Center for Bio. Diversity v. Mark Esper ( 2020 )


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  •                       FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    CENTER FOR BIOLOGICAL DIVERSITY;                    No. 18-16836
    TURTLE ISLAND RESTORATION
    NETWORK; JAPAN ENVIRONMENTAL                          D.C. No.
    LAWYERS FEDERATION; SAVE THE                       3:03-cv-04350-
    DUGONG FOUNDATION; ANNA                                 EMC
    SHIMABUKURO; TAKUMA
    HIGASHIONNA; YOSHIKAZU MAKISHI,
    Plaintiffs-Appellants,                  OPINION
    v.
    MARK ESPER, Secretary of Defense; *
    UNITED STATES DEPARTMENT OF
    DEFENSE,
    Defendants-Appellees.
    Appeal from the United States District Court
    for the Northern District of California
    Edward M. Chen, District Judge, Presiding
    Argued and Submitted February 3, 2020
    San Francisco, California
    Filed May 6, 2020
    *
    Mark Esper is substituted for his predecessor, Patrick Shanahan, as
    Secretary, Department of Defense, under FRAP 43(c)(2).
    2         CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    Before: Richard A. Paez and Carlos T. Bea, Circuit Judges,
    and Janis Graham Jack, ** District Judge.
    Opinion by Judge Jack;
    Concurrence by Judge Bea
    SUMMARY ***
    National Historic Preservation Act /
    Environmental Law
    The panel affirmed the district court’s grant of summary
    judgment for the U.S. Department of Defense in an action
    raising challenges to the Department’s construction and
    operation of a replacement aircraft base for the U.S. Marine
    Corp Air Station Futenma in Okinawa, Japan, and its
    potential adverse effects on the Okinawa dugong, an
    endangered marine mammal that is culturally significant.
    The panel held that the Department, as part of a plan to
    construct a new base in Okinawa, Japan, complied with the
    procedural requirement that it “take into account” the effects
    of its proposed action on foreign property under Section 402
    of the National Historic Preservation Act (“NHPA”), 
    54 U.S.C. § 307101
    (e). As a matter of first impression, the
    panel outlined what is required by Section 402’s “take into
    account” directive. The panel agreed with the district court
    **
    The Honorable Janis Graham Jack, United States District Judge
    for the Southern District of Texas, 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.
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER              3
    that the process must include (1) identification of protected
    property, (2) generation, collection, consideration, and
    weighing of information pertaining to how the undertaking
    will affect the protected property, (3) a determination as to
    whether there will be adverse effects or no adverse effects
    on the protected property, and (4) if necessary, development
    and evaluation of alternatives or modifications to the
    undertaking that could avoid or mitigate the adverse effects
    on the protected property. The panel further held that
    consultation with the host nation, outside experts, or private
    parties will be necessary for an agency to meet its
    obligations.
    The panel rejected appellants’ challenges to this
    consultation requirement, and held that Section 402
    compliance does not require an agency to consult with
    specific parties, or to permit direct public participation.
    Specifically, the panel held that the regulations
    implementing NHPA Section 106’s “take into account”
    process did not apply to NHPA Section 402. The panel
    construed Section 402 as requiring reasonable consultation
    with outside entities to determine how an undertaking may
    impact a protected property and what may be done to avoid
    or mitigate any adverse effect. The panel held that Section
    402 delegates to federal agencies the specific decisions of
    which organizations, individuals, and/or entities to consult
    (or not consult) and the manner in which such consultation
    occurs. The panel declined to construe Section 402 as
    requiring public participation. The panel applied the
    requirements for complying with Section 402, and held that
    the Department’s process for complying with Section 402
    was reasonable, and that the Department was not required to
    engage in the additional process appellants sought.
    4        CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    The panel held that the Department’s finding that its
    proposed action would have no adverse effect on the dugong
    was not arbitrary or capricious under Section 706 of the
    Administrative Procedure Act, 
    5 U.S.C. § 706
    . Specifically,
    the panel held that substantial evidence supported the
    Department’s conclusion that the presence of the dugong in
    the area on the new base was sporadic, even if it did not
    possess more robust baseline population data; and the
    Department reasonably concluded that there would be no
    adverse effects on the dugong as a result of the new base.
    The panel further held that the Department was not
    unreasonable when it failed to consider population
    fragmentation, disruption of travel routes, and loss of habitat
    required to sustain the population, in evaluating the impacts
    of the new base on the dugong. The panel also held that the
    Department rationally concluded that the construction and
    operation of the new base would not adversely impact the
    dugong population, and would have no adverse effect on the
    dugong’s cultural significance.
    Judge Bea concurred, and joined the majority opinion in
    full, apart from footnote 2. Judge Bea wrote separately
    because he believed that a better resolution of the case would
    be to affirm the district court judgment on the ground that
    Section 402 does not apply to the dugong as a matter of law.
    COUNSEL
    Danny G. Thiemann (argued), Sarah H. Burt, and J. Martin
    Wagner, Earthjustice, San Francisco, California; for
    Plaintiffs-Appellants.
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER             5
    John L. Smeltzer (argued), Mark R. Haag, Peter Kryn
    Dykema, Taylor N. Ferrell, and Ragu-Jara “Juge” Gregg,
    Attorneys; Eric Grant, Deputy Assistant Attorney General;
    Jeffrey Bossert Clark, Assistant Attorney General;
    Environment & Natural Resources Division, United States
    Department of Justice, Washington, D.C.; Robert Smith and
    Cara M. Johnson, Office of General Counsel, Department of
    the Navy, Washington, D.C.; for Defendants-Appellees.
    OPINION
    JACK, District Judge:
    In this environmental action, we are asked to consider
    two questions: (1) whether the Department of Defense, as
    part of a plan to construct a new base in Okinawa, Japan,
    complied with the procedural requirement that it “take into
    account” the effects of its proposed action on foreign
    property under Section 402 of the National Historic
    Preservation Act (NHPA), 
    54 U.S.C. § 307101
    (e); and
    (2) whether the Department’s finding that its proposed
    action would have no adverse effect on the foreign property
    was arbitrary, capricious, an abuse of discretion, and/or
    contrary to law in violation of Section 706 of the
    Administrative Procedure Act (APA), 
    5 U.S.C. § 706
    . We
    hold that the Department met its procedural obligations and
    that its finding of “no adverse impact” was not arbitrary and
    capricious and therefore affirm the district court’s grant of
    the Department of Defense’s motion for summary judgment.
    I. Relevant Factual & Procedural Background
    In a 2017 opinion, we detailed the background and
    lengthy procedural history of this case. See Ctr. for
    Biological Diversity v. Mattis, 
    868 F.3d 803
     (9th Cir. 2017).
    6           CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    In light of that discussion, we do not repeat it here. To give
    context to our opinion, however, we briefly recap the nature
    of the dispute and one of the district court’s critical rulings
    leading up to this appeal.
    This action arises out of the Department’s construction
    and operation of the Futenma Replacement Facility in
    Okinawa, Japan, a replacement aircraft base for the U.S.
    Marine Corp Air Station Futenma, hereinafter referred to as
    the “new base,” and its potential adverse effects on the
    Okinawa dugong, an endangered marine mammal that is
    culturally significant to many Okinawans.
    In 2003, Appellants, who are private individuals and
    environmental organizations interested in the preservation of
    the Okinawa dugong population, filed the instant action
    under the APA alleging the Department failed to take into
    account the adverse effects of the new base on the Okinawa
    dugong in violation of Section 402 1 of the NHPA. The
    Department moved to dismiss the action on the grounds that
    the Japanese Law for the Protection of Cultural Properties,
    under which the Okinawa dugong is protected as a natural
    monument, was not “equivalent” to the U.S. National
    Register of Historic Places for purposes of applying Section
    402, and that the Okinawa dugong did not qualify as
    “property” subject to the requirements of Section 402.
    In 2005, the district court denied the Department’s
    motion, holding that the Japanese Law for the Protection of
    Cultural Properties was the “equivalent of the National
    Register” and that the Okinawa dugong qualified as
    “property.” Dugong v. Rumsfeld, No. C 03-4350, 
    2005 WL 1
    All references to Section 402 shall be to Section 402 of the NHPA.
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER                7
    522106, at *6–12 (N.D. Cal. Mar. 2, 2005) (Okinawa
    Dugong I).
    Regarding its property holding, the district court noted
    that it could end its inquiry over whether the Okinawa
    dugong qualified as “property” upon finding that the
    Japanese Law for the Protection of Cultural Properties was
    equivalent to the National Register. 
    Id. at *8
    . Instead,
    however, it addressed the Department’s main argument and
    analyzed whether the Okinawa dugong was “property”
    under the NHPA’s statutory framework. 
    Id.
     at *8–12. The
    court explained that the Okinawa dugong fulfilled each
    element of the definition of an “object” under 
    36 C.F.R. § 60.3
    (j), which is sufficient to qualify as “property” under
    the NHPA. 
    Id. at *9
    ; see 
    36 C.F.R. § 800
    .16l(1) (defining
    “historic property” as “any prehistoric or historic district,
    site, building, structure, or object included in, or eligible for
    inclusion in, the National Register of Historic Places”);
    
    36 C.F.R. § 60.3
    (j) (defining “object” as “a material thing of
    functional, aesthetic, cultural, historical or scientific value
    that may be, by nature or design, movable yet related to a
    specific setting or environment”). The court found that the
    Okinawa dugong satisfied the definition of an “object”
    because it was a “material thing” that was “movable, yet
    related to a specific setting or environment.” 
    Id.
     at *10–12.
    Following the denial of the Department’s motion, the
    parties conducted discovery regarding the adequacy of the
    Department’s take into account process on the adverse
    effects of the new base on the Okinawa dugong, and then
    filed cross-motions for summary judgment.
    In 2008, the district court granted Appellants’ cross-
    motion, finding that the Department failed to take into
    account adequately the adverse effects of the new base on
    the Okinawa dugong. Crucial to the instant appeal, it held
    8       CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    that a “take into account” process under Section 402
    consisted of four basic components:
    (1) identification of protected property,
    (2) generation, collection, consideration, and
    weighing of information pertaining to how
    the undertaking will affect the historic
    property, (3) a determination as to whether
    there will be adverse effects or no adverse
    effects, and (4) if necessary, development
    and     evaluation    of     alternatives   or
    modifications to the undertaking that could
    avoid or mitigate the adverse effects.
    Okinawa Dugong v. Gates, 
    543 F. Supp. 2d 1082
    , 1104
    (N.D. Cal. 2008) (Okinawa Dugong II). The district court
    also stated that “a federal agency does not complete the take
    into account process on its own, in isolation, but engages the
    host nation and other relevant private organizations and
    individuals in a cooperative partnership.” 
    Id.
     The district
    court concluded that the Department failed to comply with
    the requirements of Section 402 in connection with its plan
    to construct the new base. 
    Id. at 1111
    . It found that there
    was “no evidence that a single official from [the
    Department] with responsibility for the [new base] ha[d]
    considered or assessed the available information on the
    dugong or the effects of the [new base].” 
    Id. at 1108
    .
    Accordingly, it ordered the Department to comply with the
    requirements of Section 402 and held the case in abeyance
    until such time as the Department completed its “take into
    account” process on the effects of the new base on the
    dugong. 
    Id. at 1112
    .
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER              9
    In the years following the district court’s order, the
    Department conducted a “take into account” process
    regarding the potential adverse effects of the new base on the
    dugong. In doing so, the Department relied on five sources:
    (1) The Welch Report: an anthropological report by
    Dr. David A. Welch commissioned by the
    Department regarding the cultural significance of the
    Okinawa dugong in Okinawan culture;
    (2) The Jefferson Report: a biological assessment of the
    Okinawa dugong by Dr. Thomas A. Jefferson
    commissioned by the Department;
    (3) The Futenma Replacement Facility Bilateral Experts
    Study Group Report: an August 31, 2010 report by a
    bilateral group of U.S. and Japanese representatives
    studying the new base’s location, configuration, and
    construction method;
    (4) The SuMMO Project Final Report: an August 28,
    2013 report of the Survey of the Marine Mammals of
    Okinawa (SuMMO) Project conducted in 2011–
    2012, on behalf of the United States Marine Corps,
    to update the Integrated Natural Resources/Cultural
    Resources Management Plan for the Marine Corps
    Base Camp Smedley D. Butler;
    (5) The Japanese Government’s Environmental Impact
    Statement/Assessment       (EIS/EIA):     Translated
    excerpts of the Japanese government’s final and draft
    environmental impact statement/assessment on the
    effects of the new base on the dugong.
    Based on its investigation, the Department concluded that
    there would be “‘no adverse effect’ on the Okinawa dugong”
    10      CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    as a result of the new base “because of the extremely low
    probability of Okinawa dugong being in” the area of the new
    base. U.S. Marine Corps Recommended Findings (April
    2014) (“2014 USMC Findings”), § 3.1. It also concluded
    that “should dugongs in fact be present, the construction and
    operational activity [would] primarily [be] of the type that
    would not have an adverse effect” on them. Id.
    In 2014, the Department filed a notice of completion of
    its “take into account” process, attaching its findings. In
    response to the Department’s notice, Appellants filed a first
    supplemental complaint, alleging that the Department
    violated the requirements for a “take into account” process
    under Section 402 by failing to (1) consult Appellants as
    interested parties in the “take into account” process,
    (2) provide information to the public about the proposed new
    base and its potential effects on the Okinawa dugong, and
    (3) seek public comment and input. First Suppl. Compl.,
    ¶¶ 48–50. They also alleged that the Department’s finding
    that the new base would have no adverse effects on the
    dugong was arbitrary and capricious and violated Section
    706 of the APA. Id., ¶ 51.
    The district court initially dismissed the supplemental
    complaint on the grounds of political question and standing.
    Ctr. for Biological Diversity v. Hagel, 
    80 F. Supp. 3d 991
    ,
    1019 (N.D. Cal. 2015) (Okinawa Dugong III). We reversed
    and remanded to the district court for consideration of
    Appellants’ claims on the merits. Ctr. for Biological
    Diversity, 868 F.3d at 830.
    On remand, the parties filed cross-motions for summary
    judgment on the adequacy of the Department’s “take into
    account” process.     The district court granted the
    Department’s motion for summary judgment, finding that
    Appellants had not demonstrated that the Department’s
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER            11
    “take into account” process was unreasonable or violated
    Section 402, and the Department’s finding that the new base
    would have no adverse effects on the dugong was not
    arbitrary or capricious. Okinawa Dugong v. Mattis, 
    330 F. Supp. 3d 1167
    , 1197–98 (N.D. Cal. 2018) (Okinawa Dugong
    IV).
    Appellants timely appealed.
    II. Standard of Review
    Because the NHPA is a procedural statute that provides
    no independent basis for judicial review, a plaintiff who
    brings a cause of action under the NHPA must do so under
    the APA. San Carlos Apache Tribe v. United States,
    
    417 F.3d 1091
    , 1099 (9th Cir. 2005). The APA authorizes
    judicial review of final agency actions or decisions “for
    which there is no other adequate remedy in a court.”
    
    5 U.S.C. § 704
    ; Ctr. for Biological Diversity, 868 F.3d
    at 816 n.5. We therefore construe the instant action as being
    brought under the APA. Ctr. for Biological Diversity,
    868 F.3d at 816 n.5.
    We review de novo a challenge to a final agency action
    decided on summary judgment and pursuant to Section 706
    of the APA. Turtle Island Restoration Network v. U.S. Dep’t
    of Commerce, 
    878 F.3d 725
    , 732 (9th Cir. 2017).
    12          CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    III.      Analysis 2
    A. The Department’s Section 402 Compliance
    1. Requirements for Section 402’s “Take Into
    Account” Process
    As a matter of first impression, we must decide what is
    required by Section 402’s directive that an agency must
    “take into account the effect of the undertaking on the
    property for purposes of avoiding or mitigating any adverse
    effect.” 
    54 U.S.C. § 307101
    (e). To begin, we agree with the
    district court that the process must include (1) identification
    of protected property, (2) generation, collection,
    consideration, and weighing of information pertaining to
    how the undertaking will affect the protected property, (3) a
    determination as to whether there will be adverse effects or
    2
    We do not consider the Department’s challenge to the district
    court’s 2005 ruling that Section 402 applies to the dugong. See Okinawa
    Dugong I, 
    2005 WL 522106
    , at *6–12. While “a notice of cross-appeal
    is a rule of practice [] . . . rather than a jurisdictional requirement,”
    Mendocino Envtl. Ctr. v. Mendocino Cty., 
    192 F.3d 1283
    , 1298 (9th Cir.
    1999), the Department should have filed a notice of cross-appeal on this
    issue given the unique circumstances of this litigation. The issue of
    whether Section 402 applies to the dugong was litigated 13 years ago,
    during which time the district court decided summary judgment twice.
    See Okinawa Dugong II, 
    543 F. Supp. 2d 1082
    ; Okinawa Dugong IV,
    
    330 F. Supp. 3d 1167
    . Both rulings relied, in part, on the earlier ruling
    that Section 402 applied to the dugong. To consider the Department’s
    challenge now would effectively undermine 13 years of litigation, not to
    mention the parties’ and the courts’ time and resources. Furthermore,
    although the Department initially filed a notice of cross-appeal on this
    issue in 2015, it later withdrew the notice. Since that time, the
    Department has given no indication that it intended to appeal this issue
    until its Answering Brief in this appeal, which was filed 14 years after
    the ruling in question. On top of this, the Department’s failure to file a
    cross-appeal is entirely unexplained.
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER                      13
    no adverse effects on the protected property, and (4) if
    necessary, development and evaluation of alternatives or
    modifications to the undertaking that could avoid or mitigate
    the adverse effects on the protected property. These are
    straightforward requirements that will allow agencies to
    evaluate how their undertakings impact foreign protected
    properties and enable agencies to take reasonable mitigation
    measures. We also agree with the district court that “a
    federal agency does not complete the take into account
    process on its own, in isolation,” Okinawa Dugong II, 
    543 F. Supp. 2d at 1104
    , and that consultation with the host nation,
    outside experts, or private parties will be necessary for an
    agency to meet its obligations. 3 It is the required scope of
    this consultation that the parties contest today.
    Appellants argue that the Department’s “take into
    account” process violated the requirements of Section 402
    because the Department failed to consult with Appellants
    and local community members, provide an opportunity for
    public participation, and consult with any entity regarding
    the effect of the new base on the cultural characteristics of
    the dugong. Appellants make their argument by citing to
    regulations governing a separate provision of NHPA,
    Section 106. We disagree with Appellants’ arguments and
    hold that Section 402 compliance does not require an agency
    3
    Outside consultation is not a standalone requirement for Section
    402 compliance. Rather consultation with the host nation, outside
    experts, private parties, or others enables the agency to collect and
    analyze data about whether and how the undertaking will impact
    protected properties, and if so, develop avoidance or mitigation
    measures. As discussed below, a decision to consult, or not, in any
    specific instance or in any specific manner or with any specific person is
    evaluated to ensure the agency’s process was reasonable.
    14        CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    to consult with specific parties, or to permit direct public
    participation.
    a. Applicability     of                 Regulations
    Governing Section 106
    We initially decide whether the regulations governing a
    Section 106 4 “take into account” process apply to Section
    402 such that a federal agency must consult with specific
    organizations, individuals, and/or entities, and provide a
    period of public notice and comment, to comply with Section
    402 the same as it must to comply with Section 106. We
    conclude that regulations implementing Section 106 do not
    apply to Section 402.
    Unlike Section 106, there are no regulations governing
    Section 402, and neither is there an agency empowered to
    promulgate binding regulations for implementing Section
    402. The full scope of Section 402’s requirements are found
    in the statutory text that requires agencies performing an
    “undertaking outside the United States that may directly and
    adversely affect a property that is on the World Heritage List
    or on the applicable country’s equivalent of the National
    Register,” to “take into account the effect of the undertaking
    4
    NHPA Section 106 requires federal agencies to “take into account
    the effect of the undertaking on any historic property” and to “afford the
    [Advisory] Council [on Historic Preservation] a reasonable opportunity
    to comment with regard to the undertaking.” 
    54 U.S.C. § 306108
    . Unlike
    Section 402, which applies abroad, Section 106 applies to
    “undertakings” that occur within the United States. The Advisory
    Council on Historic Preservation is authorized by statute to issue binding
    regulations regarding Section 106 implementation, and current
    regulations require agencies to consult with certain organizations,
    entities and/or individuals, and to seek public comment on proposed
    undertakings effecting historic properties, before proceeding with the
    project. See 
    54 U.S.C. § 304108
    (a); 
    36 C.F.R. § 800.2
    .
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER                       15
    on the property for purposes of avoiding or mitigating any
    adverse effect.” 
    54 U.S.C. § 307101
    (e). Nevertheless,
    Appellants argue that regulations governing Section 106, if
    not directly, then implicitly, apply to Section 402 and require
    a federal agency to adhere to those regulations in a Section
    402 “take into account” process. See, e.g., 
    36 C.F.R. §§ 800.2
     et seq. (regulations outlining requirements for a
    Section 106’s “take into account” process which include,
    inter alia, consultation with parties, individuals, and/or
    entities specified under the regulation and public
    participation).
    We look to NHPA’s statutory framework to determine
    whether it is correct to apply regulations governing Section
    106’s “take into account” process to Section 402. The fact
    that Section 402 is identical in material aspects to its
    domestic counterpart, Section 106, initially suggests that it
    might be correct to apply Section 106’s regulations to
    Section 402 because the phrase “take into account” is used
    in both sections in the same manner. 5 Compare 
    54 U.S.C. § 306108
     (under Section 106, a federal agency must “take
    into account the effect of the undertaking on any historic
    property” within the United States), with 
    54 U.S.C. § 307101
    (e) (requiring a federal agency to “take into account
    the effect of the undertaking on the property” outside of the
    United States under Section 402). Counseling against this
    5
    The Advisory Council on Historic Preservation (ACHP)
    regulations implementing Section 106’s “take into account” process
    requirements were also in existence by the time Congress enacted
    Section 402 in 1980. See Hall v. U.S. E.P.A., 
    273 F.3d 1146
    , 1158 (9th
    Cir. 2001) (“When Congress incorporates the text of past interpretations,
    ‘Congress’ repetition of a well-established term carries the implication
    that Congress intended the term to be construed in accordance with pre-
    existing . . . interpretations.’” (quoting Bragdon v. Abbott, 
    524 U.S. 624
    ,
    631 (1998)).
    16       CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    application, however, is the absence of an express delegation
    of authority by Congress to a federal agency to promulgate
    implementing regulations for Section 402. We construe this
    absence as evidence of Congress’s intent to give a federal
    agency flexibility in conducting a “take into account”
    process under Section 402. See Envtl. Def. v. Duke Energy
    Corp., 
    549 U.S. 561
    , 574 (2007) (“A given term in the same
    statute may take on distinct characters from association with
    distinct statutory objects calling for different
    implementation strategies.”).
    We therefore conclude that Section 106’s regulations do
    not apply to Section 402 under the NHPA’s statutory
    framework. However, this does not end our inquiry. Even
    though Section 106’s regulations do not apply to Section
    402, we must still consider whether Section 402 should
    nevertheless be construed as requiring the specific
    consultation and public participation Appellants seek.
    b. Consultation Requirement
    Requiring a federal agency to engage in reasonable
    consultation with other nations, local governments, private
    organizations, individuals, or others as part of the process for
    taking into account the effects its projects may have on
    foreign protected property is consistent with Section 402’s
    purpose and congressional intent. When Congress enacted
    Section 402, it declared that it was “the policy of the Federal
    Government . . . to provide leadership in the preservation of
    the historic property of the United States and of the
    international community of nations” “in cooperation with
    other nations and in partnership with the States, local
    governments, Indian tribes . . . and private organizations
    and individuals.” 
    54 U.S.C. § 300101
    (2) (emphasis added).
    Additionally, the Department of Interior’s (DOI) Guidelines
    provide, in relevant part, that “[e]fforts to identify and
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER                       17
    consider effects on historic properties in other countries
    should be carried out in consultation with the host country’s
    historic preservation authorities, with affected communities
    and groups, and with relevant professional organizations.”
    
    63 Fed. Reg. 20,496
    , 20,504 (Apr. 24, 1998). 6 However, the
    absence of regulations governing which specific parties,
    individuals, and/or entities to consult demonstrates that
    those decisions should be left to the discretion of the agency.
    See 
    id. at 20,504
     (stating that “specific consultation
    requirements and procedures will vary among agencies
    depending on their missions and programs, the nature of
    historic properties that might be affected, and other
    factors”). 7
    Accordingly, we construe Section 402 as requiring
    reasonable consultation with outside entities to determine
    how an undertaking may impact a protected property and
    6
    Although the DOI is charged with “direct[ing] and coordinat[ing]
    participation by the United States in the World Heritage Convention,”
    
    54 U.S.C. § 307101
    (b), its guidelines “have no regulatory effect.”
    63 Fed. Reg. at 20,496.
    7
    Although the DOI Guidelines also state that “consultation should
    always include all affected parties,” 63 Fed. Reg. at 20,504, we need only
    accord these Guidelines Skidmore deference to the extent that they have
    the “power to persuade.” Sierra Club v. Trump, 
    929 F.3d 670
    , 693 (9th
    Cir. 2019) (under Skidmore deference, “we look to ‘the thoroughness
    evident in [the agency’s] consideration, the validity of its reasoning, its
    consistency with earlier and later pronouncements, and all those factors
    which give it power to persuade.’” (quoting Skidmore v. Swift & Co.,
    
    323 U.S. 134
    , 140 (1944))). The Guidelines are persuasive only to the
    extent that they encourage consultation with all interested parties and
    organizations, to the extent possible, during a Section 402 “take into
    account” process. See, e.g., Marshall v. Anaconda Co., 
    596 F.2d 370
    ,
    375 (9th Cir. 1979) (explaining that “the intent to make mandatory is
    unmistakable when ‘shall . . . unless’ language is used[;] “[s]hould . . .
    unless” language is clearly [m]ore advisory”).
    18       CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    what may be done to avoid or mitigate any adverse effect.
    But, because the nature of reasonable consultation will
    naturally vary based on the agency involved and the scope
    of the undertaking, we also find Section 402 delegates to
    federal agencies the specific decisions of which
    organizations, individuals, and/or entities to consult (or not
    consult) and the manner in which such consultation occurs.
    See, e.g., Okinawa Dugong II, 
    543 F. Supp. 2d at 1105
    (explaining that while “Congress may have been silent on
    the regulatory specifics and implementation details,
    allowing the precise letter of the statute to be filled in by a
    particular agency depending on the agency’s mission and
    undertaking, Congress was clear on the basic spirit and
    framework of the take into account process” (emphasis
    added)). An agency’s decision about the scope of outside
    consultation for any given undertaking will be upheld unless
    the decision was “arbitrary, capricious, an abuse of
    discretion, or otherwise not in accordance with law.”
    
    5 U.S.C. § 706
    (2)(A).
    c. Public Participation Requirement
    We decline to construe Section 402 as requiring public
    participation because there is no evidence of congressional
    intent to require public participation, and there are no
    guidelines interpreting Section 402 to include public
    participation. Public participation, such as through a period
    of notice and comment, is simply one means by which an
    agency may fulfill part of its procedural obligations under
    Section 402, and an agency’s choice not to engage the public
    directly will be upheld unless the decision was arbitrary and
    capricious. See 
    5 U.S.C. § 706
    (2)(A).
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER            19
    2. The    Department’s           Section      402
    Compliance Procedures
    We now apply the requirements for complying with
    Section 402 to the Department’s actions. Because this action
    proceeds under the APA, we review the Department’s
    decisions for reasonableness. Ctr. for Biological Diversity
    v. Bureau of Land Mgmt., 
    833 F.3d 1136
    , 1146 (9th Cir.
    2016). To determine whether an agency’s decision was
    reasonable, we look to whether the agency’s decision was
    “founded on a rational connection between the facts found
    and the choices made . . . and whether [the agency] has
    committed a clear error of judgment.” River Runners for
    Wilderness v. Martin, 
    593 F.3d 1064
    , 1070 (9th Cir. 2010)
    (citation and internal quotation marks omitted).
    The Department clearly complied with the first
    requirement that it identify the protected property at issue.
    The district court’s 2005 order made it explicit that the
    Okinawa dugong was property protected by Section 402. To
    comply with the second requirement that it generate, collect,
    consider, and weigh information pertaining to how the new
    base may affect the dugong, the Department commissioned
    multiple studies, reviewed others that had previously been
    completed, and issued a final report of its findings. Studies
    conducted by the Department analyzed both potential
    biological and cultural impacts from constructing the new
    base. The anthropological study, headed by Dr. Welch,
    included indirect consultation with Okinawans who engage
    in cultural practices with the dugong. The Department also
    directly engaged with the Japanese government as part of a
    bilateral working group and incorporated the Japanese
    government’s environmental impact study into its final
    recommendation. For the third requirement, based on the
    information the Department collected about the impact the
    20        CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    new base would have on the dugong, it determined there
    would be no adverse effects on the dugong, 8 which relieved
    the Department of the obligation to enact mitigation
    measures under the fourth requirement for Section 402
    compliance.
    Appellants argue the Department’s process for
    complying with Section 402 was not reasonable because as
    part of the process for gathering and analyzing how the new
    base may impact the dugong, the Department did not consult
    with Appellants directly, consult directly with the local
    community, seek public comment, or consult on how the
    new base would impact the cultural significance of the
    dugong. We disagree and find the Department’s process for
    complying with Section 402 was reasonable, and that the
    Department was not required to engage in the additional
    process Appellants seek.
    a. Direct Consultation with Appellants
    and Local Community Members
    Because the Department was not required to consult any
    specific organization, individual and/or entity under Section
    402, we consider only whether it was reasonable for the
    Department not to consult Appellants and local community
    members. We conclude that it was.
    Although Appellants have certainly demonstrated an
    interest in the dugong, Appellants have provided no
    evidence that had the Department consulted them, they
    would have contributed information material to the
    Department’s “take into account” analysis. The evidence
    8
    Whether this determination was supported by substantial evidence
    is discussed below.
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER               21
    that Appellants cite, i.e., the Declarations of Anna Koshiishi
    and Takuma Higashionna, is largely irrelevant. The
    declarations were submitted seven years before the
    Department conducted its “take into account” process.
    Additionally, the Department noted that it had considered
    the declarations submitted by Appellants in the litigation as
    a part of its “take into account” process, which would have
    presumably included these declarations, among others. 2014
    USMC Findings, § 2.1.
    While Appellants are correct that the Department did not
    directly consult local community members or practitioners
    to whom the dugong was culturally and spiritually
    significant, the Department did obtain such information
    indirectly. One such source was Appellants’ own expert, Mr.
    Isshu Maeda, who “conducted extensive research both in
    literature and in the field on the role of the dugong in folklore
    and ritual,” among other cultural experts. Welch Report at
    p.9. The Department also obtained information indirectly
    from other interviewees who had talked to cultural
    practitioners “to whom the interview team could not get
    access and had information regarding rituals and other
    cultural practices that [had] never been published.” Id. at pp.
    10–11.
    No evidence suggests that the information obtained from
    these indirect sources was incomplete or inaccurate. Cf. Te-
    Moak Tribe of W. Shoshone of Nev. v. U.S. Dep’t of Interior,
    
    608 F.3d 592
    , 609 (9th Cir. 2010) (rejecting an argument that
    the DOI’s failure to consult timely with plaintiffs violated
    Section 106 because plaintiffs “[did] not identify any new
    information that [the Native American Tribe] would have
    brought to the attention of the [Bureau of Land
    Management] had it been consulted earlier in the approval
    process,” and “fail[ed] to show or even argue that early
    22        CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    consultation would have prevented any adverse effect . . .”). 9
    Therefore, while it would have been preferable to Appellants
    for the Department to have consulted directly with local
    community members or practitioners, the Department’s
    decision to obtain the same information indirectly, through
    its other interviewees, was not unreasonable.
    b. Public Participation
    We also conclude that the Department’s decision not to
    provide public notice and comment on its “take into
    account” process was reasonable. As we have held, Section
    402 does not require direct public participation in the “take
    into account” process. Additionally, here, public notice and
    comment occurred in connection with the Japanese EIS/EIA,
    which the Department considered as part of its overall
    process. 10
    9
    Appellants make a passing argument that the Department failed to
    consult with the Okinawan government during the “take into account”
    process. This contention is unpersuasive. The April 2018 letter from
    Okinawa Governor Onaga to Secretary Mattis, referenced by Appellants,
    was sent four years after the Department completed the “take into
    account” process. Additionally, the then-governor of Okinawa
    participated in the EIS process, submitting extensive comments.
    10
    Our discussion of the public notice and comment undertaken by
    the Japanese government as part of producing its EIS/EIA should not be
    understood as a holding that a U.S. federal agency is not required to
    conduct notice and comment to comply with Section 402 only when the
    host country has conducted its own notice and comment process. As we
    have held, Section 402 does not mandate direct public participation in
    the approval process, and a decision to forgo notice and comment will
    be upheld if the decision was reasonable under the circumstances. Our
    discussion of the Japanese notice and comment period serves to highlight
    the reasonableness of the Department’s decision here not to engage in
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER             23
    Appellants challenge the adequacy of the Japanese
    EIS/EIA. They contend that the Japanese EIS process was
    inadequate because the Japanese EIS did not analyze the
    effect of the new base on the dugong’s cultural significance,
    only its biological impact on the dugong; and there was no
    public comment on the final EIS or the proposed mitigation
    measures.
    These challenges are largely meritless. The record
    shows that the Japanese EIS process included public
    comment before and after the final EIS. Additionally, even
    if there was no period of public comment on the mitigation
    measures, Appellants do not explain how the absence of that
    period of public comment would have affected the EIS’s
    ultimate conclusions. See Te-Moak Tribe, 
    608 F.3d at 609
    .
    Furthermore, while Appellants are correct that the
    Japanese EIS measured the biological impact of the new
    base on the dugong, there is no evidence that Appellants
    were precluded from commenting on the dugong’s cultural
    significance had they chosen to participate in the EIS’s
    periods of public notice and comment. Moreover, the new
    base’s biological impact on the dugong is also tied to its
    impact on the dugong’s cultural significance. As explained
    in the Welch Report, “[t]he most likely cultural impacts of
    the [new base] [on the dugong] will be indirect . . . and will
    stem from the biological harm that might be done to the
    dugong population as a result of construction and use of the
    [new base] in an area where dugongs feed (or at least fed in
    the past).” Welch Report at p.92 (emphasis added); see 
    id.
    (“Thus, our conclusion, based on this study, is that the
    disappearance of the dugong population from Okinawa
    additional public notice and comment in the face of Appellants’
    challenge.
    24       CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    would have an adverse cultural impact. Thus, biological
    conservation and management to help preserve and protect
    the species . . . are related directly to cultural protection of
    the dugong.”).
    c. Consultation With Entities Regarding
    the Effect of the New Base on the
    Cultural Significance of the Dugong
    Appellants argue that the Department failed to consult
    with entities regarding the effect of the new base on the
    dugong’s cultural significance. We conclude that the
    Department’s decision not to consult these entities was
    reasonable under the circumstances.
    Contrary to Appellants’ contentions, notwithstanding the
    Welch Report’s failure to disclose the purpose of the study
    to the interviewees, the Welch Report made findings
    regarding the cultural impacts of the new base on the
    dugong. Specifically, it found that while the new base
    should have “little direct adverse impact on the cultural
    significance of the dugong or on traditional cultural practices
    associated with the dugong,” the new base would have a
    “direct impact[]” on the dugong’s bed, Jangusanumii,
    seagrass beds in the vicinity of Henoko Village. Welch
    Report at p.91. It, however, concluded that the “project
    research found no indication” of any “culturally important
    activities” being conducted in or associated with that area.
    
    Id.
    B. The Department’s Finding of No Adverse
    Effect
    Appellants contend that the Department’s finding that
    the new base would have no adverse effect on the dugong
    was arbitrary, capricious, and contrary to law because the
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER              25
    Department did not have the baseline biological data to make
    a reliable determination of the effects of the new base on the
    dugong and did not consider the full range of impacts of the
    new base on the dugong. Appellants also contend that the
    finding is contradicted by the evidence in the record. We
    disagree.
    1. Legal Standard
    Under Section 706 of the APA, a reviewing court must
    “hold unlawful and set aside agency action, findings, and
    conclusions found to be . . . arbitrary, capricious, an abuse of
    discretion, or otherwise not in accordance with law.”
    
    5 U.S.C. § 706
    (2)(A).
    “The arbitrary or capricious standard is a deferential
    standard of review under which the agency’s action carries a
    presumption of regularity.” San Luis & Delta-Mendota
    Water Auth. v. Locke, 
    776 F.3d 971
    , 994 (9th Cir. 2014).
    “Where the agency has relied on relevant evidence [such
    that] a reasonable mind might accept as adequate to support
    a conclusion, its decision is supported by substantial
    evidence,” and this court must affirm the agency’s finding.
    San Luis & Delta-Mendota Water Auth. v. Jewell, 
    747 F.3d 581
    , 601 (9th Cir. 2014) (citation and internal quotation
    marks omitted). “Even [i]f the evidence is susceptible of
    more than one rational interpretation, [the court] must
    uphold [the agency’s] findings.” 
    Id.
     (citation and internal
    quotation marks omitted).
    Although the deference owed to an agency is neither
    “unlimited” nor “automatic[],” San Luis & Delta-Mendota
    Water Auth., 776 F.3d at 994, a reviewing court will “strike
    down agency action as arbitrary and capricious [only] if the
    agency has relied on factors which Congress has not
    intended it to consider, entirely failed to consider an
    26      CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    important aspect of the problem, offered an explanation for
    its decision that runs counter to the evidence before the
    agency,” or made a decision “so implausible that it could not
    be ascribed to a difference in view or the product of agency
    expertise.” Turtle Island Restoration Network, 878 F.3d
    at 732–33 (citation and internal quotation marks omitted)
    (alteration added).
    2. Analysis
    a. Baseline Dugong Population Data
    Appellants are correct that the Department lacked robust
    baseline population data for the dugong population in
    Okinawa. See 2014 USMC Findings, § 3.1 (commenting
    that the available “data [is] not sufficient to establish
    population size, status, and viability” of the dugong
    population in Okinawa); id., § 3.4 (noting the “absence of
    recent total population data” for the Okinawa dugong and
    finding it would be beneficial for the Japanese government
    “to conduct new systematic surveys or modeling using
    methods currently accepted by marine mammal biologists to
    confirm current estimates about the overall size and status of
    the dugong population in Okinawa and the viability of a
    population of this size”).
    Indeed, as Appellants point out, the Department’s own
    researchers criticized the lack of robust dugong population
    data in its own studies and the Japanese EIS. See July 28,
    2011 e-mail from a SuMMO researcher (recommending “a
    targeted dugong monitoring project in [a] more rigorous
    manner” and discouraging “using data from the currently
    designed project to make legally defensible claims regarding
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER                27
    the presence or absence of dugongs”); 11 March 22, 2010 e-
    mail from Dr. Jefferson (criticizing the Japanese EIA as
    “extremely poorly-done” and “not withstanding scientific
    scrutiny”); Welch Report at p.95 (critiquing the Japanese
    EIS, and observing that without more robust data, “it
    [would] be difficult to impossible to assess the potential
    adverse effects of the [new base], develop appropriate
    mitigation measures, and evaluate the success of mitigation
    measures”); Jefferson Report at p.17 (recommending a
    “better understanding of the current status of the dugong
    population . . . in order to understand what impacts might be
    expected from the construction of the [new base]”).
    But these criticisms do not demonstrate that the
    Department’s analysis was fundamentally “flawed.” See
    Ctr. for Biological Diversity, 833 F.3d at 1148; River
    Runners for Wilderness, 593 F.3d at 1070 (there need only
    be a “rational connection between the facts found and the
    choices made” to support an agency’s decision) (internal
    quotation marks omitted).     Baseline population data,
    although preferable, is “not an independent legal
    requirement.” Ore. Nat. Desert Ass’n v. Jewell, 
    840 F.3d 562
    , 568 (9th Cir. 2016) (citation and internal quotation
    marks omitted).
    Here, substantial evidence supports the Department’s
    conclusion that the presence of the dugong in the area of the
    new base was sporadic, even if it did not possess more robust
    baseline population data. The Department’s baseline
    population data suggested only a “remnant population” of
    Okinawa dugongs, ranging from 3 to 50 individuals. 2014
    USMC Findings, § 3.1; see also Jefferson Report at p.17
    11
    The Department appears to have not relied on the data in the
    SuMMO Report to support its findings.
    28      CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    (opining that “[a]lthough no reliable abundance estimates
    exist, the [dugong] population [in Okinawa] is believed to
    number less than 50 individuals”).
    Additionally, the monthly survey data showed only
    sporadic or intermittent dugong activity in the area of the
    new base (the Henoko and Oura Bays). During four years of
    monthly surveys from 2009 to 2013, dugong feeding trails
    were observed in the new base site and the area immediately
    adjacent to the new base site only on seven occasions, in
    June 2009, August 2009, April 2012, May 2012, March
    2013, May 2013, and November 2013. 2014 USMC
    Findings, § 2.4. Also, only one dugong was photographed
    in the new base area. Id. By contrast, the monthly survey
    data demonstrated “routine dugong activity,” including
    dugong sightings and feedings trails, off Kayo, which is
    between 2 and 3 miles northeast the new base. Id.
    Oregon Natural Desert Association, relied on by
    Appellants, is factually inapposite. In Oregon Natural
    Desert Association, the Bureau of Land Management
    approved an environmental impact statement for a wind-
    energy project that was located on land that provided
    potential winter foraging habitats for the sage grouse.
    840 F.3d at 567. In approving the environmental impact
    statement, the Bureau did not conduct surveys to determine
    if sage grouse were present at the project during the winter
    months, but instead, “assumed” that the sage grouse were not
    present based on surveys done at neighboring sites, which
    the Bureau mistakenly interpreted as showing the absence of
    the sage grouse. Id. This court held the Bureau’s review
    “did not adequately assess baseline sage grouse numbers
    during winter” at the project site, because, contrary to the
    environmental impact statement, the data showed that there
    were, in fact, sage grouse present in one of the neighboring
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER              29
    sites during the winter months, so the Bureau’s data
    extrapolation was arbitrary and capricious. Id. at 564; see
    also id. at 569–70.
    By contrast, the Department reviewed dugong survey
    data covering the new base, as well as the neighboring,
    unaffected areas (Kayo). Based on the limited presence of
    the dugong in the new base site area, the Department
    reasonably concluded that the dugong’s presence was
    sporadic and intermittent, at best, and, as a result, that there
    would be no adverse effects on the dugong as a result of the
    new base.
    b. Full Range of Impacts of the New Base
    on the Dugong
    Appellants argue that the Department failed to consider
    population fragmentation, disruption of travel routes, and the
    loss of habitat required to sustain the population, in
    evaluating the impacts of the new base on the dugong.
    While Appellants are correct that the Department did not
    specifically consider population fragmentation and the
    disruption of travel routes, there was no data suggesting that
    the construction and operation of the new base would further
    fragment the dugong population or interfere with existing
    dugong travel routes to their habitats and/or potential feeding
    groups. Accordingly, the Department’s failure to consider
    these factors was not unreasonable.
    Regarding the loss of habitat, the Welch Report and the
    2014 USMC Findings identified the loss of certain seagrass
    beds in Henoko and Oura Bays, which were a potential
    natural habitat and food source for the dugong, as a result of
    land reclamation due to the construction of the new base.
    2014 USMC Findings, § 3.2.2; Welch Report at p.96. The
    30       CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    Department, however, concluded that the loss of these
    seagrass beds would not adversely impact the dugong
    “because these seagrass beds [were] not consistently or
    routinely used by resident dugong and there [were] other
    seagrass beds” that could maintain the dugong population.
    2014 USMC Findings, § 3.2.2. Substantial evidence exists
    to support that conclusion. The monthly survey data
    demonstrated that the dugong’s regular feeding trails were
    in Kayo, not in the Henoko or Oura Bays. 2014 USMC
    Findings, § 2.4. Moreover, as the Department noted in the
    2014 USMC Findings, the Japanese government had already
    committed to monitoring the seagrass beds and to expanding
    the seagrass habitat. 2014 USMC Findings, § 2.3.
    Although the Department could have addressed these
    factors more explicitly and obtained additional data, we
    cannot say that its failure to do so renders its ultimate finding
    arbitrary, capricious, or contrary to law. See Ctr. for
    Biological Diversity, 833 F.3d at 1148 (explaining that while
    plaintiff “could demonstrate persuasively numerous ways in
    which [the Bureau’s] emissions analysis could be
    improved,” “[m]ere differences in opinion, however, are not
    sufficient grounds for rejecting the analysis of [the
    agency]”).
    c. The Record Evidence
    The Department conducted extensive research on the
    effect of the new base on the dugong, including, but not
    limited to, studies commissioned on the biological and
    cultural assessment of the dugong, see generally Welch
    Report and Jefferson Report; all available survey data on the
    dugong population in Okinawa, the area of the new base, and
    the neighboring areas, see generally Draft Japanese
    EIS/EIA; field work including visits to cultural museums,
    the Okinawa Prefecture Board of Education, and
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER                    31
    interviewing cultural experts, see Welch Report at pp. 8–9;
    and the Japanese EIS/EIA which assessed the likelihood of
    the adverse impact of the construction and operation of the
    new base on the dugong. Based on these studies, interviews,
    and field work, the Department rationally concluded that the
    construction and operation of the new base would not
    adversely impact the dugong population, and would have no
    adverse effect on the dugong’s cultural significance. 12
    Appellants’ contentions that the Department’s finding is
    contradicted by the record evidence, including the Welch
    Report, the Department’s own findings, and the inadequacy
    of the mitigation efforts, are largely unsupported. 13
    For example, the Welch Report concluded that
    notwithstanding its conclusion, the mostly likely cultural
    impacts on the dugong would stem from biological harm,
    and that there was “reason to believe that the construction of
    [the new base could] proceed without having an overall
    adverse impact” on the Okinawa dugong with a “well-
    planned approach that involve[d] cultural sensitivity,
    adaptive management and state-of-the-art biological
    monitoring, and cooperation with the Japanese and
    Okinawan governments.” Welch Report at p.92. 14
    12
    But, regarding the dugong rituals performed in Henoko Village,
    the Department conceded that it was unable to assess the impact of the
    new base on these rituals given their secretive nature. 2014 USMC
    Findings, § 3.5.
    13
    We do not address all of Appellants’ contentions here, and focus
    instead on what appear to be Appellants’ main contentions.
    14
    Appellants also cite to dugong population data from the 2000 to
    2003 time period, and ignore more recent survey results that show a
    32         CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    Additionally, Appellants’ contention that dugongs
    would be harmed during construction by noise, vibration,
    and light “if they enter[ed] Oura Bay,” (emphasis added),
    discloses only a contingent and potential harm, not the
    likelihood of these harms occurring. Given the dugong’s
    sporadic presence in the Oura Bay and the “extremely low
    probability” of dugong activity in the area of the new base,
    the Department rationally concluded that there would be no
    adverse effects on the dugong from the construction and the
    operation of the new base.
    Finally, the fact that the mitigation measures
    “presuppose[]” the potential for adverse impact is not fatal
    to the Department’s ultimate finding. As discussed above,
    there was substantial evidence to support the Department’s
    finding, apart from the mitigation measures.
    IV.     Conclusion
    For the reasons discussed above, we affirm the district
    court’s grant of summary judgment to the Department.
    AFFIRMED.
    sporadic dugong presence in the Henoko and Oura Bays, which supports
    the Department’s conclusion that there was an “extremely low
    probability” of dugongs in the area of the new base.
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER             33
    BEA, Circuit Judge, concurring:
    The majority is correct that the Department of Defense
    (“the Department”) complied with the National Historic
    Preservation Act (“NHPA”) Section 402 procedural
    requirements and that its finding the new base in Okinawa
    would not adversely impact the dugong population was not
    arbitrary and capricious. For these reasons, apart from
    footnote 2, I join the majority opinion in full.
    I write separately, however, because I believe that rather
    than expounding the requirements for Section 402
    compliance and then evaluating the Department’s
    procedures in light of the standard, a better resolution of the
    case would have addressed the antecedent question: In
    constructing the new base in Okinawa, was the Department
    even bound by Section 402? Because, in my view, the
    answer to that question is no, I would affirm the judgment of
    the district court, but do so on the grounds that the
    Department was not subject to the procedural requirements
    of Section 402.
    I
    Early in the litigation, the Department filed a motion to
    dismiss (later converted into a motion for summary
    judgment) in which it argued Section 402, which creates
    procedural requirements for overseas projects that
    “adversely affect a property that is . . . on the applicable
    country’s equivalent of the National Register [of Historic
    Places],” did not apply to its new base because Japan’s Law
    for the Protection of Cultural Properties was not the
    “equivalent of the National Register” and because the
    dugong was not “property.” 
    54 U.S.C. § 307101
    (e). The
    district court disagreed and denied the motion. Dugong v.
    Rumsfeld, No. C 03-4350 MHP, 
    2005 WL 522106
    , at *8, 12
    34       CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    (N.D. Cal. Mar. 2, 2005) (“2005 order”). Litigation
    continued, and in 2015, the district court entered final
    judgment in the Department’s favor after finding the court
    lacked subject matter jurisdiction over the Center for
    Biological Diversity’s (“CBD”) claims based on the political
    question doctrine and a lack of standing. Ctr. for Biological
    Diversity v. Hagel, 
    80 F. Supp. 3d 991
    , 1019 (N.D. Cal.
    2015). CBD appealed that judgment, which we reversed and
    remanded to the district court. Ctr. for Biological Diversity
    v. Mattis (CBD I), 
    868 F.3d 803
    , 830 (9th Cir. 2017).
    Before we considered the merits of CBD’s appeal of that
    final judgment, however, the Department filed a timely
    notice of cross-appeal stating it intended to challenge prior
    orders from the district court that preceded the final
    judgment. One of those orders was the 2005 order finding
    the dugong was covered by Section 402. The following
    month, before briefing began, the Department voluntarily
    dismissed its cross-appeal. Later, in its answering brief to
    CBD’s initial appeal, the Department reiterated “its
    continuing objection” to the district court’s 2005 order, but
    it did not ask us to sustain the judgment in its favor on the
    ground that the 2005 order was wrongly decided. See CBD
    I, 868 F.3d at 822 n.7. We endorsed the Department’s
    decision to restrict its arguments to the issues of standing and
    the political question doctrine and proceeded on the
    assumption that the 2005 order was correct, without
    addressing the issue. However, at the same time we noted
    the Department reserved “the right to move for
    reconsideration or further appellate review” of the 2005
    order “[s]ubject to any waiver considerations.” See id.
    On remand, the district court again entered judgment for
    the Department, this time after finding that the Department
    had complied with Section 402’s procedural requirements
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER             35
    and further finding its determination that there would be no
    adverse impacts on the dugong was not arbitrary and
    capricious. Okinawa Dugong v. Mattis, 
    330 F. Supp. 3d 1167
    , 1197–98 (N.D. Cal. 2018) (“2018 order”). Following
    this judgment, CBD again filed a notice of appeal. This is the
    matter we decide today. This time the Department did not
    file a cross-appeal, but in its answering brief, the
    Department’s primary argument is that we should sustain the
    district court’s judgment in its favor, not on the reasoning in
    the district court’s 2018 order, but on the grounds that the
    2005 order was wrongly decided. Rather than viewing the
    Department’s argument as a simple request for affirmance
    on an alternative rationale, the majority believes that the
    Department is advancing an unnoticed cross-appeal that we
    may not consider. See Majority Op. at 2 n.2. Therefore, it
    bypasses the issue and affirms the district court’s judgment
    on the rationale that the district court put forth in the 2018
    order.
    I believe the majority is incorrect that, by arguing the
    2005 order was wrongly decided, the Department is making
    an unnoticed cross-appeal, and I believe the Department is
    right on the merits of that argument. Because whether the
    2005 order was correct that Section 402 applies to the
    dugong is a threshold issue required to be addressed before
    we can decide whether the Department acted in conformity
    with Section 402 and the Administrative Procedure Act, I
    would resolve the case by holding that the district court erred
    by concluding, as a matter of law, that Section 402 applies
    to the dugong and affirm the judgment in favor of the
    Department on that ground.
    II
    We review, not a lower court’s opinion or reasoning, but
    its judgment. Jennings v. Stephens, 
    574 U.S. 271
    , 277
    36      CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    (2015). For this reason, it is well-established that we may
    affirm a district court’s judgment on any grounds supported
    by the record. Cassirer v. Thyssen-Bornemisza Collection
    Found., 
    862 F.3d 951
    , 974 (9th Cir. 2017). An appellee does
    not need to file a notice of cross-appeal to seek affirmance
    on an alternative ground, but if he does not raise the
    alternative theory in his answering brief, the argument
    usually is waived. United States v. Dreyer, 
    804 F.3d 1266
    ,
    1277 (9th Cir. 2015) (en banc). And though an appellee who
    does not cross-appeal may urge affirmance on any ground in
    the record, he may not “attack the decree with a view either
    to enlarging his own rights thereunder or of lessening the
    rights of his adversary.” El Paso Natural Gas Co. v.
    Neztsosie, 
    526 U.S. 473
    , 479 (1999) (quoting United States
    v. American Railway Express Co., 
    265 U.S. 425
    , 435
    (1924)). Whether affirming a judgment on alternative
    grounds impermissibly impacts the rights of a party is
    measured against the party’s “rights under the judgment,”
    not against the effect the alternative rationale may have on
    future litigation. Jennings, 574 U.S. at 276; id. at 278
    (“[M]aking alteration of issue-preclusive effects the
    touchstone of necessity for cross-appeal would require
    cross-appeal for every defense of a judgment on alternative
    grounds.”). If the appellee’s theory would enlarge his own
    rights under the judgment, or diminish the appellant’s, only
    then must a cross-appeal must be taken.
    CBD’s argument that the Department’s attack on the
    2005 order requires a cross-appeal is primarily premised on
    CBD’s belief that sustaining the district court’s judgment on
    the reasoning that Section 402 does not apply to the dugong
    would lessen CBD’s rights. However, CBD had no “rights
    under the judgment” that was totally in the Department’s
    favor. Jennings, 574 U.S. at 276. This is all the more clear
    given today’s decision affirming the district court on the
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER            37
    rationale given in its 2018 order, whereby CBD continues to
    have no rights stemming from this case, and therefore no
    rights that could be impacted by affirming the judgment on
    alternative grounds. What CBD is really trying to avoid by
    arguing the Department is pursuing an unnoticed cross-
    appeal is an adverse precedential decision that could
    preclude CBD from arguing in a future case (at least in this
    Circuit) that Section 402 protects animals. But an affirmance
    on this rationale would not impact CBD’s rights under the
    current judgment, even if it prevented CBD from
    successfully advancing its legal theory in a future case. The
    Supreme Court already rejected a similar, and stronger,
    argument that a notice of cross-appeal was required in
    Jennings when it held that affirming a judgment on an
    alternative theory that makes the issue preclusive effect of
    the judgment more favorable to the appellee, but does not
    affect the scope of the judgment, does not require the
    appellee to notice a cross-appeal. Id. at 278.
    Of course, because we may affirm the district court on
    any grounds supported by the record, we are not obligated to
    address the Department’s arguments regarding the 2005
    order. Although I disagree with the majority that the
    Department needed to file a notice of cross-appeal if it
    wanted us to consider the 2005 order, the majority ultimately
    commits no legal error by declining to address the issue. But
    I find any prudential rationale for sidestepping the question
    lacking. To begin, that the challenged order is 15 years old
    is of little consequence. The denial of the Department’s
    motion for summary judgment in 2005 was not immediately
    appealable. See 
    28 U.S.C. § 1291
    . The first opportunity for
    review of the 2005 order was during the appeal of the initial
    entry of judgment for the Department, which we reversed in
    2017. See CBD I, 868 F.3d at 830. In that litigation the
    Department did initially file a cross-appeal stating it
    38       CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    intended to challenge the 2005 order, which it later
    voluntarily dismissed. Even after dismissing that cross-
    appeal, the Department again noted its objection to the 2005
    order in its answering brief, though it did not seek affirmance
    on that ground. But just because the Department previously
    filed an unnecessary notice of cross-appeal, it is not required
    to do so again. In CBD I, though the Department ultimately
    restricted its arguments to standing and political question
    issues, it did preserve the argument that the 2005 order had
    been wrongly decided. We endorsed that decision then, and
    now, with the question properly presented and serving as a
    predicate issue to the adequacy of the Department’s Section
    402 compliance, we should address it.
    III
    In 2005 the district court erred when it found that Section
    402 applied to the dugong, and I would resolve this case by
    affirming the judgment in the Department’s favor under the
    reasoning that the dugong is not “property” covered by
    Section 402.
    Section 402 reads:
    Prior to the approval of any undertaking
    outside the United States that may directly
    and adversely affect a property that is on the
    World Heritage List or on the applicable
    country’s equivalent of the National Register
    [of Historic Places], the head of a Federal
    agency having direct or indirect jurisdiction
    over the undertaking shall take into account
    the effect of the undertaking on the property
    for purposes of avoiding or mitigating any
    adverse effect.
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER                39
    
    54 U.S.C. § 307101
    (e) (emphasis added). The statute
    provides no specific definition for “property” nor guidance
    on what defines a “country’s equivalent of the National
    Register.” In this case, the dugong is listed for protection
    under Japan’s Law for the Protection of Cultural Property.
    For Section 402 to apply to the dugong, the Law for the
    Protection of Cultural Property must be Japan’s equivalent
    of the National Register, and the dugong must be property as
    the term is used in Section 402.
    First, I believe that the Law for the Protection of Cultural
    Property is the equivalent of the National Register. The
    purpose of the Law for the Protection of Cultural Property is
    “to preserve and utilize cultural properties, so that the culture
    of the Japanese people may be furthered and a contribution
    made to the evolution of world culture.” Law for the
    Protection of Cultural Property, art. 1 (2003), translated by
    Agency for Cultural Affairs, Government of Japan
    (“LPCP”). Likewise, the National Historic Preservation Act,
    which established the National Register of Historic Places,
    has the aim “to foster conditions under which our modern
    society and our historic property can exist in productive
    harmony and fulfill the social, economic, and other
    requirements of present and future generations.” 
    54 U.S.C. § 300101
    . Both laws allow for the official designation of
    certain properties and require actions to ensure preservation
    of the designated properties. The key difference that is
    relevant here is that Japan’s law allows for the protection of
    greater types of property—such as customs and animals—
    than the National Register of Historic Places, which is
    limited to “districts, sites, buildings, structures, and objects.”
    
    54 U.S.C. § 302101
    . However, Japan’s list of cultural
    properties also includes these same categories of property.
    See LPCP art. 2. Questions raised by items on Japan’s list of
    protected properties that go beyond those eligible for
    40        CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    inclusion on the National Register, like the dugong, are
    better conceptualized as issues of whether those items are
    “property” as defined in Section 402, not whether Japan’s
    list is equivalent to the National Register.
    As to whether a dugong is “property” as the term is used
    in Section 402, I would hold that it is not, and that “property”
    protected by Section 402 is limited to a “district, site,
    building, structure, or object,” 
    54 U.S.C. § 300308
    , or to
    items that meet the definition of “cultural heritage” 1 or
    “natural heritage” 2 as the terms are defined in the United
    1
    For the purpose of this Convention, the following shall be
    considered as “cultural heritage”:
    monuments: architectural works, works of
    monumental sculpture and painting, elements or
    structures of an archaeological nature, inscriptions,
    cave dwellings and combinations of features, which
    are of outstanding universal value from the point of
    view of history, art or science;
    groups of buildings: groups of separate or connected
    buildings which, because of their architecture, their
    homogeneity or their place in the landscape, are of
    outstanding universal value from the point of view of
    history, art or science;
    sites: works of man or the combined works of nature
    and man, and areas including archaeological sites
    which are of outstanding universal value from the
    historical, aesthetic, ethnological or anthropological
    point of view.
    World Heritage Convention art. 1.
    2
    For the purposes of this Convention, the following shall be
    considered as “natural heritage”:
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER                       41
    Nations World Heritage Convention, see Convention
    Concerning the Protection of the World Cultural and Natural
    Heritage, arts. 1–2, Nov. 16, 1972, 1037 U.N.T.S. 151. The
    first part of this definition of “property” in Section 402—a
    “district, site, building, structure, or object”—is derived
    from the statutory definition of “historic property” in the
    NHPA 3 that was enacted at the same time as Section 402.
    See Pub. L. 96-515, §§ 402, 501, 
    94 Stat. 2987
    , 3000–01
    (1980). The second part of the definition of “property” in
    Section 402—items that meet the World Heritage
    Convention definitions for “cultural heritage” or “natural
    heritage,”—results from the enactment of Section 402 to
    further “participation by the United States in the World
    Heritage Convention.” 
    54 U.S.C. § 307101
    (b). The
    alternative to limiting the definition of “property” in the
    natural features consisting of physical and biological
    formations or groups of such formations, which are of
    outstanding universal value from the aesthetic or
    scientific point of view;
    geological and physiographical formations and
    precisely delineated areas which constitute the habitat
    of threatened species of animals and plants of
    outstanding universal value from the point of view of
    science or conservation;
    natural sites or precisely delineated natural areas of
    outstanding universal value from the point of view of
    science, conservation or natural beauty.
    World Heritage Convention art. 2.
    3
    “In this division, the term ‘historic property’ means any prehistoric
    or historic district, site, building, structure, or object included on, or
    eligible for inclusion on, the National Register, including artifacts,
    records, and material remains relating to the district, site, building,
    structure, or object.” 
    54 U.S.C. § 300308
    .
    42      CTR. FOR BIOLOGICAL DIVERSITY V. ESPER
    manner above is that all items included for protection on any
    country’s equivalent of the National Register receive
    protection under Section 402. See Dugong, 
    2005 WL 522106
    , at *8; Emily Monteith, Note, Lost in Translation:
    Discerning the International Equivalent of the National
    Register of Historic Places, 
    59 DePaul L. Rev. 1017
    , 1051
    (2010). Such a broad definition would go well beyond
    ensuring “participation by the United States in the World
    Heritage Convention” and beyond extending NHPA-type
    protection extraterritorially. 
    54 U.S.C. § 307101
    (b).
    Therefore, I do not read any ambiguity over the definition of
    “property” in Section 402 as exceeding the scope of property
    protected by the World Heritage Convention and the NHPA,
    or as delegating the definition to various foreign laws.
    Applying this definition of “property” to Section 402, the
    dugong is not covered. This is because both the NHPA and
    the World Heritage Convention limit protection to specific
    locations and to tangible, inanimate objects. In its 2005
    order, the district court found that the dugong was an
    “object” as the term was used in the NHPA, but this was in
    error. See Dugong, 
    2005 WL 522106
    , at *9–10. Applying
    noscitur a sociis, “object,” as part of a list containing
    “district, site, building, [and] structure,” does not include
    animals. See 
    54 U.S.C. § 300308
    . Although Department of
    Interior regulations defining an “object” define it as “a
    material thing,” and are not explicit that material things do
    not include animals, the examples the regulation provides
    are all inanimate objects. See 
    36 C.F.R. § 60.3
    (j). That the
    NHPA definition of “object” excludes animals is all the
    clearer considering there are no animals or wildlife listed on
    CTR. FOR BIOLOGICAL DIVERSITY V. ESPER                        43
    the National Register of Historic Places. 4 Likewise, the
    World Heritage Convention does not include animals as
    eligible for inclusion on the World Heritage List as either
    cultural heritage or natural heritage. See World Heritage
    Convention arts. 1–2. The definition of “natural heritage”
    eligible for inclusion on the World Heritage List includes
    “precisely delineated areas which constitute the habitat of
    threatened species of animals” but does not allow for the
    protection of specific animals wherever they may be. 
    Id.
    art. 2 (emphasis added).
    Because Section 402’s definition of “property” does not
    include animals, the district court’s decision to the contrary
    misstated the law, and the Department was entitled to
    judgment in its favor resulting from its 2005 motion for
    summary judgment. Eventually, the district court correctly
    entered judgment for the Department in 2018, after it found
    the Department complied with Section 402. I would affirm
    the district court’s judgment but do so on the ground that
    Section 402 does not apply to the dugong as a matter of law.
    4
    In some instances, trees or groups of trees are listed on the National
    Register, but one clear difference between a tree and an animal is that a
    tree may constitute a “site,” while an animal may not.