A Community Voice v. Usepa ( 2021 )


Menu:
  •                 FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    A COMMUNITY VOICE; CALIFORNIA            No. 19-71930
    COMMUNITIES AGAINST TOXICS;
    HEALTHY HOMES COLLABORATIVE;              EPA No.
    NEW JERSEY CITIZEN ACTION; NEW         EPA-HQ-OPPT-
    YORK CITY COALITION TO END               2018-0166
    LEAD POISONING; SIERRA CLUB;
    UNITED PARENTS AGAINST LEAD
    NATIONAL; WE ACT FOR                      OPINION
    ENVIRONMENTAL JUSTICE,
    Petitioners,
    v.
    U.S. ENVIRONMENTAL PROTECTION
    AGENCY; MICHAEL S. REGAN,
    Administrator, United States
    Environmental Protection Agency,
    Respondents.
    On Petition for Review of an Order of the
    Environmental Protection Agency
    Argued and Submitted October 27, 2020
    San Francisco, California
    Filed May 14, 2021
    2               A COMMUNITY VOICE V. USEPA
    Before: Mary M. Schroeder and N. Randy Smith, Circuit
    Judges, and Lawrence L. Piersol,* District Judge.
    Opinion by Judge Schroeder;
    Dissent by Judge N.R. Smith
    SUMMARY**
    Toxic Substances Control Act
    Granting a petition for review, the panel remanded
    without vacatur the Environmental Protection Agency
    (“EPA”)’s Final 2019 Rule, which was a response to this
    court’s 2017 Writ of Mandamus directing the EPA to respond
    to the need for updated lead-based paint hazard standards.
    Petitioners contended that the 2019 Rule violated
    statutory provisions of the Residential Lead-Based Paint
    Hazardous Reduction Act (“PHA”) that are codified in Title
    IV of the Toxic Substances Control Act (“TSCA”), as well as
    rulings of this court in the Writ.
    The panel held that there was a Congressional mandate to
    establish lead-based paint standards, and the EPA was
    charged with setting and updating three separate hazard
    standards: the dust-lead hazard standards (“DLHS”), the
    *
    The Honorable Lawrence L. Piersol, United States District Judge for
    the District of South Dakota, sitting by designation.
    **
    This summary constitutes no part of the opinion of the court. It has
    been prepared by court staff for the convenience of the reader.
    A COMMUNITY VOICE V. USEPA                       3
    paint-lead hazard standards, and the soil-lead hazard
    standards.
    Concerning DLHS, which relate to household dust, the
    panel held that the EPA must reconsider the dust-level health
    standards. The panel held that the 2019 Rule lowered the
    lead hazard level but not to a level sufficient to protect health
    as Congress directed, because the EPA looked to factors in
    addition to health risks. The EPA’s interpretation of its
    statutory authority was contrary to the statutory language and
    express congressional purpose, as well as the Supreme
    Court’s interpretation of parallel language in other statutes
    and the EPA’s own prior interpretation on this provision.
    Concerning the lead-based paint definition, the panel held
    that the EPA failed to meet its ongoing duty to account for
    new information and modify initial standards when necessary
    to further Congress’ intent to eliminate lead-based paint
    hazard. The panel held further that the EPA’s failure to do
    so, despite the clear body of evidence commanding a new
    definition, violated Title IV of the TSCA. In addition, the
    EPA’s failure to provide any sensible explanation for its
    delay made the inaction arbitrary and capricious.
    Concerning the soil-lead hazard standards, the panel held
    that the EPA’s existing soil-lead hazard standards did not
    identify all levels of lead in soil that are dangerous to human
    health, and thus was contrary to Title IV of the TSCA. The
    panel held that the EPA had an ongoing duty to update the
    standards, and it could not recite “scientific uncertainty” to
    evade its statutory duty to update regulations. The panel
    concluded that the EPA’s decision to abandon the soil-based
    hazard standards for the last two decades violated Title IV of
    the TSCA.
    4             A COMMUNITY VOICE V. USEPA
    Consistent with its holding that the EPA must reconsider
    the DLHS, the panel directed the EPA to reconsider the dust-
    lead clearance levels as well in the same proceeding. Both
    sets of standards are interrelated and must work together to
    effectuate Congress’ intent to end the hazards of lead paint in
    children.
    Dissenting, Judge N.R. Smith would deny the petition for
    review. He would hold that the statutory scheme of the
    TSCA and PHA authorized the EPA to consider both health
    and nonrisk factors in setting the DLHS; the EPA did not act
    arbitrarily or capriciously in setting those levels; and the EPA
    did not violate the 2017 Writ in declining to set soil-based
    hazard standards.
    COUNSEL
    Jonathan J. Smith (argued), Eve C. Gartner, Victoria Bogdan
    Tejeda, and Sophia B. Jayanty, Earthjustice, New York, New
    York, for Petitioners.
    Daniel R. Dertke (argued), Attorney Environmental Defense
    Section; Jonathan D. Brightbill, Principal Deputy Assistant
    Attorney General; Environment and Natural Resources
    Division, United States Department of Justice, Washington,
    D.C.; Steve Anderson, Office of the General Counsel, United
    States Environmental Protection Agency, Washington, D.C.;
    for Respondents.
    Bethany A. Davis Noll, Institute for Policy Integrity, New
    York, New York, for Amicus Curiae Institute for Policy
    Integrity.
    A COMMUNITY VOICE V. USEPA                     5
    Erik C. Baptist, Richard W. Smith, and Douglas C. Dreier,
    Wiley Rein LLP, Washington, D.C., for Amici Curiae
    National Association of Home Builders of the United States,
    Window & Door Manufacturers Association, National
    Multifamily Housing Council, and National Apartment
    Association.
    Emily A. Benfer, Health Justice Advocacy Clinic,
    Morningside Heights Legal Services Inc., Columbia Law
    School, New York, New York, for Amici Curiae American
    Academy of Pediatrics, American Public Health Association,
    National Association of County and City Health Officials,
    Network for Public Health Law, and Dr. Bruce Lanphear.
    Tom Neltner, Silver Spring, Maryland, for Amicus Curiae
    Lead and Environmental Hazards Association.
    OPINION
    SCHROEDER, Circuit Judge:
    INTRODUCTION
    This case is part of what is becoming a lengthy, not very
    hopeful, saga of our nation’s efforts to deal with the dangers
    of lead paint that remain in older housing, in soil, as well as
    in the residue of earlier clean ups. Before us is the
    Environmental Protection Agency’s Final 2019 Rule,
    promulgated after this court issued a Writ of Mandamus in
    2017 in response to years of inaction by the Environmental
    Protection Agency (EPA). In re A Community Voice,
    
    878 F.3d 779
    (2017).
    6             A COMMUNITY VOICE V. USEPA
    When Congress passed the Residential Lead-Based Paint
    Hazard Reduction Act (PHA) in 1992, our government’s
    attempts to deal with the dangers of the paint appeared to
    ramp up. Congress acted in the wake of alarming scientific
    findings that American children suffer from widespread low-
    level lead poisoning. Nearly nine years later, in 2001, the
    EPA issued regulations that included lead-based paint hazard
    standards, but by 2009 it had become clear those standards
    were not adequate and that the EPA was being too slow to
    react. The situation prompted several organizations, many of
    whom are also Petitioners here, to file a rulemaking petition
    asking the EPA to update the dust-lead hazard standards,
    dust-lead clearance levels, and the definition of lead-based
    paint (2009 Petition).
    The EPA granted the 2009 Petition, but nearly eight years
    elapsed without any rulemaking. Petitioners therefore sought
    a directive to the EPA from this court, and in 2017 we issued
    the writ of mandamus (Writ) in the face of the EPA’s
    continued failure to act. See
    id. The 2019 Rule
    challenged here is the EPA’s response to
    the Writ. The Rule, however, does not update the definition
    of lead-based paint, nor does it update the dust-lead clearance
    levels or soil-lead hazard standards. It lowers the standards
    for dust-lead hazards, but to an extent less than what the
    Petitioners say the law requires. The Petitioners contend the
    2019 Rule violates important statutory provisions of the PHA
    that are now codified in Title IV of the Toxic Substances
    Control Act (TSCA IV), as well as rulings of our court in the
    Writ.
    Petitioners’ standing is not challenged. Nor is our
    jurisdiction, because the TSCA IV gives the Courts of
    A COMMUNITY VOICE V. USEPA                      7
    Appeals exclusive jurisdiction to review final rules.
    15 U.S.C. § 2618(a)(1)(B).
    The most serious issue of statutory interpretation in the
    case concerns the definitions of the lead-based paint hazard
    standards and whether they comply with the TSCA’s
    requirement that the EPA identify “any condition” of lead in
    dust, paint, and soil that would result in “adverse human
    health effects as established by the administrator under
    [TSCA IV].” 15 U.S.C. §§ 2683, 2681(10). Petitioners
    contend that the TSCA requires the EPA to set the standards
    on the basis of the EPA’s assessment of health risks and
    without regard to factors such as cost. The EPA’s position is
    that, although this provision of the TSCA refers only to health
    effects, the EPA may also look to other factors, having to do
    with feasibility and efficacy. It reasons that because it is now
    well established that any level of lead in the blood leads to
    adverse health effects, the statutory language gives the EPA
    discretion to select hazard standards it wishes to enforce,
    rather than ones aimed at eliminating health risks. Congress,
    however, said that the EPA was to look at risks to health. We
    interpret the statute accordingly. The current dust-lead
    hazard standards, lead-based paint definition, and soil-lead
    hazard standards do not identify all levels of lead that lead to
    adverse human health effects and therefore violate the TSCA.
    Petitioners also contend that the EPA’s failure to update
    the definition of both lead-based paint and the soil-lead
    hazard standards is arbitrary and capricious. The EPA has
    continually refused to update the lead-based paint definition
    on the ground that it lacks sufficient information. We
    conclude that its failure to explain why such lack of data has
    persisted for more than a decade, in the face of mounting
    evidence of lead-based paint dangers, is arbitrary and
    8             A COMMUNITY VOICE V. USEPA
    capricious. See Greater Yellowstone Coal., Inc. v. Servheen,
    
    665 F.3d 1015
    , 1028 (9th Cir. 2011). The failure to update
    the soil-lead hazard standards is unjustified in the face of the
    now undisputed evidence that there is no safe level of lead
    exposure.
    The EPA did not deal with dust-lead clearance levels in
    this 2019 Rule because it has referred the subject to separate
    rulemaking. No record of that proceeding is before us.
    Because the dust-lead clearance levels concern the lead
    content of dust after abatement of dust-lead hazards, the dust-
    lead hazard standards (DLHS) and the clearance levels are
    interrelated. Since, as a result of this proceeding, we have
    ordered the EPA to reexamine the DLHS, the same fate must
    await the clearance levels.
    Before discussing the standards the EPA did promulgate
    within this Rule, we briefly review the history of federal lead
    paint regulation, a history that many might characterize as
    sluggish. Our earlier opinion contains a fuller summary.
    BACKGROUND AND SUMMARY
    Lead-based paint was banned for consumer use in 1978,
    but it was not until more than a decade later, in 1992, that
    Congress enacted the Residential Lead-Based Paint Hazard
    Reduction Act (PHA). Pub L. 102-550, 106 Stat. 3672. The
    Act amended the TSCA adding Title IV entitled “Lead
    Exposure Reduction.” 15 U.S.C. §§ 2681–92. TSCA IV
    delegated to the EPA authority to establish lead-based paint
    hazards. Congress also established the original definition of
    lead-based paint with reference to the level of lead it
    contained, and provided the EPA could establish future levels
    that would apply in all locations other than older housing,
    A COMMUNITY VOICE V. USEPA                      9
    where standards were to be set by the U.S. Department of
    Housing and Urban Development.
    Id. § 2681(9). Congress
    prescribed a rapid, 18-month timeline for EPA’s
    promulgation of lead-based paint hazards
    , id. § 2683, but
    the
    EPA did not finalize standards until 2001. 40 C.F.R.
    § 745.65 (2001) (amended Jan. 6, 2020). These standards
    were believed by the EPA, at the time, to be sufficient to
    maintain a safe blood lead level (BLL) in children.
    Within a few years, however, scientific knowledge had
    progressed to the point where it was generally understood that
    there is no safe level of lead, so that the previous lead-based
    paint standards were inadequate. Yet the EPA did not act.
    By 2009, several of the entities that are Petitioners before us
    became concerned with the EPA’s inaction and filed an
    administrative petition with the EPA asking for rulemaking.
    They urged the EPA to lower the DLHS and associated dust-
    lead clearance levels from 40 µg/ft2 of surface area to
    10 µg/ft2 or less for floors and from 250 µg/ft2 of surface area
    to 100 µg/ft2 or less for windowsills. The 2009 Petition also
    asked the EPA to broaden the definition of lead-based paint
    to include all conditions that were then-known to be toxic.
    The 2009 Petition asked the EPA to “reduce the level of lead
    in paint that would define a lead-based paint from 0.5 percent
    by weight to 0.06 percent by weight, with a corresponding
    reduction in the 1.0 milligram per square centimeter
    standard.”
    The EPA granted the 2009 Petition and conducted some
    follow-up studies but took no rulemaking action. Petitioners
    then filed the mandamus action that resulted in our 2017
    opinion. We there held the EPA had a duty to act and that it
    had unreasonably delayed in doing so. See In re A
    Community 
    Voice, 878 F.3d at 779
    . We said that the EPA has
    10            A COMMUNITY VOICE V. USEPA
    a duty stemming from the TSCA “to engage in an ongoing
    process, accounting for new information, and to modify initial
    standards when necessary to further Congress’s intent: to
    prevent childhood lead poisoning and eliminate lead-based
    paint hazards.”
    Id. at
    784. 
    We also recognized the EPA’s
    duty stemming from the Administrative Procedures Act
    (APA) to fully respond to petitions for rulemaking in a
    reasonable amount of time.
    Id. at
    786. 
    We ordered the EPA
    to take action within 90 days of our opinion becoming final,
    and to promulgate a final rule within a year.
    Id. at
    788.
    
    The EPA in 2019 adopted the Final Rule that is before us,
    but addressing only the DLHS. The EPA lowered the DLHS
    to 10 µg/ft2 and 100 µg/ft2 for floors and windowsills,
    respectively (10/100 Standards). These match the levels
    requested in the 2009 Petition which had been submitted ten
    years earlier. In promulgating the 2019 Rule, the EPA
    acknowledged that its earlier, 2018, proposed rule had drawn
    many comments that a lower standard was needed to protect
    children’s health, but the EPA nevertheless adopted the 2019
    Rule as originally proposed.
    The EPA now contends that, in promulgating a more
    lenient standard than that necessary to protect children’s
    health, it properly took into consideration factors other than
    health, such as feasibility and efficacy. This gives rise to the
    primary issue of statutory interpretation that we must resolve
    in this proceeding. The TSCA IV requires the EPA to
    identify “any condition” of lead in dust, paint, and soil
    resulting in adverse human health effects. 15 U.S.C.
    § 2681(10). The EPA’s position is that the statute grants it
    discretion to look to factors outside of adverse effects on
    health. Its interpretation, however, is not supported by the
    language of TSCA IV, or Congress’s purpose in enacting its
    A COMMUNITY VOICE V. USEPA                      11
    lead-based paint provisions, which are directed toward
    protecting children’s health by reducing exposure to lead.
    We therefore resolve that legal issue in favor of the
    Petitioners.
    The 2019 Rule does nothing with respect to the lead-
    based paint definition, with the EPA explaining, as it had in
    2001, that it lacks sufficient data. The Rule also does nothing
    with respect to the soil-lead hazard standards, with the EPA
    taking a similar position that it lacks sufficient data to update
    the standards, and, further, that it is under no duty to do so by
    virtue of either the statute or the Writ. Petitioners contend
    that the EPA’s failure to update the lead-based paint
    definition and soil-lead hazard standards violates the EPA’s
    ongoing statutory duty to maintain and update the lead-based
    paint hazard standards. We have already recognized such a
    duty. A Community 
    Voice, 878 F.3d at 784
    . The EPA’s
    continued reliance on inadequate information for
    approximately two decades is arbitrary and capricious and in
    violation of its statutory obligation of scientific currency.
    The dust-lead clearance levels are directly related to the
    DLHS because the clearance levels represent the levels of
    lead in dust that can remain after dust-lead has been abated.
    40 C.F.R. § 745.227(e)(8)(viii). The EPA has expressly
    recognized an apparent need for updating the clearance
    levels, yet it has set in motion a rulemaking process separate
    and apart from this proceeding. The relationship between the
    DLHS and clearance levels indicates that a change to the
    DLHS requires the simultaneous reconsideration of the
    associated clearance levels. This has not been done.
    We therefore remand the 2019 Rule and direct the EPA to
    reconsider the DLHS and to do so in conjunction with the
    12            A COMMUNITY VOICE V. USEPA
    dust-lead clearance levels that have been the subject of
    separate proceedings. We also hold that the EPA is
    statutorily required to engage in the appropriate rulemaking
    to update the definition of lead-based paint and soil-lead
    hazard standards. In this Rule, the EPA has taken some
    action with respect to the DLHS, albeit insufficient. Some
    action is better than no action, so we remand the 2019 Rule
    without vacating it.
    DISCUSSION
    I. The Congressional Mandate to Establish Lead-Based
    Paint Hazards
    Congress enacted the PHA because it recognized that lead
    paint was a national problem that required an urgent response.
    Its stated purpose was “to develop a national strategy to build
    the infrastructure necessary to eliminate lead-based paint
    hazards in all housing as expeditiously as possible.”
    42 U.S.C. § 4851(a)(1). In amending the TSCA through the
    PHA, Congress delegated regulatory authority to the EPA and
    instructed it, among other tasks, to establish hazard standards
    that delineate levels at which lead becomes dangerous.
    15 U.S.C. § 2683. Identifying the levels of lead in paint, as
    well as in dust and soil, that created dangers to health seemed
    to be an essential step in the effort to protect our nation’s
    children from the toxic effects of lead.
    Congress thus instructed the EPA to promulgate
    regulations identifying lead-based paint hazards, and to do so
    within 18 months.
    Id. The standards serve
    a number of
    purposes. They inform the public about what constitutes
    dangerous levels of lead in order to further risk assessment
    and abatement strategies. States rely on the national
    A COMMUNITY VOICE V. USEPA                    13
    standards in setting forth their own lead programs. Public
    disclosures about lead dangers in most older housing must
    include the standards. 42 U.S.C. § 4852(d).
    Congress told the EPA to identify the level at which lead
    becomes dangerous to human health when contained in
    principal sources of lead poisoning. 15 U.S.C. § 2681(10).
    It instructed the Administrator to set the hazard levels to
    identify “any condition that causes exposure to lead from
    lead-contaminated dust, lead-contaminated soil, lead-
    contaminated paint… that would result in adverse human
    health effects as established by the Administrator under this
    chapter.”
    Id. § 2681(10). This
    means the EPA is charged
    with setting and updating three separate hazard standards: the
    dust-lead hazard standards, the paint-lead hazard standards,
    and the soil-lead hazard standards. The Petitioners challenge
    what the EPA has done or has not done with respect to all
    three types of hazards.
    A. Dust-Lead Hazard Standards
    Dust-lead hazard standards relate to household dust. Lead
    gets into household dust through lead-based paint debris, so
    children are exposed to lead through the dust in their homes.
    According to the EPA’s own 2017 model, lead from dust and
    soil accounts for over seventy percent of lead exposure in
    children ages one through six with the highest levels of lead
    in their blood, and it accounts for over fifty percent of lead
    exposure in infants with the highest blood lead levels.
    Valerie Zartarian, et. al., Children’s Lead Exposure: A
    Multimedia Modeling Analysis to Guide Public Health
    Decision-Making, Environmental Health Perspectives,
    097009-4 (Sept. 12, 2017), ehp.niehs.nih.gov/doi/pdf/
    10.1289/EHP1605. TSCA IV defines lead-contaminated dust
    14            A COMMUNITY VOICE V. USEPA
    as “surface dust in residential dwellings that contains an area
    or mass concentration of lead in excess of levels determined
    by the Administrator under this subchapter to pose a threat of
    adverse health effects in pregnant women or young children.”
    15 U.S.C. § 2681(11). The DLHS are meant to identify the
    levels where lead-contaminated dust within buildings pose a
    danger to human health. The EPA has historically chosen to
    promulgate two hazard standards for dust-lead: the level at
    which the concentration of dust-lead becomes unsafe on
    floors, and the level at which it becomes unsafe on
    windowsills. Together they comprise the DLHS.
    The EPA first set the DLHS in 2001, a delayed response
    to Congress’s 1992 demand. In response to the Writ, the
    EPA reset the DLHS in this 2019 Rule. The new standards
    are 10 µg/ft2 for floors and 100 µg/ft2 for windowsills, and
    have been dubbed the 10/100 Standards. In promulgating the
    Standards, however, the EPA did not try to set them at the
    threshold level that causes harm to human health, but also
    took into account outside factors bearing on implementation,
    such as current testing capabilities. The Petitioners contend
    there is a clear statutory directive that the EPA set the hazard
    standards at the point at which the level dust-lead creates
    hazards to human health. The Petitioners say the 10/100
    Standards are too high, because they permit harm to
    children’s health.
    Under the DLHS as promulgated, there will be adverse
    human health effects. The EPA does not dispute this fact.
    The EPA argues that it has the discretion to set the levels at
    its choosing, even if they permit threats to children’s health,
    because the statute contains a general delegation of regulatory
    authority to the Administrator.
    A COMMUNITY VOICE V. USEPA                     15
    The language on which it relies is contained in the
    statutory definition of “lead-based paint hazards.” 15 U.S.C.
    § 2681(10). The provision reads as follows:
    The term “lead-based paint hazard” means
    any condition that causes exposure to lead
    from lead-contaminated dust, lead-
    contaminated soil, lead-contaminated paint
    that is deteriorated or present in accessible
    surfaces, friction surfaces, or impact surfaces
    that would result in adverse human health
    effects as established by the Administrator
    under this subchapter.
    The EPA argues that the statutory language “as
    established by the Administrator” modifies the previous
    phrase, “would result in adverse human health effects,” and
    therefore the EPA has broad discretion to determine what
    level of harm constitutes a hazard, taking into account factors
    other than health. The Petitioners contend that this provision
    instructs the EPA to look only to health.
    The natural reading is that the delegation to the EPA is to
    establish the conditions that cause harm, not what constitutes
    harm. The provision contains no directive to consider factors
    apart from health. The language of the provision supports
    Petitioners’ interpretation.
    Congress made clear its purpose in amending the TSCA
    was to eliminate lead-based paint hazards: “to develop a
    national strategy . . . to eliminate lead-based paint hazards in
    all housing as expeditiously as possible.” 42 U.S.C.
    § 4851(a)(1). The TSCA IV’s statutory scheme reflects this
    purpose and also supports Petitioners’ interpretation. The
    16            A COMMUNITY VOICE V. USEPA
    statute charges the EPA with identifying “dangerous levels of
    lead.” See 15 U.S.C. § 2683. The definitional provisions in
    Section 2681 contain separate definitions of “lead-
    contaminated dust” and “lead-contaminated soil” that, like
    the definition of lead-based paint hazards, reference harm to
    health and no other factors. Section 2681(11) defines lead-
    contaminated dust as “surface dust in residential dwellings
    that contains an area or mass concentration of lead in excess
    of levels determined by the Administrator under this
    subchapter to pose a threat of adverse health effects in
    pregnant women or young children.” Section 2681(12)
    defines “lead-contaminated soil” as “bare soil on residential
    real property that contains lead at or in excess of the levels
    determined to be hazardous to human health by the
    Administrator under this subchapter.” Congress made no
    mention of economic or market factors in any of its
    definitional provisions of sources of harm.
    The EPA’s duty in defining the hazards as described in
    Sections 2683 and 2681(10) concerns identifying the dangers
    of lead-based paint in order to protect health. The EPA,
    however, in identifying the hazards, has looked to other
    factors, including feasibility and efficacy. These are practical
    considerations bearing on implementation of the hazard
    standards, not the identification of the hazards to health. The
    TSCA IV deals separately with identification and
    implementation. Other parts of the TSCA IV address how the
    standards should be implemented and expressly take into
    account practical considerations, such as efficacy. See, e.g.,
    15 U.S.C. § 2682(a)(1) Lead-based paint activities training
    and certification (“[T]he Administrator shall . . . promulgate
    final regulations . . . [which shall] contain standards for
    performing lead-based paint activities, taking into account
    A COMMUNITY VOICE V. USEPA                     17
    reliability, effectiveness, and safety.”). Section 2681(10)
    deals only with identifying the hazards.
    Congress has used this identification versus
    implementation dichotomy before. In the Clean Air Act
    (CAA), Congress told the EPA to set primary ambient air
    quality standards to protect the public health. The standards
    were to be set at levels “the attainment and maintenance of
    which . . . are requisite to protect the public health” with “an
    adequate margin of safety.” 42 U.S.C. § 7409(b)(1). Other
    sections of the CAA deal with implementing the air quality
    standards and explicitly instruct the EPA to consider non-
    health factors such as achievability and cost. See, e.g.,
    
    42 U.S. C
    . §§ 7411(a)(1), (b)(1)(B) (The EPA is charged with
    setting standards of performance for sources of air pollution
    that take into account achievability and cost); 42 U.S.C.
    § 7545(k)(1) (The EPA is charged with creating requirements
    for reformulated gasoline based in part on cost and
    achievability). The pattern is the same as in the TSCA IV.
    Indeed, the Supreme Court has actually considered
    whether this CAA standard identification provision allows the
    EPA to consider costs in setting clean air standards and held
    that it does not. Whitman v. Am. Trucking Associations,
    
    531 U.S. 457
    , 467–468 (2001). There, the industry
    defendants argued that use of phrases like “adequate margin”
    and “requisite to protect,” used to describe the regulatory
    goal, gave the EPA the discretion to look to non-health
    factors in setting the standards. Justice Scalia’s opinion for
    the Court said it was “implausible that Congress would give
    to the EPA through these modest words the power to
    determine whether implementation costs should moderate
    national air quality standards.”
    Id. at
    467.
    
    18 
               A COMMUNITY VOICE V. USEPA
    In so concluding, the Court recognized the distinction
    Congress had drawn in the CAA between identification of
    standards and implementation. The defendants in Whitman
    challenged the EPA’s exclusion of implementation costs as
    resulting in standards that were too stringent.
    Id. at
    467.
    
    They predicted that it could have dire implications, like
    “closing down whole industries.”
    Id. The Court responded
    that economic factors were not to be considered in setting the
    standards because other sections of the CAA explicitly allow
    the EPA to consider costs.
    Id. at
    467.
    
    Congress has also used the identification and
    implementation dichotomy in the Resource Conservation and
    Recovery Act (RCRA). Util. Solid Waste Activities Grp. v.
    EPA, 
    901 F.3d 414
    , 449 (D.C. Cir. 2018) (citations omitted).
    The RCRA instructs the EPA to classify sanitary landfills
    only “if there is no reasonable probability of adverse effects
    on health or the environment from disposal of solid waste at
    such facility.” 42 U.S.C. § 6944(a). When industry
    petitioners argued that the “no reasonable probability” phrase
    implied that the EPA needed to consider costs in this
    classification program, the D.C. Circuit pointed to the fact
    that other sections of RCRA told the EPA to consider costs to
    conclude that it was “far from clear that the EPA could
    consider costs even if it wanted to.” Util. Solid Waste
    Activities 
    Grp., 901 F.3d at 448
    –449 (citing 42 U.S.C.
    § 6982(n)(6)).
    In this case, the EPA argues that a literal interpretation of
    the text, requiring the EPA to set a threshold level of harm in
    looking only to health risks, no longer makes sense because
    we now know that all levels of lead are harmful to human
    health and that the EPA, acting on its own, cannot eliminate
    lead risks. We agree the EPA cannot do it alone, but that
    A COMMUNITY VOICE V. USEPA                      19
    does not absolve it of the statutory duty to pursue that goal,
    much less grant it the authority to take into account
    extraneous factors. As the Supreme Court has said, the EPA
    “may not rewrite clear statutory terms to suit its own sense of
    how the statute should operate.” Util. Air Regulatory Grp. v.
    EPA, 
    573 U.S. 302
    , 328 (2014). In our case, this means that
    if Congress wanted to grant the EPA the discretion to
    determine what it believes should be the allowable level of
    adverse health risks, Congress would have made that clear,
    and would not have buried it in a vague delegation of
    regulatory authority. As the Court put it in Whitman,
    
    531 U.S. 457
    , 468 (2001), Congress does not “hide elephants
    in mouseholes.”
    Moreover, when the EPA promulgated the paint-lead
    hazard standard in 2001, the EPA itself took a strict
    interpretive approach to defining hazards to health and
    embraced the “identification versus implementation”
    distinction. It observed then that any level of lead in paint
    was a health risk, so it designated the presence of any lead
    paint as a hazard. The EPA pointed to comments indicating
    “that even very tiny amounts of deteriorated lead-based paint
    are sufficient in certain circumstances to result in adverse
    health effects.” 66 Fed. Reg. 1206, 1208 (Jan. 5, 2001).
    These comments supported the EPA’s decision to designate
    “any amount of deteriorated paint as a lead-based paint lead
    hazard.”
    Id. The EPA explained
    that while implementation
    provisions allowed for other considerations, identification of
    the hazard level should encapsulate all levels of risk to health.
    Id. The 2019 Rule
    lowers the lead hazard level but not to a
    level sufficient to protect health as Congress has directed,
    because the EPA has looked to factors in addition to health.
    20            A COMMUNITY VOICE V. USEPA
    The EPA’s interpretation of its statutory authority is contrary
    to the statutory language and express congressional purpose,
    as well as the Supreme Court’s interpretation of parallel
    language in other statutes and the EPA’s own prior
    interpretation of this provision. For these reasons, while we
    do not vacate the DLHS, which makes some improvement,
    the EPA must reconsider the DLHS.
    B. Lead-Based Paint Definition
    In millions of older homes, lead in paint is a highly
    concentrated and common source of lead exposure. The CDC
    describes lead-based paint and lead-contaminated dust as the
    “most widespread and hazardous sources of lead
    exposure for young children.” CDC, Lead in Paint,
    www.cdc.gov/nceh/lead/prevention/sources/paint.htm (last
    reviewed Nov. 24, 2020) (last visited Feb. 5, 2021). Children
    may be directly poisoned by chewing on surfaces with lead-
    paint.
    Id. Lead-paint also gets
    into dust in their homes.
    Id. The TSCA IV’s
    lead-based paint hazard provision requires
    the EPA to identify what level of lead-based paint constitutes
    a paint-lead hazard. 15 § U.S.C. 2681(10). In the 2001
    Regulations, the EPA defined the hazard to be “any” level of
    lead-based paint. 40 C.F.R. § 745.65(a)(4). The question
    then becomes: what is lead-based paint, that is, what is the
    level of lead in paint required to make it “lead-based.” The
    definition is critical, and, to be consistent with the definition
    of lead-based paint hazard, it needs to encompass all levels of
    lead in paint that lead to adverse human health effects.
    Congress originally defined lead-based paint as paint with
    “lead levels in excess of 1.0 milligrams per square centimeter
    or 0.5% by weight,” with the proviso that it could be at “such
    other level as may be established by the Administrator.”
    15 U.S.C. § 2681(9).
    A COMMUNITY VOICE V. USEPA                      21
    Congress defined the level in 1992. The EPA has never
    updated it, despite our ever-expanding knowledge of the
    dangers of lead. Four years ago, in issuing the Writ, we said
    the definition “appear[ed] to be too high to provide a
    sufficient level of safety” and characterized the need for a
    new definition as obvious and apparent. In re A Community
    
    Voice, 878 F.3d at 782
    , 785, 792. We noted then that the
    EPA had not disputed the finding that, based on modern
    science, its definition of lead-based paint was insufficient.
    Id. at
    782. 
    We held that the EPA’s then eight-year delay was
    unreasonable and said that there was an urgent need for new
    rulemaking because of the “severe risks to children of lead-
    poisoning under EPA’s admittedly insufficient standards.”
    Id. at
    788. 
    We ordered the EPA to promulgate a new rule
    within one year, and to inform the court if it needed us to
    modify the deadline.
    Id. Despite our clear
    directive, the EPA has left the definition
    unchanged. It blames its inaction on “significant data gaps,”
    a justification we conclude is arbitrary and capricious. A key
    element of rulemaking is the collecting of relevant
    information. Courts have recognized that an agency cannot
    rely on uncertainty as an excuse for inaction.
    The Supreme Court in In Motor Vehicle Mfrs. Ass’n of
    U.S., Inc. v. State Farm Mut. Auto. Ins. Co., 
    463 U.S. 29
    (1983) held that an agency may not continue to rely on
    uncertainty for regulatory action or inaction that evades
    statutory duties. The Court recognized that “policymaking in
    a complex society must account for uncertainty,” but
    explained that “does not imply that it is sufficient for an
    agency to merely recite the terms ‘substantial uncertainty’ as
    a justification for its actions.”
    Id. at
    52.
    22 
               A COMMUNITY VOICE V. USEPA
    The D.C. Circuit recognized the same principle in Nat’l
    Ass’n of Broadcasters v. F.C.C., 
    740 F.2d 1190
    , 1210 (D.C.
    Cir. 1984) when it said “an agency would be paralyzed if all
    the necessary answers had to be in before any action at all
    could be taken.” Our court echoed the Supreme Court’s
    directive in the environmental context. See Greater
    Yellowstone Coalition, Inc., 
    665 F.3d 1015
    . There, the U.S.
    Fish and Wildlife Service contended there was not enough
    information about a declining food supply to support keeping
    Yellowstone Grizzly Bears listed as “threatened” under the
    Endangered Species Act.
    Id. at
    1019, 1028. 
    We cited State
    Farm in concluding “[i]t is not enough for the [agency] to
    simply invoke ‘scientific uncertainty’ to justify its action.”
    Id. at
    1028. 
    We said agencies have to provide reasons why
    uncertainty justifies their actions, lest the actions be deemed
    arbitrary and capricious.
    Id. In this case,
    the EPA has not explained why uncertainty
    justifies its decision to leave the definition of lead-paint as-is.
    The EPA partially justifies its inaction by citing to gaps in the
    scientific literature, when we said four years ago the need to
    act was urgent.
    We have gained much knowledge since Congress adopted
    the 1992 definition of lead-based paint; there is no safe level
    of lead exposure. The CDC has been telling us this for years.
    CDC, Health Effects of Lead Exposure,
    www.cdc.gov/nceh/lead/prevention/health-effects.htm (last
    reviewed Jan. 7, 2020) (last visited Feb. 5, 2021); see In re
    A Community 
    Voice, 878 F.3d at 782
    .
    The Consumer Product Safety Commission (CPSC) has
    taken action to protect consumers from lead by adopting a
    standard much more protective than the EPA’s outdated
    A COMMUNITY VOICE V. USEPA                      23
    standards. The CPSC’s regulation bans the production of
    paint with a lead content of over 0.009 percent by weight,
    declaring it “hazardous.” 16 CFR § 1303.1(a). Under the
    EPA’s definition, lead-paint is not hazardous until it is over
    fifty-five times higher than the CPSC’s definition.
    The EPA’s responsibility here is apparent from
    Congress’s purpose in amending the TSCA. 42 U.S.C.
    § 4851(a)(1). We have characterized the agency’s duty as
    “ongoing.” In re A Community 
    Voice, 878 F.3d at 784
    . It has
    to account for new information and “modify initial standards
    when necessary to further Congress’s intent” which was to
    “eliminat[e] lead-based paint hazards.”
    Id. at
    784. 
    The
    EPA’s failure to do so, despite the clear body of evidence
    commanding a new definition, violates the TSCA IV. In
    addition, its failure to provide any sensible explanation for its
    delay makes the inaction arbitrary and capricious.
    C. Soil-Lead Hazard Standards
    Lead infiltrates America’s soil through residue from lead-
    based paint, leaded fuels, and other industrial sources. For
    American children, who should be able to play safely in their
    neighborhood yards, lead in soil is particularly dangerous.
    While playing outside, children ingest, touch, and inhale
    lead from soil.               CDC, Lead in Soil,
    www.cdc.gov/nceh/lead/prevention/sources/soil.htm (last
    reviewed Nov. 24, 2020) (last visited Feb. 5, 2021). Lead
    from soil also gets into homes through dust. In the TSCA IV,
    Congress charged the EPA with setting the soil-lead hazard
    standards in order to identify the level at which lead in soil
    becomes dangerous to human health. 15 U.S.C. § 2681(10).
    24            A COMMUNITY VOICE V. USEPA
    The soil-lead hazard standards we have now were set by
    the EPA in 2001. They apply to lead in “bare soil” at
    residential properties and child-occupied facilities; they
    identify a “hazard” whether there is a total of 400 parts per
    million (ppm) (µg/g) of lead in a play area or an average of
    1,200 ppm in the rest of the yard. 40 C.F.R. § 745.65(c). The
    EPA has not considered updating these since 2001.
    The EPA’s antiquated definition of soil-lead hazard
    standards allows for up to five percent of children to develop
    a blood lead level above the 2001 level of concern, which was
    set at 10 µg/dL. The EPA believed at the time that this would
    leave ninety-five percent of children with safe levels of lead
    in their blood (levels below 10 µg/dL). The EPA now
    acknowledges there is no safe level of lead in blood. It
    follows then, that the EPA’s existing soil-lead hazard
    standards do not identify all levels of lead in soil that are
    dangerous to human health. This is contrary to the TSCA IV.
    The EPA’s main explanation for leaving out the soil-lead
    hazard standards in the 2019 Rule is that revision of those
    standards was not within the scope of the 2009 Petition for
    rulemaking. It is within the scope of the EPA’s statutory
    obligations, however. The statute places an “ongoing” duty
    on the EPA to update standards “when necessary to further
    Congress’s intent.” In re A Community 
    Voice, 878 F.3d at 784
    (citing 15 U.S.C. § 2681). The statutory authority to
    amend, and the EPA’s statutory duty to promulgate hazard
    standards sufficient to protect human health, have remained
    constant. It is not the public’s duty, nor is it the court’s duty,
    to notify the EPA when it should do its job.
    The EPA also relies to some extent on scientific
    uncertainty as an excuse for its decision to ignore the
    A COMMUNITY VOICE V. USEPA                    25
    outdated soil-lead hazard standards. This is the same reason
    the EPA gave for not taking any action with respect to the
    definition lead-based paint. As we pointed out earlier in
    addressing that failing, the EPA cannot simply recite
    “scientific uncertainty” to evade its statutory duty to update
    regulations. See, e.g., Greater Yellowstone Coalition, Inc.,
    
    665 F.3d 1019
    . The agency must explain why the uncertainty
    justifies the inaction. It has provided no such explanation.
    For these reasons, the EPA’s decision to abandon the soil-
    lead hazard standards for the last two decades violates TSCA
    IV.
    II. Dust-Lead Clearance Levels
    The dust-lead clearance levels are contained in the only
    regulation before us that has been promulgated pursuant to
    the EPA’s implementation authority. The TSCA’s principal
    provision on implementation charges the EPA with
    promulgating regulations governing lead-based paint,
    including “risk assessment, inspection, and abatement
    activities,” while “taking into account reliability,
    effectiveness, and safety.” 15 U.S.C. § 2682(a)(1).
    Dust-lead clearance levels represent the maximum
    amount of lead in dust allowable in order for an abatement to
    be considered successful. 40 C.F.R. § 745.227(e)(8)(viii).
    The clearance levels are thus directly related to the level at
    which lead dust is a health risk (DLHS). In its 2001
    abatement regulations, the EPA established clearance levels
    that matched the 2001 DLHS of 40 and 250 µg/ft2 for floors
    and windowsills, respectively.
    Id. This meant that
    an
    abatement was successful only if it eliminated the dust
    hazards.
    26            A COMMUNITY VOICE V. USEPA
    In the 2019 Rule the EPA lowered the DLHS but did not
    even consider the associated clearance levels. The EPA
    established a separate rulemaking proceeding to establish new
    clearance levels, a proceeding unrelated to this Rule and
    hence detached from the DLHS rulemaking. This would
    appear to ignore the close relationship between DLHS and the
    associated clearance levels.
    In setting hazard standards, including the DLHS, the
    TSCA IV refers only to health as a factor to be considered.
    15 U.S.C. § 2681(10). With respect to implementation,
    including abatement, the TSCA IV gives the EPA latitude to
    consider “reliability, effectiveness, and safety.”
    Id. § 2682. This
    is in line with the overall statutory scheme that
    differentiates between identification of hazards and
    implementation of remedial measures.            As we have
    previously described here, and the Supreme Court has
    discussed in a different context in Whitman, the EPA has
    more discretion in setting the clearance levels because they
    concern implementation of remedial measures, rather than
    identification of a hazard.
    This does not mean, however, that the EPA has the
    discretion to do nothing with respect to implementation when
    it changes the hazard standard. Implementation must account
    for “reliability, effectiveness, and safety.”
    Id. § 2682(a)(1). There
    is a broad grant of authority to update the regulations.
    See 15 U.S.C.§ 2687 (“The regulations may be amended from
    time to time as necessary.”). It follows, then, that a change in
    the definition of a hazard—here, the lowering of the
    DLHS—demands reconsideration of the effectiveness and
    safety of the associated abatement regulation. Because the
    hazard standards and the clearance levels are interrelated, the
    two should be considered together. As Petitioners correctly
    A COMMUNITY VOICE V. USEPA                           27
    point out, lowering the DLHS to make it a stricter standard
    has little effect if the clearance levels remain the same or
    embody less than a commensurate adjustment.
    Consistent with our holding in this opinion that the EPA
    must reconsider the DLHS, we direct the EPA to reconsider
    the clearance levels as well in the same proceeding. Both sets
    of standards must work together to effectuate Congress’s
    intent to end the hazards of lead poisoning in our children.
    CONCLUSION
    The 2019 Rule before us is REMANDED without
    VACATUR.
    N.R. Smith, Circuit Judge, dissenting:
    The United States Environmental Protection Agency
    (“EPA”) is not charged by Congress to set lead-dust hazard
    standards to eliminate any adverse human health effects.
    Instead, Congress charged EPA to consider all factors
    (including environmental, economic, social, and health) in
    setting the lead-dust hazards standards.        Following
    Congress’s mandate and in accordance with our 2017 Writ,
    EPA enacted its 2019 Rule. EPA acted within its discretion
    in lowering the dust-lead hazard standard (“DLHS”), which
    standard was reasonable and supported by the administrative
    record.1
    1
    I agree with the majority that the lead-based paint definition and
    dust-lead clearance levels were included in the 2009 rulemaking petition
    and the 2017 Writ. The Writ required EPA to reevaluate them in its
    28              A COMMUNITY VOICE V. USEPA
    Further, EPA’s decision not to include the soil-lead
    hazard standards in the 2019 Rule was not arbitrary and
    capricious or in violation of the 2017 Writ.
    Ignoring rules of statutory construction and our standard
    of review for EPA actions, the majority reaches its decision
    as to these issues. Accordingly, I must dissent.
    I. EPA is not charged by Congress to set lead-dust
    hazard standards to eliminate any adverse human
    health effects.
    This issue is premised on the following undisputed facts:
    (1) there is no safe level of lead exposure. (2) Congress has
    never set the acceptable levels of lead exposure nor has it
    ever enacted any federal law (beyond those directed at the
    Department of Housing and Urban Development (“HUD”))
    requiring remediation of lead-based paint hazards when they
    are found. Instead, (3) Congress gave EPA discretion to
    determine the acceptable levels for lead-based paint hazards.
    Pursuant to such authority, EPA has determined the
    appropriate lead-exposure levels based on its expertise.
    However, (4) because the levels presently set are
    unsatisfactory to Petitioners (and now the majority), they
    rulemaking. With regard to the definition, EPA was not necessarily
    required to change the definition, rather, it was only required to research
    and evaluate the definition. However, the evaluation was insufficient with
    EPA only stating that there were “significant data gaps.” Cf.
    Massachusetts v. EPA, 
    549 U.S. 497
    , 534 (2007) (“If the scientific
    uncertainty is so profound that it precludes EPA from making a reasoned
    judgment . . . , EPA must say so.”). With regard to the dust-lead clearance
    levels, EPA should have included them in the 2019 rulemaking. However,
    on December 18, 2020, EPA issued a final rule revising the clearance
    levels.
    A COMMUNITY VOICE V. USEPA                    29
    request we rewrite statutes and enlarge the 2017 Writ, in an
    effort to substitute their opinions and expertise as to what
    comprises lead-based paint hazards for that of EPA. To get
    to Petitioners’ desired result as to this issue, the majority
    writes this opinion, ignoring rules of statutory construction
    and the standard of review. An examination of the Toxic
    Substances Control Act (“TSCA”), 15 U.S.C. §§ 2601–2697,
    as amended by the Residential Lead-Based Paint Hazard
    Reduction Act (“RLBPHRA”), 42 U.S.C. §§ 4851–4856,
    reveals how the majority “cherry-picked” language to support
    its conclusion.
    A. History of Lead Laws.
    To give you context, I must begin with the statutory
    background of the TSCA and the RLBPHRA. In 1976, the
    TSCA was enacted “to prevent unreasonable risks of injury
    to health or the environment associated with the manufacture,
    processing, distribution in commerce, use, or disposal of
    chemical substances.” Safer Chemicals, Healthy Families v.
    EPA, 
    943 F.3d 397
    , 406 (9th Cir. 2019) (quoting S. Rep. No.
    94-698, at 1 (1976), reprinted in 1976 U.S.C.C.A.N. 4491,
    4491).
    In 1992, recognizing that lead poisoning was still
    widespread, see 42 U.S.C. § 4851(1), Congress enacted
    RLBPHRA (Title X), which amended the TSCA “by adding
    Title IV entitled ‘Lead Exposure Reduction.’” Nat’l Multi
    Hous. Council v. EPA, 
    292 F.3d 232
    , 232 (D.C. Cir. 2002).
    The RLBPHRA “directs EPA and [HUD] to take various
    actions to protect the public from any lead-based paint hazard
    by reducing such hazard.”
    Id. The goal of
    the RLBPHRA
    was to “develop a national strategy to build the infrastructure
    necessary to eliminate lead-based paint hazards in all housing
    30              A COMMUNITY VOICE V. USEPA
    as expeditiously as possible” and to “educate the public
    concerning the hazards and sources of lead-based paint
    poisoning and steps to reduce and eliminate such hazards.”
    42 U.S.C. § 4851a(1), (7).
    However, its enactment was “not intended to ‘solve’ the
    vast problem of childhood exposure to hazardous amounts of
    lead,” but rather it “intended to provide a transition to support
    more effective strategies for eventually eliminating lead-
    based paint hazards in housing as a source of childhood lead
    poisoning. As a transition bill, Title X attempts to remove all
    major obstacles to progress, making important changes in
    approach and laying the foundation for more cost-effective
    and widespread activities for reducing lead-based paint
    hazards.”2 S. Rep. 102-332, 111 P.L. 102-550 Housing and
    Community Development Act of 1992 (July 23, 1992)
    (emphasis added).
    B. The statutory text of TSCA and RLBPHRA require
    EPA to consider all (health and nonrisk) factors in
    enacting regulations.
    The statutory text of the TSCA and the RLBPHRA clearly
    indicates that Congress expected EPA to consider a variety of
    factors in setting the levels for lead-based paint hazards; it
    never expected or required EPA to set lead-based paint
    2
    Congress enacted its first lead-based paint legislation in 1971.
    42 U.S.C. § 4851(7). Despite the knowledge of harm lead causes,
    Congress did not require testing and abatement for all target housing
    occupied by children under 6. Instead, Title X only requires that lead-
    based paint hazards be disclosed. See 42 U.S.C. § 4852d(a)(1). Thus, it
    is clear that Congress’s stated goal of “eliminat[ing] lead-based paint
    hazards in all housing as expeditiously as possible” intended to take non-
    health risk factors into account. § 4851a(1).
    A COMMUNITY VOICE V. USEPA                    31
    hazards to have zero health risk. See 42 U.S.C. § 4851a(2),
    (3), (5), (6) (outlining the purpose of Title X is to “reduce
    lead-based paint hazards in the Nation’s housing stock”;
    “establish[] a workable framework for lead-based paint
    hazard evaluation and reduction”; “develop the most
    promising, cost-effective methods for evaluating and
    reducing lead-based paint hazards”; and “reduce the threat of
    childhood lead poisoning in housing owned, assisted, or
    transferred by the Federal Government”). Rather Congress,
    recognizing that complexities of reducing lead-based paint
    hazards, enacted statutes to provide EPA the discretion to
    promulgate regulations to facilitate the reduction of lead-
    based paint hazards as necessary. See 15 U.S.C. §§ 2601,
    2681, 2683, 2685, 2687.
    To determine the intent of Congress in enacting the TSCA
    and RLBPHRA, we “begin, as always, with the language of
    the statute.” Chubb Custom Ins. Co. v. Space Sys./Loral, Inc.,
    
    710 F.3d 946
    , 958 (9th Cir. 2013) (quoting Duncan v. Walker,
    
    533 U.S. 167
    , 172 (2001)). Words are “interpreted as taking
    their ordinary, contemporary, common meaning,” “[b]ut
    [w]hen a statute includes an explicit definition, we must
    follow that definition, even if it varies from that term’s
    ordinary meaning.”
    Id. (citations and quotation
    marks
    omitted). “[B]ecause words necessarily derive meaning from
    their context, interpretation of a word or phrase depends upon
    reading the whole statutory text, considering the purpose and
    context of the statute, and consulting any precedents or
    authorities that inform the analysis.”
    Id. (alteration and quotation
    marks omitted) (quoting Dolan v. U.S. Postal Serv.,
    
    546 U.S. 481
    , 486 (2006)). “Reviewing the whole statutory
    scheme is particularly important for a law such as [TSCA and
    RLBPHRA], which [are] complex regulatory statute[s] . . . .”
    See
    id. 32
               A COMMUNITY VOICE V. USEPA
    In cases of statutory interpretation, our role “is to construe
    the language so as to give effect to the intent of Congress.”
    United States v. American Trucking Ass’ns, 
    310 U.S. 534
    ,
    542 (1940). “If the intent of Congress is clear, that is the end
    of the matter; for the court, as well as the agency, must give
    effect to the unambiguously expressed intent of Congress.”
    Chevron, U.S.A., Inc. v. Nat. Res. Def. Council, Inc., 
    467 U.S. 837
    , 842–43 (1984). Here, Congress’s intent is clear, and
    EPA properly enacted regulations following Congress’s
    intent.
    A deeper examination into the enabling statutes of the
    TSCA and RLBPHRA all demonstrate Congress’s clear
    intent: EPA must consider factors beyond health when
    promulgating regulations under Title IV. To begin, § 2683
    provides EPA the authority to set the lead-based paint hazard
    levels, and the related statutes provide EPA with the factors
    it may consider in setting those levels.
    1. § 2683
    Section 2683 mandates that EPA “promulgate regulations
    which shall identify, for purposes of [Title IV] and [Title X],
    lead-based paint hazards, lead-contaminated dust, and lead-
    contaminated soil.”
    Id. (emphasis added). Put
    simply, EPA
    was required to identify “lead-based paint hazards” in order
    administer the TSCA and RLBPHRA. The language of
    § 2683 does not limit EPA’s discretion in identification of the
    hazards. For certain, nothing in § 2683 itself limits EPA’s
    discretion to consider only adverse heath factors in
    identifying the hazards. To the contrary, “when Congress
    does not say how to take costs [or other nonrisk factors] into
    account, agencies have broad discretion to make that
    judgment.” Michigan v. EPA, 
    576 U.S. 743
    , 785 (2015)
    A COMMUNITY VOICE V. USEPA                           33
    (Kagan, J., dissenting). “Far more than courts, agencies have
    the expertise and experience necessary to design regulatory
    processes suited to ‘a technical and complex arena.’”
    Id. (quoting Chevron, 467
    U.S. at 863). In carrying out the
    Congressional mandate of § 2683, EPA has used its expertise
    and experience to establish appropriate levels of lead-based
    paint hazards that take into account Congress’s goal of risk
    reduction but also considering barriers to implementing those
    standards and prioritized protection.
    The majority reads the statute and (out of thin air) limits
    the definitions of “lead-based paint hazard,” “lead-
    contaminated dust,” and “lead-contaminated soil” to conclude
    that EPA’s discretion was limited to considering only health
    effects when it promulgated the regulations under § 2683.
    Maj. Op. 15–17.           This interpretation violates the
    “fundamental canon of statutory construction”: “the words of
    a statute must be read in their context and with a view to their
    place in the overall statutory scheme.” King v. Burwell,
    
    576 U.S. 473
    , 492 (2015) (quoting Util. Air Regulatory Grp.
    v. EPA, 
    573 U.S. 302
    , 320 (2014)). The definitions (upon
    which the majority relies) do not statutorily foreclose EPA
    from considering nonrisk factors in promulgating regulations
    under § 2683. To the contrary, § 2683 is silent with regard to
    this issue.3 However, the statutory scheme and the specific
    language of related statutes all lead to EPA having discretion
    to set levels with consideration of all factors, including
    nonrisk factors.
    3
    Even if interpretation of § 2683 and § 2681 were read in isolation,
    “the statute is silent or ambiguous as to the issue at hand.” Alaska
    Wilderness League v. Jewell, 
    788 F.3d 1212
    , 1218 (9th Cir. 2015). Thus,
    we would then have to “defer to the agency’s reading so long as its
    interpretation is a reasonable one.”
    Id. 34
               A COMMUNITY VOICE V. USEPA
    2. § 2601(c)
    The Sixth Circuit correctly determined that the “TSCA
    was enacted with the Congressional intent that EPA be
    permitted to ‘carry out this chapter in a reasonable and
    prudent manner and . . . consider the environmental,
    economic, and social impact of any action’ it takes or intends
    to take.” Lockett v. United States, 
    938 F.2d 630
    , 636 (6th Cir.
    1991) (alteration in the original) (quoting 15 U.S.C.
    § 2601(c)). Thus, Congress mandated that EPA identify
    “dangerous levels of lead,” taking into consideration both
    health and nonrisk factors in its proposed regulations, which
    EPA properly did. See 15 U.S.C. §§ 2601(c), 2683.
    Other sister circuits have similarly concluded that
    § 2601(c) applies to EPA’s promulgation of regulations under
    the TSCA. See Nat’l Ass’n of Home Builders v. EPA,
    
    682 F.3d 1032
    , 1039 (D.C. Cir. 2012); Corrosion Proof
    Fittings v. EPA, 
    947 F.2d 1201
    , 1222 (5th Cir. 1991); Chem.
    Mfrs. Ass’n v. EPA, 
    899 F.2d 344
    , 348 n.5 (5th Cir. 1990);
    Ausimont U.S.A. Inc. v. EPA, 
    838 F.2d 93
    , 95 (3d Cir. 1988).
    Importantly, the D.C. Circuit applied § 2601(c) to Title IV,
    specifically in relation to § 2682. It noted:
    The TSCA was passed in 1976 with the
    following preface: “It is the intent of Congress
    that the Administrator shall carry out this
    chapter in a reasonable and prudent manner,
    and that the Administrator shall consider the
    environmental, economic, and social impact
    of any action the Administrator takes or
    proposes to take under this chapter.”
    15 U.S.C. § 2601(c) (emphasis added).
    Although the TSCA thus “expressly requires
    A COMMUNITY VOICE V. USEPA                    35
    the Administrator to consider” the “economic
    consequences” of action taken under the Act,
    Envtl. Def. Fund v. EPA, 
    636 F.2d 1267
    , 1276
    (D.C. Cir. 1980), this does not mean that the
    regulation’s benefits must outweigh its costs.
    Nat’l Ass’n of Home 
    Builders, 682 F.3d at 1039
    . The D.C.
    Circuit recognized that § 2682(a)(1) also required that the
    promulgated “regulations shall contain standards for
    performing lead-based paint activities, taking into account
    reliability, effectiveness, and safety.”
    Id. (“Indeed, when Congress
    amended the TSCA in 1992 to authorize regulations
    addressing lead-paint hazards, it instructed EPA to “tak[e]
    into account reliability, effectiveness, and safety”—but did
    not mention cost.”). Accordingly, the court concluded that
    this additional language did not alter EPA’s duty to take costs
    into consideration nor did it require EPA conduct a cost-
    benefit analysis.
    Id. at
    1039–40. 
    Here, by contrast, § 2683
    does not mention any of the § 2601(c) factors, nor does it
    contain any limiting language that would alter § 2601(c)’s
    mandate.        Further, § 2681(10) does not mention
    “environmental, economic, and social impact[s],” thus, EPA’s
    duty to consider these factors remain. See Nat’l Ass’n of
    Home 
    Builders, 682 F.3d at 1039
    . As our sister circuits all
    have concluded, the language of § 2601 is clear and applies
    to the promulgation of regulations under Chapter 53, which
    includes § 2683.
    Congress’s mandate that § 2601(c) is applied throughout
    Chapter 53 is clear and unambiguous. Nowhere in either
    Title IV or Title X is there any language limiting EPA to
    consider only health-risk factors in promulgating regulations
    under § 2683. Although the definition sections reference
    health effects for purposes of defining the term, they do not
    36            A COMMUNITY VOICE V. USEPA
    preclude EPA from using its discretion in setting hazardous
    levels in consideration of § 2601(c). To the contrary, if that
    were the case, then EPA would seemingly have to set all of
    the clearance levels at 0 µg/ft2, because there is no safe level
    of lead exposure. Cf. 42 U.S.C. § 300g-1, 40 C.F.R. § 141.51
    (setting maximum contaminant level goal for lead at zero).
    Further, if Congress wanted to limit EPA’s consideration
    of nonrisk factors, it could have excluded environmental,
    economic, and social impacts from EPA’s consideration. See,
    e.g., § 2605(b)(4) (conducting risk evaluations “without
    consideration of cost or other nonrisk factors”). However,
    Congress chose not to limit EPA’s consideration of § 2601(c)
    factors in either § 2681(10) or § 2683. Thus, we must give
    effect to Congress’s clear intent for EPA to consider both
    health and nonrisk factors. See Russello v. United States,
    
    464 U.S. 16
    , 23 (1983) (“[W]here Congress includes
    particular language in one section of a statute but omits it in
    another section of the same Act, it is generally presumed that
    Congress acts intentionally and purposely in the disparate
    inclusion or exclusion.” (citation omitted)).
    The majority mistakenly disregards § 2601(c) in the
    interpretation of Title IV without explanation. See Setser v.
    United States, 
    566 U.S. 231
    , 239 (2012). Its clear statement
    of intent should be used “to assist in ascertaining the intent
    and meaning of a statute fairly susceptible of different
    constructions.” Price v. Forrest, 
    173 U.S. 410
    , 427 (1899);
    see also Antonin Scalia & Bryan A. Garner, Reading Law:
    The Interpretation of Legal Texts 218 (2012) (explaining that
    “[i]f a prologue is indeed an appropriate guide to meaning, it
    ought to be considered along with all other factors in
    determining whether the instrument is clear. The factors
    A COMMUNITY VOICE V. USEPA                             37
    undermining its reliability affect its weight, not its
    relevance”).
    Petitioners’ challenges to the application to § 2601 to
    § 2683 have no merit. First, Petitioners argue that 2601(c)
    “refers only to the cradle-to-grave regulation of ‘chemical
    substances and mixtures’ in commerce—the subject of TSCA
    Title I.” This argument fails to explain why Congress used
    the phrase “this chapter” rather than “this subchapter” if it
    meant to limit § 2601(c) to Title I. See Foxgord v.
    Hischemoeller, 
    820 F.2d 1030
    , 1032 (9th Cir. 1987) (“It is a
    maxim of statutory construction that unless otherwise
    defined, words should be given their ordinary, common
    meaning.”). Additionally, other sections of Title I apply
    throughout the entire chapter. Petitioners do not explain why
    § 2601 would apply differently than (a) § 2627, implementing
    state programs; (b) § 2618, judicial review (which we invoke
    here); or (c) § 2620, allowing a citizen petition (which was
    used by Petitioners to get here in the first place).
    Second, Petitioners cite to Charter Township of Van
    Buren v. Adamkus, 
    10 F. Supp. 2d 766
    , 770 (E.D. Mich.
    1998), for the proposition that § 2601(c) is “not an operative
    section.”4 Unlike the “findings” and “policy” provisions in
    § 2601 addressed there, this statement of Congressional intent
    “create[s] an enforceable mandate for some additional
    4
    Assuming that this decision does not conflict with 
    Lockett, 938 F.2d at 636
    , “[l]egislative history cannot trump the statute.” Bonneville Power
    Admin. v. FERC, 
    422 F.3d 908
    , 920 (9th Cir. 2005). Further, the
    legislative history does states that this “section of the bill is not an
    operative section,” however, it further states that “the intent of Congress
    as stated in this subsection should guide each action the Administrator
    takes under other sections of the bill.” S. Rep. 94-698, at 14 (1976),
    reprinted in 1976 U.S.C.C.A.N. 4491, 4504.
    38              A COMMUNITY VOICE V. USEPA
    procedural step.”5 Bear Valley Mut. Water Co. v. Jewell,
    
    790 F.3d 977
    , 987 (9th Cir. 2015) (citation omitted); see also
    Fogleman v. Mercy Hosp., Inc., 
    283 F.3d 561
    , 569 (3d Cir.
    2002) (“[W]e generally assume that the best evidence of
    Congress’s intent is what it says in the texts of the statutes.”).
    Finally, Petitioners argue that § 2605(b)(4) and
    § 2605(c)(2) allow EPA to ignore § 2601(c) and only
    consider health factors. Although § 2605(b)(4) requires EPA
    to conduct “risk evaluations” “without consideration of costs
    or other nonrisk factors,” § 2605(c)(2)(A) requires EPA to
    “consider and publish a statement” with respect to the health,
    environment, and nonrisk factors in “proposing and
    promulgating a rule.” See also § 2605(c)(2)(B) (“In selecting
    among prohibitions and other restrictions, the Administrator
    shall factor in, to the extent practicable, the considerations
    under subparagraph (A) in accordance with subsection (a).”).
    Thus, these sections do not support Petitioners’ argument that
    § 2601 does not apply.6
    5
    The majority does not address the application of § 2601(c) to
    Title IV. The majority undoubtably would not assert that § 2601(c) is
    non-operative, because the majority itself (now and previously) relies
    upon the non-operative statutes, 42 U.S.C. §§ 4851 (findings), 4851a
    (purposes), to determine Congress’s intent. See In re A Cmty. Voice,
    
    878 F.3d 779
    , 784 (9th Cir. 2017); see also Maj. Op. at 12, 15, 23.
    6
    Petitioners argued at oral argument that § 2601(c) did not apply to
    § 2683, and that National Association of Home Builders was
    distinguishable because (1) the court found that it did not have to rely
    solely upon a cost-benefit analysis in promulgating its regulations and
    (2) § 2682 was distinguishable from § 2683, because § 2682 allowed EPA
    to take into consideration “reliability, effectiveness, and safety.” These
    arguments fail. First, the D.C.’s Circuit’s conclusion that EPA need not
    conduct a cost-benefit analysis does not mean that EPA cannot consider,
    in a “reasonable and prudent manner,” “the environmental, economic, and
    A COMMUNITY VOICE V. USEPA                            39
    3. § 2681(10)
    Section 2681(10) establishes that EPA also has discretion
    in setting a standard that “would result in adverse health
    effects.” We start with the statutory language:
    The term “lead-based paint hazard” means
    any condition that causes exposure to lead
    from lead-contaminated dust, lead-
    contaminated soil, lead-contaminated paint
    that is deteriorated or present in accessible
    surfaces, friction surfaces, or impact surfaces
    that would result in adverse human health
    effects as established by the Administrator
    under this subchapter.
    15 U.S.C. § 2681(10) (emphasis added). When “a list of
    terms or phrases [are] followed by a limiting clause,” we
    generally apply the “rule of last antecedent.” Lockhart v.
    United States, 
    136 S. Ct. 958
    , 962 (2016). “The rule reflects
    the basic intuition that when a modifier appears at the end of
    a list, it is easier to apply that modifier only to the item
    directly before it.”
    Id. at
    963. 
    Thus, applying the rule here
    the clause would only modify “would result in adverse human
    health effects.” See
    id. at 962–63.
    It is then clear that
    Congress intended EPA to exercise its discretion in setting
    hazard standards, and that discretion included a level of
    certainty that adverse human health effects would occur. See
    social impact” of its proposed regulations. See Nat’l Ass’n of Home
    
    Builders, 682 F.3d at 1039
    (quoting 15 U.S.C. § 2601(c)). Second, the
    fact that § 2682 allowed EPA to consider other discretionary factors, does
    not alter how § 2601(c) should apply equally to “any action” taken under
    Title IV of the TSCA. See § 2601(c) (emphasis added).
    40              A COMMUNITY VOICE V. USEPA
    Nat’l R.R. Passenger Corp. v. Bos. & Maine Corp., 
    503 U.S. 407
    , 417 (1992) (“Judicial deference to reasonable
    interpretations by an agency of a statute that it administers is
    a dominant, well-settled principle of federal law.”).
    The majority mistakenly asserts that § 2681(10) “requires
    the EPA to identify ‘any condition’ of lead in dust, paint, and
    soil resulting in adverse human health effects.” Maj. Op. 10
    (emphasis added). In order to reach this conclusion, the
    majority improperly applies the rule of last antecedent to
    conclude that “as established by” EPA modifies “any
    condition.” Then, the majority uses Congress’s goal “to
    develop a national strategy to build the infrastructure
    necessary to eliminate lead-based paint hazards in all housing
    as expeditiously as possible,” 42 U.S.C. § 4851a(1), as the
    basis to conclude that “[t]he natural reading is that the
    delegation to the EPA is to establish the conditions that cause
    harm, not what constitutes harm,” Maj. Op. 15. However,
    Congress’s stated goal to “eliminate lead-based pain hazards”
    does not overcome the rule of the last antecedent.7 Although
    “the rule of the last antecedent ‘is not an absolute and can
    assuredly be overcome by other indicia of meaning,’” it
    should not be “a heavy lift to carry the modifier across” the
    7
    The majority interprets § 2681(10) based on Congress’s stated
    purposes. See Maj. Op. 15 (citing 42 U.S.C. § 4851a(1)). However,
    Congress’s stated goals should not be used to justify ignoring clear
    congressional intent and imposing unmandated requirements on the
    agency. See Nat’l Wildlife Fed’n v. Gorsuch, 
    693 F.2d 156
    , 178 (D.C.
    Cir. 1982) ([I]t is one thing for Congress to announce a grand goal, and
    quite another for it to mandate full implementation of that goal.”).
    Further, Congress understood that to reach the goal of lead-based-paint-
    hazard elimination in all housing, development of the “most promising,
    cost-effective methods for evaluating and reducing lead-based paint
    hazards” was necessary. § 4851a(5).
    A COMMUNITY VOICE V. USEPA                             41
    “individual entries in the list.” See 
    Lockhart, 136 S. Ct. at 963
    (quoting Barnhart v. Thomas, 
    540 U.S. 20
    , 26 (2003)).
    The majority’s reading is not only a “heavy lift,” it also
    ignores other indicia of meaning within the statutory scheme
    (as discussed), supporting EPA’s discretion to identify what
    constitutes harm.
    To further support application of the “rule of the last
    antecedent” to § 2681(10), the definitions of lead-
    contaminated dust and lead-contaminated soil contain similar
    modifiers and are interpreted in this same manner. First,
    “lead-contaminated dust” is “surface dust in residential
    dwellings that contains an area or mass concentration of lead
    in excess of levels determined by the Administrator under this
    subchapter to pose a threat of adverse health effects in
    pregnant women or young children.” § 2681(11) (emphasis
    added). Second, “lead-contaminated soil” is “bare soil on
    residential real property that contains lead at or in excess of
    the levels determined to be hazardous to human health by the
    Administrator under this subchapter.” § 2681(12) (emphasis
    added).
    The majority does not try to reconcile the application of
    the modifier in the sections. The majority provides no
    reasonable explanation why § 2681(10) should not be
    similarly interpreted by the rule of last antecedent.8
    8
    Further complicating the application of these definitions is
    Congress’s inclusion of three different standards for EPA to consider in
    determining the safe levels of lead—(1) “would result in adverse human
    health effects,” § 2681(10); (2) “pose a threat of adverse health effects in
    pregnant women or young children,” § 2681(11); and (3) “determined to
    be hazardous to human health,” § 2681(12). The definition of “lead-based
    paint hazard” includes lead-contaminated paint, lead-contaminated dust,
    and lead-contaminated soil. The majority ignores the fact that there are
    42               A COMMUNITY VOICE V. USEPA
    Interpreting § 2681(10) (as Congress intended) makes it clear
    that EPA was given discretion to determine the levels that
    “would result in adverse human health effects.”9 And (as
    previously noted) Congress did not intend nor did it require
    that EPA set the level at zero; rather, it allowed EPA, based
    on its expertise, to determine levels based on “environmental,
    economic, and social impact.”10 See § 2601(c).
    three different standards (including references to “human health” versus
    “pregnant women or young children”), referencing instead that the
    standard is a “danger to human health” or a “hazard to human health.”
    See, e.g., Maj. Op. 14. Given that the statute is ambiguous with regard to
    how EPA should assess the human health effects when promulgating the
    regulations, EPA should be given discretion. 
    Chevron, 467 U.S. at 843
    .
    9
    Congress use of the word “would” is also telling and suggests some
    certainty of harm. By contrast, Congress has required the administrator
    consider pollutants that present “a threat of adverse health effects.” See
    42 U.S.C. § 7412(b)(2). Thus, here, Congress chose not to require EPA
    set standards with lower levels of certainty.
    10
    The majority claims that the “current dust-lead hazard standards,
    lead-based paint definition, and soil-lead hazard standards do not identify
    all levels of lead that lead to adverse health effects.” Maj. Op. 7. It is not
    clear how the majority or Petitioners want EPA to determine the “safe”
    levels. EPA set the new standards to the levels originally requested by the
    Petitioners. Yet now, Petitioners assert it is too high, arguing (contrary to
    their 2009 Petition) that they effectively were not aware that there was no
    safe level of lead exposure until the CDC’s 2012 report. Petitioners also
    point out that a 5 µg/ft2 of dust on floors and 40 µg/ft2 on windowsills
    (“5/40 Standards”) would still result in 2.5 percent of children developing
    a blood lead level above 5 µg/dL. Given that there is no safe level of lead
    exposure, it seems that EPA has few options in setting a standard that
    would be or will be acceptable to the majority and Petitioners.
    A COMMUNITY VOICE V. USEPA                             43
    4. § 2682(a)(1) & § 2685(a)
    The application of both §§ 2682 and 2685 affirm that
    Congress intended EPA to consider nonrisk factors in
    promulgating § 2683. As noted above, Congress required
    EPA to set standards for dangerous levels of lead for purposes
    of implementing Title IV and Title X. In enacting lead-based
    paint activities, § 2682, and state programs, § 2685, Congress
    did not allow EPA to set separate lead-contaminated dust and
    soil levels. Rather, Congress mandated that EPA “shall
    conduct a comprehensive program to promote safe, effective,
    and affordable monitoring, detection, and abatement of lead-
    based paint and other lead exposure hazards,” § 2685(a), and
    it should “tak[e] into account [the] reliability, effectiveness,
    and safety” in drafting regulations “for performing lead-based
    paint activities,” § 2682(a)(1).
    Section 2682 requires EPA set forth regulations “in
    consultation with the Secretary of Labor, the Secretary of
    Housing and Urban Development, and the Secretary of
    Health and Human Services”11 governing the training,
    accreditation, and certification of persons engaged in lead-
    based activities.    Lead-based paint activities include
    “activities conducted by a person who offers to eliminate
    lead-based paint[12] or lead-based paint hazards or to plan
    such activities.” § 2682(b) (emphasis added). Congress
    11
    Consultation with other affected agencies is also required under
    42 U.S.C. § 4842. Congress’s intent that the agencies work together in
    “carrying out their respective authorities” supports a conclusion that
    Congress gave discretion to the agencies to determine the proper lead-
    based paint hazard levels.
    12
    Congress does not treat lead-based paint as a “hazard” until it has
    “deteriorated.” § 2681(9), (10).
    44            A COMMUNITY VOICE V. USEPA
    requires that the regulations “contain standards for
    performing lead-based paint activities, taking into account
    reliability, effectiveness, and safety.” § 2682(a)(1), (b)(1)
    (emphasis added). The standards for risk assessment,
    inspection, and abatement in target housing or deleading in
    pre-1978 structures cannot be done reliably or effectively if
    the underlying lead-based paint hazards levels are set so low
    that they are neither technologically feasible nor achievable.
    Similarly, § 2685 requires EPA to create a program to
    promote lead exposure abatement, which includes “safe,
    effective, and affordable monitoring, detection, and
    abatement” of lead-based paint hazards. It further requires
    EPA to also establish protocols for the “minimum
    performance standards of laboratory analysis.” As with
    § 2682(a)(1), lead-based paint hazard levels (that are set
    based solely on health risks) could preclude the ability to
    create safe, effective, and affordable monitoring and detection
    of lead-based paint hazards.
    5. § 2681(9) & 42 U.S.C. § 4822(c)
    The definition of lead-based paint further confirms
    Congress’s intent that EPA to consider nonrisk factors in
    setting lead-based paint hazards. This principle was
    emphasized in Congress’s recognition that its definition of
    lead-based paint should not be lowered by HUD if the testing
    were not feasible or the medical evidence did not support it.
    See 42 U.S.C. § 4822(c) (“The Secretary shall periodically
    review and reduce the level below 1.0 milligram per
    centimeter squared or 0.5 percent by weight to the extent that
    reliable technology makes feasible the detection of a lower
    level and medical evidence supports the imposition of a lower
    level.”).
    A COMMUNITY VOICE V. USEPA                             45
    In adopting § 2681(9), Congress provided three options
    for defining lead-based paint: (1) the initial threshold level for
    all “paint or other surface coatings that contain lead in excess
    of 1.0 milligrams per centimeter squared or 0.5 percent by
    weight” as established by Congress; (2) the established
    threshold level for “paint or other surface coatings on target
    housing,”13 or a lower level to be established by HUD under
    42 U.S.C. § 4822(c); or (3) the established threshold level for
    “any other paint or surface coatings” outside of target
    housing, or some “other level” to be established by EPA.14
    § 2681(9). There is no language to mandate how EPA would
    set this “other level.” However, it would be nonsensical to
    suggest that EPA and HUD (who are mandated to work
    together in setting levels, see 42 U.S.C. § 4853a) would be
    required to establish the level based on different criteria.15
    13
    “The term ‘target housing’ means any housing constructed prior to
    1978, except housing for the elderly or persons with disabilities or any 0-
    bedroom dwelling (unless any child who is less than 6 years of age resides
    or is expected to reside in such housing). In the case of jurisdictions
    which banned the sale or use of lead-based paint prior to 1978, the
    Secretary of Housing and Urban Development, at the Secretary’s
    discretion, may designate an earlier date.” 15 U.S.C. § 2681(17);
    42 U.S.C. § 4851b(27).
    14
    If Congress wanted to change the lead-based paint definition in the
    TSCA and RLBPHRA, it could have. In fact, in 2008, Congress
    implemented a change to the “limit for lead in paint” under the Federal
    Hazardous Substances Act to no more than “.0009 percent.” 15 U.S.C.
    § 1278a(f)(1). Congress also allowed the Commission to lower the limits
    if feasible.
    Id. at
    § 1278a(f)(2).
    15
    Further evidence that Congress did not intend EPA and HUD to
    have different levels is the definition of “Inspection,” which means in part
    “a surface-by-surface investigation to determine the presence of lead-
    based paint, as provided in section 4822(c) of Title 42.” This definition
    is the same for both 15 U.S.C. § 2681(7) and 42 U.S.C. § 4851b(12).
    46            A COMMUNITY VOICE V. USEPA
    See Chubb Custom Ins. 
    Co., 710 F.3d at 958
    (explaining that
    we are “cautioned against following a literal interpretation of
    a statute that would thwart the overall statutory scheme or
    lead to an absurd result”).
    “Statutory construction is a ‘holistic endeavor,’” requiring
    us to “look not only to the ‘particular statutory language at
    issue’ but also to ‘the language and design of the statute as a
    whole.’” In re DBSI, 
    Inc., 869 F.3d at 1010
    (citations
    omitted). For the successful implementation of Title IV and
    Title X, §§ 2601(c), 2681(9), (10), 2682(a)(1), 2683, 2685(a),
    and 42 U.S.C. § 4822(c) all establish that lead-based paint
    hazards must consider factors other than health. To conclude
    otherwise would ignore clear Congressional intent and further
    lead to absurd results.
    C. A comparison with the Clean Air Act does not alter
    this analysis.
    The majority mistakenly tries to support its statutory
    interpretation by citing Whitman v. American Trucking
    Associations, 
    531 U.S. 457
    (2001). In particular, the majority
    argues that Clean Air Act’s statutory “pattern” is the same as
    that found in Title IV, arguing that § 2682(a)(1) “address[es]
    how the standards should be implemented and expressly
    take[s] into account practical considerations,” and that
    § 2681(10) “deals only with identifying hazards.” Maj. Op.
    16–17. However, Whitman’s analysis of the Clean Air
    Act does not control our analysis for these reasons.
    Whitman involved a provision in the Clean Air Act that
    required EPA to set ambient air quality 
    standards. 531 U.S. at 465
    –67. The Supreme Court concluded that statutory
    language mandating EPA to set the standards at levels to
    A COMMUNITY VOICE V. USEPA                     47
    protect public health and welfare with “an adequate margin
    of safety,” did not allow EPA to consider the costs of setting
    the standards.
    Id. at
    465 (quoting 42 U.S.C. § 7409(b)(1)).
    The Supreme Court found the statutory language “absolute.”
    Id. It explained that
    the language of the statute required
    “[t]he EPA, ‘based on’ the information about health effects
    contained in the technical ‘criteria’ documents compiled
    under § 108(a)(2), 42 U.S.C. § 7408(a)(2), . . . to identify the
    maximum airborne concentration of a pollutant that the
    public health can tolerate, decrease the concentration to
    provide an ‘adequate’ margin of safety, and set the standard
    at that level.”
    Id. The Supreme Court
    recognized that,
    because costs were “so indirectly related to public health and
    so full of potential for canceling the conclusions drawn from
    direct health effects,” Congress would have mentioned costs
    if they were to be included.
    Id. at
    469. Additionally,
    “[a]ttainability and technological feasibility [were] not
    relevant considerations in the promulgation of national
    ambient air quality standards.” Am. Petroleum Inst. v. Costle,
    
    665 F.2d 1176
    , 1185 (D.C. Cir. 1981), see
    id. at 1190
    (“[T]he
    question of attainability is not relevant to the setting of
    ambient air quality standards under the Clean Air Act.”).
    Title IV of the TSCA is not similar to the Clean Air Act.
    First, § 7409 is a promulgation statute; § 2681 is not. Second,
    unlike the Clean Air Act, Congress did not make any
    provisions within Title IV or Title X to address
    implementation, including a wavier to comply with the levels
    set by § 2683. See 
    Whitman, 531 U.S. at 466
    . Rather, in the
    Clean Air Act, Congress commissioned a cost study and
    provided for the costs of achievement in its enactment.
    Id. Notably, Congress allowed
    EPA “to waive the compliance
    deadline for statutory sources” and allowed costs be
    considered “in implementing the air quality standards.”
    Id. 48
                 A COMMUNITY VOICE V. USEPA
    at 466–67. Third, nothing in Title IV or Title X suggests that
    Congress wanted EPA to set non-achievable “goal” standards
    in enacting lead-based paint hazards. Finally, § 2601(c)
    “show[s] a textual commitment of authority to EPA to
    consider [environmental, economic, and social impacts] in
    [identifying dangerous levels of lead for implementation
    under § 2683].”
    Id. at
    468. Section 2601(c) is neither written
    in “vague terms” nor is it an “ancillary provision[].”
    Id. To be sure,
    one cannot say that § 2601(c) (a part of the TSCA)
    was an “elephant[] in [a] mousehole[].”
    Id. Unlike the Clean
    Air Act, the “lead-based paint activities”
    statute does not assign EPA or any other entity the ability to
    develop implementation plans for § 2683. See 15 U.S.C.
    § 2682. Rather, Congress mandated that EPA ensure that
    persons involved in the risk assessment, inspection, or
    abatement of lead-based paint hazards had the proper training
    and certifications. § 2682(a)(1). Nothing in § 2682 allows
    EPA to set lesser standards for lead-based paint hazards in the
    context of abatement.
    The majority argues that § 2682 is a similarly situated
    implementation statute, because it gives EPA latitude to
    consider “reliability, effectiveness, and safety” in “remedial
    measures.” Maj. Op. 25–27. Thus, the majority concludes
    that § 2862 gives EPA discretion to determine post-abatement
    clearance levels that take into account nonrisk factors.16 This
    16
    Nowhere in Title IV or Title X does Congress suggest that EPA can
    enact regulations allowing for less protective “clearance levels” in the
    course of abatement activities. To the contrary, the only reference to
    “clearance levels” is contained within the definition of abatement. See
    § 2681(1)(B) (“[A]ll preparation, cleanup, disposal, and postabatement
    clearance testing activities associated with such measures [to permanently
    eliminate lead-based paint hazards.]”).
    A COMMUNITY VOICE V. USEPA                            49
    conclusion can only be reached, based on a faulty reading of
    the statute.17 Starting with the definition of lead-based paint
    activities, it is unclear how the majority concludes that this
    section allows for different implementation standards. Lead-
    based paint activities are defined as:
    (1) in the case of target housing, risk
    assessment, inspection, and abatement; and
    (2) in the case of any public building
    constructed before 1978, commercial
    building, bridge, or other structure or
    superstructure, identification of lead-based
    paint and materials containing lead-based
    paint, deleading, removal of lead from
    bridges, and demolition.
    § 2682(b).
    It is these activities for which EPA should create
    “standards for performing” that “tak[e] into account
    reliability, effectiveness, and safety.” § 2682(1). Despite the
    majority’s suggestion otherwise, this section is not limited to
    the “implementation of remedial measures” (i.e., abatement).
    Maj. Op. 26. To be sure, not all lead-based activities are
    “remedial” in nature. First, “risk assessment” is an
    “investigation to determine and report the existence, nature,
    17
    This conclusion that clearance levels could be higher than the
    DLHS does not seem to be a position advocated by Petitioners. To be
    sure, Petitioners argued that EPA’s failure to revise the clearance levels
    was not a “permissible construction” of Title IV, “because it renders the
    newly adopted DLHS meaningless as homes will pass clearance even if
    post-abatement dust-lead is at levels considered hazardous.”
    50             A COMMUNITY VOICE V. USEPA
    severity and location of lead-based paint hazards in
    residential dwellings.” § 2681(16) (emphasis added).
    Second, “inspection,” is “a surface-by-surface investigation
    to determine the presence of lead-based paint.” § 2681(7).
    Both risk assessment and inspections provide information on
    what, if any, actions may be taken to manage the existence of
    lead-based paint or lead-based paint hazards.
    If either lead-based paint or lead-based paint hazards
    exist, abatement and deleading are possible remedial
    measures that may be taken. “Abatement” is “any set of
    measures designed to permanently eliminate lead-based paint
    hazards in accordance with standards established by the
    Administrator.”     § 2681(1) (emphasis added). And
    “deleading” includes “activities conducted by a person who
    offers to eliminate lead-based paint or lead-based paint
    hazards or to plan such activities.” § 2682(b). Notably, the
    goals of abatement and deleading are only elimination not
    reduction of lead-based paint hazards.18
    The majority argues that, under § 2682, EPA can set
    different (perhaps higher) clearance levels for lead-based
    paint hazards because it can consider nonrisk factors. See
    Maj. Op. 26 (“[T]he EPA has more discretion in setting the
    clearance levels because they concern implementation of
    remedial measures, rather than identification of a hazard.”).
    Without citation to any authority, the majority interprets
    “clearance levels” effectively to be a “waiver” of compliance
    18
    “The term ‘reduction’ means measures designed to reduce or
    eliminate human exposure to lead-based paint hazards through methods
    including interim controls and abatement.” § 2681(13). Interim controls
    are “designed to reduce temporarily human exposure or likely exposure
    to lead-based paint hazards.” § 2681(8).
    A COMMUNITY VOICE V. USEPA                             51
    with the DLHS. However, EPA defines clearance levels as
    “the maximum amount of lead permitted in dust on a surface
    following completion of an abatement activity.” 40 C.F.R.
    § 745.223 (2020) (emphasis added). Again, abatement is
    designed “to permanently eliminate lead-based paint hazards”
    not merely reduce them. § 2681(1). Thus, applying the
    majority’s interpretation would create a “never ending loop,”
    wherein lead-based paint hazards may never be eliminated.
    For example, federally owned pre-1960 target housing
    “require[s] the inspection and abatement of lead-based paint
    hazards.” 42 U.S.C. § 4822(a)(3)(A) (emphasis added). If
    lead-based paint hazards are set to identification levels at
    10 µg/ft but implementation (clearance levels) are set at
    40 µg/ft, abatement (i.e., permanent elimination) of lead-
    based paint hazards could not be achieved. In other words,
    the clearance level would suggest the abatement was
    successful,19 yet lead-based paint hazards would still exist,
    precluding compliance with § 4288(a)(3)(A). The majority’s
    interpretation would create an absurd result, allowing
    abatement of lead-based paint or lead-based paint hazards to
    result in higher levels of exposure.
    The Resource Conservation and Recovery Act (“RCRA”)
    also does not support the majority’s reading. Congress
    instructed EPA to designate facilities as either “sanitary
    landfills” or “open dumps.” 42 U.S.C. § 6944(a). Congress
    provided that a facility may only be classified as a “sanitary
    19
    In setting the current clearance levels, EPA recognized that “[t]he
    DLHS are used to identify dust-lead hazards and the [clearance levels] are
    used to demonstrate that specific abatement activities have effectively and
    permanently eliminated those hazards.” Review of Dust-Lead Post-
    Abatement Clearance Levels, 85 Fed. Reg. 37810-01, *37811 (June 24,
    2020).
    52            A COMMUNITY VOICE V. USEPA
    landfill” “if there is no reasonable probability of adverse
    effects on health or the environment from disposal of solid
    waste.”
    Id. (emphasis added). The
    phrase “no reasonable
    probability” was challenged, suggesting that the phrase
    required EPA to consider costs. See Util. Solid Waste
    Activities Grp. v. EPA, 
    901 F.3d 414
    , 448 (D.C. Cir. 2018).
    The D.C. court rejected the argument, because there was no
    authority for EPA to consider costs.
    Id. at
    448–49.
    Again the majority’s reliance on RCRA to support its
    interpretation fails. Unlike the § 6944(a), 15 U.S.C. § 2683
    is silent on how EPA promulgate regulations identifying lead-
    based paint hazards for the administration of Title IV and
    Title X. And nothing in the RCRA suggests that EPA could
    consider other criteria, whereas, the TSCA includes an
    explicit authorization to consider other factors. See 15 U.S.C.
    § 2601(c).
    In summary, EPA is not “rewrit[ing] clear statutory
    terms,” Maj. Op. 19 (quoting Util. Air Regulatory Grp. v.
    EPA, 
    573 U.S. 302
    , 328 (2014)); the majority is. The
    majority refuses to interpret the statute as a whole, instead
    taking statutes out of context in an effort to follow Whitman.
    But “[c]ontext is a primary determinant of meaning.” A.
    Scalia & B. Garner, Reading Law: The Interpretation of
    Legal Texts 167 (2012). “Statutory construction is a ‘holistic
    endeavor,’” requiring us to “look not only to the ‘particular
    statutory language at issue’ but also to ‘the language and
    design of the statute as a whole.’” Zazzali v. United States (In
    re DBSI, Inc.), 
    869 F.3d 1004
    , 1010 (9th Cir. 2017) (citations
    omitted). If the majority considered the statute as a whole,
    instead of cherry picking and misinterpreting sections to help
    support its theory, it would conclude that Congress was clear
    A COMMUNITY VOICE V. USEPA                          53
    when it provided EPA discretion to set the level in
    consideration of both health and nonrisk factors.20
    II. EPA was not required to update soil-lead hazard
    standards.
    In 2018, EPA summarized its proposed rule as follows:
    Addressing childhood lead exposure is a
    priority for EPA. As part of EPA’s efforts to
    reduce childhood lead exposure, EPA
    evaluated the current dust-lead hazard
    standards (DLHS) and the definition of lead-
    based paint (LBP). Based on this evaluation,
    EPA is proposing to lower the DLHS from
    40 µg/ft and 250 µg/ft to 10 µg/ft and
    100 µg/ft on floors and window sills,
    respectively. EPA is proposing no changes to
    the current definition of LBP due to
    insufficient information to support such a
    change.
    Review of the Dust-Lead Hazard Standards and the
    Definition of Lead-Based Paint, 83 Fed. Reg. 30889-01,
    *30889 (July 2, 2018) (footnotes omitted).
    20
    The majority asserts that in 2001, EPA “embraced the
    ‘identification versus implementation’ distinction” in enacting those
    regulations. Maj. Op. 19. Even if this claim were true, EPA has acted
    consistently in enacting the regulations, considering both health and
    nonrisk factors. See Lead; Identification of Dangerous Levels of Lead,
    66 Fed. Reg. 1206-01, *1231–32 (Jan. 5, 2001); see also Lead;
    Identification of Dangerous Levels of Lead, 63 Fed. Reg. 30302-01,
    *30313 (June 3, 1998).
    54            A COMMUNITY VOICE V. USEPA
    The proposed rule did not address soil-lead hazard
    standards. EPA did not specifically request comments on
    soil-lead hazard standards. Instead, EPA requested comments
    with regard to the proposed DLHS and lead-based paint
    definition. See
    id. at *30890, *30895–97,
    * 30899. In
    response to EPA’s request, several commenters requested
    EPA revise the soil-lead hazard standards. EPA then
    responded that the soil-lead hazards standards were “not
    included in the proposed rule and [were] not within the scope
    of the rulemaking.” Additionally EPA explained that soil-
    lead hazard standards required different studies and analyses
    that were separate from DLHS.
    A. The 2017 Writ did not include soil-lead hazard
    standards.
    In this petition for review, Petitioners challenge EPA’s
    final rule entitled “Review of the Dust-Lead Hazard
    Standards and the Definition of Lead-Based Paint.”
    Petitioners argue that this final rule violates the TSCA by not
    updating the soil-lead hazard standards. Petitioners have no
    basis for this argument: (1) Petitioners did not request
    rulemaking for lead-contaminated soil in its 2009 petition.
    (2) The 2017 Writ did not require rulemaking for lead-
    contaminated soil. In granting the 2017 Writ, the majority
    found that EPA had a duty under the APA to engage in
    rulemaking for only dust level hazard standards and the
    definition of lead-based paint (NOT lead-contaminated soil).
    A Cmty. 
    Voice, 878 F.3d at 785
    . (3) Petitioners have the
    burden of showing that the agency action was “arbitrary,
    capricious, an abuse of discretion, or otherwise not in
    accordance with law.” 5 U.S.C. § 706(2)(A). Because
    rulemaking for lead-contaminated soil was not part of the
    2009 petition nor required by our court’s 2017 Writ, EPA’s
    A COMMUNITY VOICE V. USEPA                            55
    decision not to address lead-contaminated soil in the 2019
    rulemaking (even with an “ongoing duty”21) was neither
    arbitrary nor capricious.22 See Compassion Over Killing v.
    U.S. Food & Drug Admin., 
    849 F.3d 849
    , 854 (9th Cir. 2017)
    (“When an agency refuses to exercise its discretion to
    promulgate proposed regulations, the Court’s review is
    extremely limited and highly deferential.” (internal quotation
    marks omitted) (quoting Massachusetts v. EPA, 
    549 U.S. 497
    , 527–28 (2007))). EPA was well within its discretion to
    limit the 2019 rulemaking to “fully respond to Petitioners’
    rulemaking petition” as directed by this court, which did not
    include soil-lead hazards standards.
    Neither Petitioners nor the majority explain why EPA’s
    decision not to include soil-lead hazards standards in its 2019
    rulemaking violated the TSCA. Petitioners do not claim the
    soil-lead hazard standards were within the scope of the
    rulemaking. Instead, they assert EPA provided “no
    timetable” for when it would conduct analyses and assert that
    EPA had an obligation to address the comments to the
    rulemaking even if they were “outside the scope.” Neither of
    these arguments establish that EPA’s decision was arbitrary
    or capricious. The majority asserts that EPA violated its
    “statutory obligations” in enacting the final rule, because it
    21
    The majority concluded in A Community Voice that § 2687
    mandated that EPA has an “ongoing duty” to amend the 
    regulations. 878 F.3d at 784
    . Although I am bound by that decision, I continue to
    disagree that § 2687 mandates any action.
    22
    Congress did not mandate any statutory deadline for revising
    regulations, leaving in EPA’s discretion to amend the regulations “from
    time to time as necessary.” § 2687. Because EPA has discretion to
    determine the acceptable levels, the fact that EPA’s prior levels were set
    in 2001 does not clearly require EPA to revisit the current levels.
    56            A COMMUNITY VOICE V. USEPA
    has an “‘ongoing’ duty to update standards.” Maj. Op. 24.
    However, a statutory obligation to update the soil-lead hazard
    standards does not require EPA to address the soil standards
    in the 2019 rulemaking. The majority cannot explain why
    EPA was required to include soil-lead hazard standards in this
    rule. As a result, it ignores the standard of review and
    concludes that EPA violated the TSCA, because the lead-
    contaminated soil levels are too high, based solely on passage
    of time and its determination that “there is no safe level of
    lead in blood.”
    Id. It is important
    to note that the majority does not conclude
    that EPA violated the 2017 Writ or that EPA was arbitrary
    and capricious for not including soil-lead hazard standards in
    the rulemaking. Rather, the majority jumps to the conclusion
    that EPA violated the TSCA.
    Id. at
    26. Remember, the
    petition before us only challenges the 2019 rulemaking,
    limiting our jurisdiction. See 15 U.S.C. § 2618(a)(1). If there
    were no violation of the 2017 Writ, EPA’s failure to meet its
    “statutory obligations” under the TSCA is not properly before
    us.
    B. EPA did not need to address comments outside the
    scope of its rulemaking.
    EPA did not act arbitrarily or capriciously when it
    responded to soil-lead related comments in its rulemaking.
    EPA is not required to address comments outside the scope of
    the rulemaking.        See Am. Fuel & Petrochemical
    Manufacturers v. EPA, 
    937 F.3d 559
    , 585 (D.C. Cir. 2019),
    cert. denied sub nom. Valero Energy Corp. v. EPA, 
    140 S. Ct. 2792
    (2020) (agreeing that EPA “correctly dismissed
    comments” that were “outside the scope” of the rule). To the
    contrary, the agency is only required to respond to comments
    A COMMUNITY VOICE V. USEPA                     57
    that are “relevant to the agency’s decision and which, if
    adopted, would require a change in an agency’s proposed rule
    [because they] cast doubt on the reasonableness of a position
    taken by the agency.” Nat’l Min. Ass’n v. Mine Safety &
    Health Admin., 
    116 F.3d 520
    , 549 (D.C. Cir. 1997) (per
    curiam) (alteration in the original) (quoting Home Box Off.,
    Inc. v. FCC, 
    567 F.2d 9
    , 35 n.58 (D.C. Cir. 1977). The soil-
    lead hazard standards are separate and distinct from the
    DLHS. Thus, EPA did not need to address the comments.
    Further, even if the comments were relevant, EPA’s
    regulation is not arbitrary and capricious, unless it “failed to
    address significant comments raised during the rulemaking.”
    Ass’n of Priv. Sector Colleges & Universities v. Duncan,
    
    681 F.3d 427
    , 441–42 (D.C. Cir. 2012). Here, EPA explained
    that the comments were outside the scope and required
    different analyses; nothing more is required. See Nat’l Min.
    
    Ass’n, 116 F.3d at 549
    (explaining that the requirement to
    respond is not “particularly demanding”). Accordingly,
    nothing in this record establishes that EPA’s decision not to
    update soil standards in the 2019 rulemaking was arbitrary or
    capricious.
    ***
    The statutory scheme of the TSCA and RLBPHRA
    authorized EPA to consider both health and nonrisk factors in
    setting the DLHS. EPA did not act arbitrarily or capriciously
    in setting those levels. Nor did EPA violate the 2017 Writ in
    declining to set soil-lead hazard standards. Accordingly, the
    petition for review should be denied on these grounds.