Chad Brackeen v. David Bernhardt ( 2019 )


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  •      Case: 18-11479   Document: 00515071068     Page: 1   Date Filed: 08/09/2019
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE FIFTH CIRCUIT     United States Court of Appeals
    Fifth Circuit
    FILED
    August 9, 2019
    No. 18-11479
    Lyle W. Cayce
    Clerk
    CHAD EVERET BRACKEEN; JENNIFER KAY BRACKEEN; STATE OF
    TEXAS; ALTAGRACIA SOCORRO HERNANDEZ; STATE OF INDIANA;
    JASON CLIFFORD; FRANK NICHOLAS LIBRETTI; STATE OF
    LOUISIANA; HEATHER LYNN LIBRETTI; DANIELLE CLIFFORD,
    Plaintiffs - Appellees
    v.
    DAVID BERNHARDT, SECRETARY, U.S. DEPARTMENT OF THE
    INTERIOR; TARA SWEENEY, in her official capacity as Acting Assistant
    Secretary for Indian Affairs; BUREAU OF INDIAN AFFAIRS; UNITED
    STATES DEPARTMENT OF INTERIOR; UNITED STATES OF AMERICA;
    ALEX AZAR, In his official capacity as Secretary of the United States
    Department of Health and Human Services; UNITED STATES
    DEPARTMENT OF HEALTH AND HUMAN SERVICES,
    Defendants - Appellants
    CHEROKEE NATION; ONEIDA NATION; QUINAULT INDIAN NATION;
    MORONGO BAND OF MISSION INDIANS,
    Intervenor Defendants - Appellants
    Appeals from the United States District Court
    for the Northern District of Texas
    Case: 18-11479        Document: 00515071068          Page: 2      Date Filed: 08/09/2019
    No. 18-11479
    Before WIENER, DENNIS, and OWEN, Circuit Judges. 1
    JAMES L. DENNIS, Circuit Judge:
    This case presents facial constitutional challenges to the Indian Child
    Welfare Act of 1978 (ICWA) and statutory and constitutional challenges to the
    2016 administrative rule (the Final Rule) that was promulgated by the
    Department of the Interior to clarify provisions of ICWA. Plaintiffs are the
    states of Texas, Indiana, and Louisiana, and seven individuals seeking to adopt
    Indian children. Defendants are the United States of America, several federal
    agencies and officials in their official capacities, and five intervening Indian
    tribes. Defendants moved to dismiss the complaint for lack of subject matter
    jurisdiction, but the district court denied the motion, concluding, as relevant
    to this appeal, that Plaintiffs had Article III standing. The district court then
    granted summary judgment in favor of Plaintiffs, ruling that provisions of
    ICWA and the Final Rule violated equal protection, the Tenth Amendment,
    the    nondelegation        doctrine,    and     the   Administrative        Procedure    Act.
    Defendants appealed. Although we AFFIRM the district court’s ruling that
    Plaintiffs had standing, we REVERSE the district court’s grant of summary
    judgment to Plaintiffs and RENDER judgment in favor of Defendants.
    BACKGROUND
    I. The Indian Child Welfare Act (ICWA)
    Congress enacted the Indian Child Welfare Act of 1978 (ICWA), 25
    U.S.C. §§ 1901 et seq., to address rising concerns over “abusive child welfare
    practices that resulted in the separation of large numbers of Indian children
    from their families and tribes through adoption or foster care placement,
    usually in non-Indian homes.” Miss. Band Choctaw Indians v. Holyfield, 490
    1   Judge Owen will file a partial dissenting opinion shortly.
    2
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    U.S. 30, 32 (1989). Recognizing that a “special relationship” exists between the
    United States and Indian tribes, Congress made the following findings:
    Congress has plenary power over Indian affairs. 25 U.S.C. § 1901(1)
    (citing U.S. CONST. art. I, section 8, cl. 3 (“The Congress shall have Power . . .
    To regulate Commerce . . . with the Indian Tribes.”)).
    “[T]here is no resource that is more vital to the continued existence and
    integrity of Indian tribes than their children . . . .” 
    Id. at §
    1901(3).
    “[A]n alarmingly high percentage of Indian families are broken up by the
    removal, often unwarranted, of their children from them by nontribal public
    and private agencies and that an alarmingly high percentage of such children
    are placed in non-Indian foster and adoptive homes and institutions.” 
    Id. at §
    1901(4).
    “States exercising their recognized jurisdiction over Indian child custody
    proceedings through administrative and judicial bodies, have often failed to
    recognize the essential tribal relations of Indian people and the cultural and
    social standards prevailing in Indian communities and families.”             
    Id. at §
    1901(5).
    In light of these findings, Congress declared that it was the policy of the
    United States “to protect the best interests of Indian children and to promote
    the stability and security of Indian tribes and families by the establishment of
    minimum Federal standards for the removal of Indian children from their
    families and the placement of such children in foster or adoptive homes which
    will reflect the unique values of Indian culture, and by providing for assistance
    to Indian tribes in the operation of child and family service programs.” 
    Id. at §
    1902.
    ICWA applies in state court child custody proceedings involving an
    “Indian child,” defined as “any unmarried person who is under age eighteen
    and is either (a) a member of an Indian tribe or (b) is eligible for membership
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    in an Indian tribe and is the biological child of a member of an Indian tribe.”
    
    Id. at §
    1903(4). In proceedings for the foster care placement or termination of
    parental rights, ICWA provides “the Indian custodian of the child and the
    Indian child’s tribe [] a right to intervene at any point in the proceeding.” 
    Id. at §
    1911(c). Where such proceedings are involuntary, ICWA requires that the
    parent, the Indian custodian, the child’s tribe, or the Secretary of the United
    States Department of the Interior (Secretary or Secretary of the Interior) be
    notified of pending proceedings and of their right to intervene. 
    Id. at §
    1912.
    In voluntary proceedings for the termination of parental rights or adoptive
    placement of an Indian child, the parent can withdraw consent for any reason
    prior to entry of a final decree of adoption or termination, and the child must
    be returned to the parent. 
    Id. at §
    1913(c). If consent was obtained through
    fraud or duress, a parent may petition to withdraw consent within two years
    after the final decree of adoption and, upon a showing of fraud or duress, the
    court must vacate the decree and return the child to the parent.          
    Id. at §
    1913(d). An Indian child, a parent or Indian custodian from whose custody
    the child was removed, or the child’s tribe may file a petition in any court of
    competent jurisdiction to invalidate an action in state court for foster care
    placement or termination of parental rights if the action violated any provision
    of ICWA §§ 1911–13. 
    Id. at §
    1914.
    ICWA further sets forth placement preferences for foster care,
    preadoptive, and adoptive proceedings involving Indian children. Section 1915
    requires that “[i]n any adoptive placement of an Indian child under State law,
    a preference shall be given, in the absence of good cause to the contrary, to a
    placement with: (1) a member of the child’s extended family; (2) other members
    of the Indian child’s tribe; or (3) other Indian families.” 
    Id. at §
    1915(a).
    Similar requirements are set for foster care or preadoptive placements. 
    Id. at §
    1915(b). If a tribe establishes by resolution a different order of preferences,
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    the state court or agency effecting the placement “shall follow [the tribe’s] order
    so long as the placement is the least restrictive setting appropriate to the
    particular needs of the child.” 
    Id. at §
    1915(c).
    The state in which an Indian child’s placement was made shall maintain
    records of the placement, which shall be made available at any time upon
    request by the Secretary or the child’s tribe. 
    Id. at §
    1915(e). A state court
    entering a final decree in an adoptive placement “shall provide the Secretary
    with a copy of the decree or order” and information as necessary regarding “(1)
    the name and tribal affiliation of the child; (2) the names and addresses of the
    biological parents; (3) the names and addresses of the adoptive parents; and
    (4) the identity of any agency having files or information relating to such
    adoptive placement.” 
    Id. at §
    1951(a). ICWA’s severability clause provides
    that “[i]f any provision of this chapter or the applicability thereof is held
    invalid, the remaining provisions of this chapter shall not be affected thereby.”
    
    Id. at §
    1963.
    II. The Final Rule
    ICWA provides that “the Secretary [of the Interior] shall promulgate
    such rules and regulations as may be necessary to carry out [its] provisions.”
    25 U.S.C. § 1952. In 1979, the Bureau of Indian Affairs (BIA) promulgated
    guidelines (the “1979 Guidelines”) intended to assist state courts in
    implementing ICWA but without “binding legislative effect.” Guidelines for
    State Courts; Indian Child Custody Proceedings, 44 Fed. Reg. 67,584 (Nov. 26,
    1979). The 1979 Guidelines left the “primary responsibility” of interpreting
    certain language in ICWA “with the [state] courts that decide Indian child
    custody cases.” 
    Id. However, in
    June 2016, the BIA promulgated the Final
    Rule to “clarify the minimum Federal standards governing implementation of
    [ICWA]” and to ensure that it “is applied in all States consistent with the Act’s
    express language, Congress’s intent in enacting the statute, and to promote
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    the stability and security of Indian tribes and families.” 25 C.F.R. § 23.101;
    Indian Child Welfare Act Proceedings, 81 Fed. Reg. 38,778, 38,868 (June 14,
    2016). The Final Rule explained that while the BIA “initially hoped that
    binding regulations would not be necessary to carry out [ICWA], a third of a
    century of experience has confirmed the need for more uniformity in the
    interpretation and application of this important Federal law.” 81 Fed. Reg. at
    38,782.
    The Final Rule provides that states have the responsibility of
    determining whether a child is an “Indian child” subject to ICWA’s
    requirements. 25 C.F.R. §§ 23.107–22; 81 Fed. Reg. at 38,778, 38,869–73. The
    Final Rule also sets forth notice and recordkeeping requirements for states, see
    25 U.S.C. §§ 23.140–41; 81 Fed. Reg. at 38,778, 38,875–76, and requirements
    for states and individuals regarding voluntary proceedings and parental
    withdrawal of consent, see 25 C.F.R. §§ 23.124–28; 81 Fed. Reg. at 38,778,
    38,873–74. The Final Rule also restates ICWA’s placement preferences and
    clarifies when they apply and when states may depart from them. See 25
    C.F.R. §§ 23.129–32; 81 Fed. Reg. at 38,778, 38,874–75.
    III. The Instant Action
    A. Parties
    1. Plaintiffs
    Plaintiffs in this action are the states of Texas, Louisiana, and Indiana, 2
    (collectively, the “State Plaintiffs”), and seven individual Plaintiffs—Chad and
    Jennifer Brackeen (the “Brackeens”), Nick and Heather Libretti (the
    “Librettis”), Altagracia Socorro Hernandez (“Hernandez”), and Jason and
    2 There are three federally recognized tribes in Texas: the Yselta del Sur Pueblo, the
    Kickapoo Tribe, and the Alabama-Coushatta Tribe. There are four federally recognized
    tribes in Louisiana: the Chitimacha Tribe, the Coushatta Tribe, the Tunica-Biloxi Tribe, and
    the Jena Band of Choctaw Indians. There is one federally recognized tribe in Indiana: the
    Pokagon Band of Potawatomi Indians.
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    Danielle Clifford (the “Cliffords”) (collectively, “Individual Plaintiffs”) (together
    with State Plaintiffs, “Plaintiffs”).
    a. The Brackeens & A.L.M.
    At the time their initial complaint was filed in the district court, the
    Brackeens sought to adopt A.L.M., who falls within ICWA’s definition of an
    “Indian Child.” His biological mother is an enrolled member of the Navajo
    Nation and his biological father is an enrolled member of the Cherokee Nation.
    When A.L.M. was ten months old, Texas’s Child Protective Services (“CPS”)
    removed him from his paternal grandmother’s custody and placed him in foster
    care with the Brackeens. Both the Navajo Nation and the Cherokee Nation
    were notified pursuant to ICWA and the Final Rule. A.L.M. lived with the
    Brackeens for more than sixteen months before they sought to adopt him with
    the support of his biological parents and paternal grandmother. In May 2017,
    a Texas court, in voluntary proceedings, terminated the parental rights of
    A.L.M.’s biological parents, making him eligible for adoption under Texas law.
    Shortly thereafter, the Navajo Nation notified the state court that it had
    located a potential alternative placement for A.L.M. with non-relatives in New
    Mexico, though this placement ultimately failed to materialize. In July 2017,
    the Brackeens filed an original petition for adoption, and the Cherokee Nation
    and Navajo Nation were notified in compliance with ICWA. The Navajo Nation
    and the Cherokee Nation reached an agreement whereby the Navajo Nation
    was designated as A.L.M.’s tribe for purposes of ICWA’s application in the state
    proceedings. No one intervened in the Texas adoption proceeding or otherwise
    formally sought to adopt A.L.M. The Brackeens entered into a settlement with
    the Texas state agency and A.L.M.’s guardian ad litem specifying that, because
    no one else sought to adopt A.L.M., ICWA’s placement preferences did not
    apply. In January 2018, the Brackeens successfully petitioned to adopt A.L.M.
    The Brackeens initially alleged in their complaint that they would like to
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    continue to provide foster care for and possibly adopt additional children in
    need, but their experience adopting A.L.M. made them reluctant to provide
    foster care for other Indian children in the future. Since their complaint was
    filed, the Brackeens have sought to adopt A.L.M.’s sister, Y.R.J. in Texas state
    court. Y.R.J., like her brother, is an Indian Child for purposes of ICWA. The
    Navajo Nation contests the adoption. On February 2, 2019, the Texas court
    granted the Brackeens’ motion to declare ICWA inapplicable as a violation of
    the Texas constitution, but “conscientiously refrain[ed]” from ruling on the
    Brackeens’ claims under the United States Constitution pending our
    resolution of the instant appeal.
    b. The Librettis & Baby O.
    The Librettis live in Nevada and sought to adopt Baby O. when she was
    born in March 2016. Baby O.’s biological mother, Hernandez, wished to place
    Baby O. for adoption at her birth, though Hernandez has continued to be a part
    of Baby O.’s life and she and the Librettis visit each other regularly. Baby O.’s
    biological father, E.R.G., descends from members of the Ysleta del sur Pueblo
    Tribe (the “Pueblo Tribe”), located in El Paso, Texas, and was a registered
    member at the time Baby O. was born. The Pueblo Tribe intervened in the
    Nevada custody proceedings seeking to remove Baby O. from the Librettis.
    Once the Librettis joined the challenge to the constitutionality of the ICWA
    and the Final Rule, the Pueblo Tribe indicated that it was willing settle. The
    Librettis agreed to a settlement with the tribe that would permit them to
    petition for adoption of Baby O. The Pueblo Tribe agreed not to contest the
    Librettis’ adoption of Baby O., and on December 19, 2018, the Nevada state
    court issued a decree of adoption, declaring that the Librettis were Baby O.’s
    lawful parents. Like the Brackeens, the Librettis alleged that they intend to
    provide foster care for and possibly adopt additional children in need but are
    reluctant to foster Indian children after this experience.
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    c. The Cliffords & Child P.
    The Cliffords live in Minnesota and seek to adopt Child P., whose
    maternal grandmother is a registered member of the White Earth Band of
    Ojibwe Tribe (the “White Earth Band”). Child P. is a member of the White
    Earth Band for purposes of ICWA’s application in the Minnesota state court
    proceedings. Pursuant to ICWA section 1915’s placement preferences, county
    officials removed Child P. from the Cliffords’ custody and, in January 2018,
    placed her in the care of her maternal grandmother, whose foster license had
    been revoked. Child P.’s guardian ad litem supports the Cliffords’ efforts to
    adopt her and agrees that the adoption is in Child P.’s best interest. The
    Cliffords and Child P. remain separated, and the Cliffords face heightened
    legal barriers to adopting her. On January 17, 2019, the Minnesota court
    denied the Cliffords’ motion for adoptive placement.
    2. Defendants
    Defendants are the United States of America; the United States
    Department of the Interior and its Secretary Ryan Zinke, in his official
    capacity; the BIA and its Director Bryan Rice, in his official capacity; the BIA
    Principal Assistant Secretary for Indian Affairs John Tahsuda III, in his
    official capacity; and the Department of Health and Human Services (“HHS”)
    and its Secretary Alex M. Azar II, in his official capacity (collectively the
    “Federal Defendants”). Shortly after this case was filed in the district court,
    the Cherokee Nation, Oneida Nation, Quinalt Indian Nation, and Morengo
    Band of Mission Indians (collectively, the “Tribal Defendants”) moved to
    intervene, and the district court granted the motion. On appeal, we granted
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    the Navajo Nation’s motion to intervene as a defendant 3 (together with Federal
    and Tribal Defendants, “Defendants”).
    B. Procedural History
    Plaintiffs filed the instant action against the Federal Defendants in
    October 2017, alleging that the Final Rule and certain provisions of ICWA are
    unconstitutional and seeking injunctive and declaratory relief.                 Plaintiffs
    argued that ICWA and the Final Rule violated equal protection and
    substantive     due     process     under     the    Fifth    Amendment         and     the
    anticommandeering doctrine that arises from the Tenth Amendment.
    Plaintiffs additionally sought a declaration that provisions of ICWA and the
    Final Rule violated the nondelegation doctrine and the Administrative
    Procedure Act (APA). Defendants moved to dismiss, alleging that Plaintiffs
    lacked standing. The district court denied the motion. All parties filed cross-
    motions for summary judgment. The district court granted Plaintiffs’ motion
    for summary judgment in part, concluding that ICWA and the Final Rule
    violated equal protection, the Tenth Amendment, and the nondelegation
    doctrine, and that the challenged portions of the Final Rule were invalid under
    the APA. 4 Defendants appealed. A panel of this court subsequently stayed the
    district court’s judgment pending further order of this court. In total, fourteen
    amicus briefs were filed in this court, including a brief in support of Plaintiffs
    and affirmance filed by the state of Ohio; and a brief in support of Defendants
    and reversal filed by the states of California, Alaska, Arizona, Colorado, Idaho,
    3  The Navajo Nation had previously moved to intervene twice in the district court.
    The first motion was for the limited purpose of seeking dismissal pursuant to Rule 19, which
    the district court denied. The Navajo Nation filed a second motion to intervene for purposes
    of appeal after the district court’s summary judgment order. The district court deferred
    decision on the motion pending further action by this court, at which time the Navajo Nation
    filed the motion directly with this court.
    4 The district court denied Plaintiffs’ substantive Due Process claim, from which
    Plaintiffs do not appeal.
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    Illinois, Iowa, Maine, Massachusetts, Michigan, Minnesota, Mississippi,
    Montana, New Jersey, New Mexico, Oregon, Rhode Island, Utah, Virginia,
    Washington, and Wisconsin.
    STANDARD OF REVIEW
    We review a district court’s grant of summary judgment de novo. See
    Texas v. United States, 
    497 F.3d 491
    , 495 (5th Cir. 2007). Summary judgment
    is appropriate when the movant has demonstrated “that there is no genuine
    dispute as to any material fact and the movant is entitled to judgment as a
    matter of law.” FED. R. CIV. P. 56(a). A genuine dispute of material fact exists
    “if the evidence is such that a reasonable jury could return a verdict for the
    nonmoving party.” Anderson v. Liberty Lobby, Inc., 
    477 U.S. 242
    , 248 (1986).
    DISCUSSION
    I. Article III Standing
    Defendants first contend that Plaintiffs lack standing to challenge ICWA
    and the Final Rule. The district court denied Defendants’ motion to dismiss
    on this basis, concluding that Individual Plaintiffs had standing to bring an
    equal protection claim; State Plaintiffs had standing to challenge provisions of
    ICWA and the Final Rule on the grounds that they violated the Tenth
    Amendment and the nondelegation doctrine; and all Plaintiffs had standing to
    bring an APA claim challenging the validity of the Final Rule.
    Article III limits the power of federal courts to “Cases” and
    “Controversies.” See Spokeo, Inc. v. Robins, 
    136 S. Ct. 1540
    , 1547 (2016) (citing
    U.S. CONST. art. III, § 2). “Standing to sue is a doctrine rooted in the traditional
    understanding of a case or controversy.” 
    Id. To meet
    the Article III standing
    requirement, plaintiffs must demonstrate “(1) an injury that is (2) fairly
    traceable to the defendant’s allegedly unlawful conduct and that is (3) likely to
    be redressed by the requested relief.” Lujan v. Defs. of Wildlife, 
    504 U.S. 555
    ,
    590 (1992) (internal quotations omitted). A plaintiff seeking equitable relief
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    must demonstrate a likelihood of future injury in addition to past harm. See
    City of Los Angeles v. Lyons, 
    461 U.S. 95
    , 105 (1983). This injury must be
    “concrete and particularized” and “actual or imminent, not conjectural or
    hypothetical.” See 
    Lujan, 504 U.S. at 560
    (cleaned up). “[S]tanding is not
    dispensed in gross,” and “a plaintiff must demonstrate standing for each claim
    he seeks to press and for each form of relief that is sought.” Town of Chester,
    N.Y. v. Laroe Estates, Inc., 
    137 S. Ct. 1645
    , 1650 (2017) (quoting Davis v. Fed.
    Election Comm’n, 
    554 U.S. 724
    , 734 (2008)). “[T]he presence of one party with
    standing is sufficient to satisfy Article III’s case-or-controversy requirement.”
    Rumsfeld v. Forum for Acad. & Institutional Rights, Inc., 
    547 U.S. 47
    , 53 n.2
    (2006). “This court reviews questions of standing de novo.” Nat’l Rifle Ass’n of
    Am., Inc. v. McCraw, 
    719 F.3d 338
    , 343 (5th Cir. 2013).
    A. Standing to Bring Equal Protection Claim
    Plaintiffs challenged ICWA sections 1915(a)–(b), 1913(d), and 1914 and
    Final Rule sections 23.129–32 on equal protection grounds, alleging that these
    provisions impose regulatory burdens on non-Indian families seeking to adopt
    Indian children that are not similarly imposed on Indian families who seek to
    adopt Indian children. The district court concluded that Individual Plaintiffs
    suffered and continued to suffer injuries when their efforts to adopt Indian
    children were burdened by ICWA and the Final Rule; that their injuries were
    fairly traceable to ICWA and the Final Rule because these authorities
    mandated state compliance; and that these injuries were redressable because
    if ICWA and the Final Rule were invalidated, then state courts would no longer
    be required to follow them. Defendants disagree, arguing that the Individual
    Plaintiffs cannot demonstrate an injury in fact or redressability and thus lack
    standing to bring an equal protection claim.       For the reasons below, we
    conclude that the Brackeens have standing to assert an equal protection claim
    as to ICWA sections 1915(a)–(b) and Final Rule sections 23.129–32, but as
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    discussed below, not as to ICWA sections 1913–14. Accordingly, because one
    Plaintiff has standing, the “case-or-controversy requirement” is satisfied as to
    this claim, and we do not analyze whether any other Individual Plaintiff has
    standing to raise it. 5 See 
    Rumsfeld, 547 U.S. at 53
    n.2.
    The district court concluded that ICWA section 1913(d), which allows a
    parent to petition the court to vacate a final decree of adoption on the grounds
    that consent was obtained through fraud or duress, left the Brackeens’
    adoption of A.L.M. vulnerable to collateral attack for two years. Defendants
    argue that section 1914, 6 and not section 1913(d), applies to the Brackeens’
    state court proceedings and that, in any event, an injury premised on potential
    future collateral attack under either provision is too speculative. We need not
    decide which provision applies here, as neither the Brackeens nor any of the
    Individual Plaintiffs havesuffered an injury under either provision. Plaintiffs
    do not assert that A.L.M.’s biological parents, the Navajo Nation, or any other
    party seeks to invalidate the Brackeens’ adoption of A.L.M. under either
    provision. Plaintiffs’ proffered injury under section 1913 or section 1914 is
    therefore too speculative to support standing. See 
    Lujan, 504 U.S. at 560
    ; see
    also Clapper v. Amnesty Int’l USA, 
    568 U.S. 398
    , 409 (2013) (“[T]hreatened
    injury must be certainly impending to constitute injury in fact, and []
    [a]llegations of possible future injury are not sufficient.” (cleaned up)). To the
    extent Plaintiffs argue that an injury arises from their attempts to avoid
    5 State Plaintiffs argue that they have standing to bring an equal protection challenge
    in parens patriae on behalf of their citizens. We disagree. See South Carolina v. Katzenbach,
    
    383 U.S. 301
    , 324 (1966) (“[A] State [does not] have standing as the parent of its citizens to
    invoke [the Fifth Amendment Due Process Clause] against the Federal Government, the
    ultimate parens patriae of every American citizen.”).
    6 “Any Indian child who is the subject of any action for foster care placement or
    termination of parental rights under State law, any parent or Indian custodian from whose
    custody such child was removed, and the Indian child’s tribe may petition any court of
    competent jurisdiction to invalidate such action upon a showing that such action violated any
    provision of sections 1911, 1912, and 1913 of this title.” 25 U.S.C. § 1914.
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    collateral attack under section 1914 by complying with sections 1911–13,
    “costs incurred to avoid injury are insufficient to create standing” where the
    injury is not certainly impending. See 
    Clapper, 568 U.S. at 417
    .
    The district court also concluded that ICWA section 1915, and
    sections 23.129–32 of the Final Rule, which clarify section 1915, gave rise to
    an injury from an increased regulatory burden.           We agree.     Prior to the
    finalization of the Brackeens’ adoption of A.L.M., the Navajo Nation notified
    the state court that it had located a potential alternative placement for A.L.M.
    in New Mexico.       Though that alternative placement ultimately failed to
    materialize, the regulatory burdens ICWA section 1915 and Final Rule
    sections 23.129–32    imposed     on   the   Brackeens    in    A.L.M.’s    adoption
    proceedings, which were ongoing at the time the complaint was filed, are
    sufficient to demonstrate injury. See Contender Farms, L.L.P. v. U.S. Dep’t of
    Agric., 
    779 F.3d 258
    , 266 (5th Cir. 2015) (“An increased regulatory burden
    typically satisfies the injury in fact requirement.”); see also Rockwell Int’l Corp.
    v. United States, 
    549 U.S. 457
    , 473–74 (2007) (standing is assessed at the time
    the complaint was filed); Friends of the Earth, Inc. v. Laidlaw Envtl. Servs.
    (TOC), Inc., 
    528 U.S. 167
    , 184 (2000) (discussing 
    Lyons, 461 U.S. at 108
    , and
    finding the injury requirement satisfied where the alleged harmful conduct
    was occurring when the complaint was filed).
    Defendants contend that the Brackeens’ challenge to section 1915 and
    sections 23.129–32 is moot. They argue that, because the Brackeens’ adoption
    of A.L.M. was finalized in January 2018 and the Navajo Nation will not seek
    to challenge the adoption, section 1915’s placement preferences no longer
    apply in A.L.M.’s adoption proceedings. Plaintiffs argue that section 1915’s
    placement preferences impose on them the ongoing injury of increased
    regulatory burdens in their proceedings to adopt A.L.M.’s sister, Y.R.J., which
    the Navajo Nation currently opposes in Texas state court.
    14
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    “A corollary to this case-or-controversy requirement is that an actual
    controversy must be extant at all stages of review, not merely at the time the
    complaint is filed.” Genesis Healthcare Corp. v. Symczyk, 
    569 U.S. 66
    , 71
    (2013). “[A] case is moot when the issues presented are no longer live or the
    parties lack a legally cognizable interest in the outcome.” Powell v.
    McCormack, 
    395 U.S. 486
    , 496 (1969)(internal quotation marks omitted).
    However, mootness will not render a case non-justiciable where the dispute is
    one that is “capable of repetition, yet evading review.” See Murphy v. Hunt,
    
    455 U.S. 478
    , 482 (1982). “That exception applies where (1) the challenged
    action is in its duration too short to be fully litigated prior to cessation or
    expiration, and (2) there is a reasonable expectation that the same complaining
    party will be subject to the same action again.” Davis v. Fed. Election Comm’n,
    
    554 U.S. 724
    , 735 (2008) (internal citations and quotations omitted). Here, the
    Brackeens were unable to fully litigate a challenge to section 1915 before
    successfully adopting A.L.M.          Additionally, they have demonstrated a
    reasonable expectation that they will be subject to section 1915’s regulatory
    burdens in their adoption proceedings involving A.L.M.’s sister, Y.R.J. Thus,
    the Brackeens’ challenge to section 1915 is justiciable on the grounds that it is
    capable of repetition, yet evading review. See 
    Hunt, 455 U.S. at 482
    .
    Having thus found an injury with respect to ICWA section 1915 and
    Final    Rule   sections 23.129–32,    we     consider   whether   causation    and
    redressability are met here. See 
    Lujan, 504 U.S. at 590
    . The Brackeens’
    alleged injury is fairly traceable to the actions of at least some of the Federal
    Defendants, who bear some responsibility for the regulatory burdens imposed
    by ICWA and the Final Rule. See Contender Farms, 
    L.L.P., 779 F.3d at 266
    (noting that causation “flow[ed] naturally from” a regulatory injury).
    Additionally, the Brackeens have demonstrated a likelihood that their injury
    will be redressed by a favorable ruling of this court. In the Brackeens’ ongoing
    15
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    proceedings to adopt Y.R.J., the Texas court has indicated that it will refrain
    from ruling on the Brackeens’ federal constitutional claims pending a ruling
    from this court.       Accordingly, Plaintiffs have standing to bring an equal
    protection claim challenging ICWA section 1915(a)–(b) and Final Rule sections
    23.129–32. See 
    Lujan, 504 U.S. at 590
    ; 
    Rumsfeld, 547 U.S. at 53
    n.2.
    B. Standing to Bring Administrative Procedure Act Claim
    Plaintiffs first argue that ICWA does not authorize the Secretary of the
    Interior to promulgate binding rules and regulations, and the Final Rule is
    therefore invalid under the APA. The district court ruled that State Plaintiffs
    had standing to bring this claim, determining that the Final Rule injured State
    Plaintiffs by intruding upon their interests as quasi-sovereigns to control the
    domestic affairs within their states. 7           A state may be entitled to “special
    solicitude” in our standing analysis if the state is vested by statute with a
    procedural right to file suit to protect an interest and the state has suffered an
    injury to its “quasi-sovereign interests.” Massachusetts v. EPA, 
    549 U.S. 497
    ,
    518–20 (2007) (holding that the Clean Air Act provided Massachusetts a
    procedural right to challenge the EPA’s rulemaking, and Massachusetts
    suffered an injury in its capacity as a quasi-sovereign landowner due to rising
    sea levels associated with climate change). Applying Massachusetts, this court
    in Texas v. United States held that Texas had standing to challenge the
    Department of Homeland Security’s implementation and expansion of the
    Deferred Action for Childhood Arrivals program (DACA) under the APA. See
    
    809 F.3d 134
    , 152 (5th Cir. 2015). This court reasoned that Texas was entitled
    to special solicitude on the grounds that the APA created a procedural right to
    7The district court also found an injury based on the Social Security Act’s conditioning
    of funding on states’ compliance with ICWA. However, because we find that Plaintiffs have
    standing on other grounds, we decline to decide whether they have demonstrated standing
    based on an alleged injury caused by the SSA.
    16
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    challenge the DHS’s actions, and DHS’s actions affected states’ sovereign
    interest in creating and enforcing a legal code.       See 
    id. at 153
    (internal
    quotations omitted).
    Likewise, here, the APA provides State Plaintiffs a procedural right to
    challenge the Final Rule. See id.; 5 U.S.C. § 702. Moreover, State Plaintiffs
    allege that the Final Rule affects their sovereign interest in controlling child
    custody proceedings in state courts. See 
    Texas, 809 F.3d at 153
    (recognizing
    that, pursuant to a sovereign interest in creating and enforcing a legal code,
    states may have standing based on, inter alia, federal preemption of state law).
    Thus, State Plaintiffs are entitled to special solicitude in our standing inquiry.
    With this in mind, we find that the elements of standing are satisfied. If, as
    State Plaintiffs alleged, the Secretary promulgated a rule binding on states
    without the authority to do so, then State Plaintiffs have suffered a concrete
    injury to their sovereign interest in controlling child custody proceedings that
    was caused by the Final Rule. Additionally, though state courts and agencies
    are not bound by this court’s precedent, a favorable ruling from this court
    would remedy the alleged injury to states by making their compliance with
    ICWA and the Final Rule optional rather than compulsory. See 
    Massachusetts, 549 U.S. at 521
    (finding redressability where the requested relief would prompt
    the agency to “reduce th[e] risk” of harm to the state).
    C. Standing to Bring Tenth Amendment Claim
    For similar reasons, the district court found, and we agree, that State
    Plaintiffs have standing to challenge provisions of ICWA and the Final Rule
    under the Tenth Amendment. The imposition of regulatory burdens on State
    Plaintiffs is sufficient to demonstrate an injury to their sovereign interest in
    creating and enforcing a legal code to govern child custody proceedings in state
    courts.   See 
    Texas, 809 F.3d at 153
    .          Additionally, the causation and
    redressability requirements are satisfied here, as a favorable ruling from this
    17
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    court would likely redress State Plaintiffs’ injury by lifting the mandatory
    burdens ICWA and the Final Rule impose on states. See 
    Lujan, 504 U.S. at 590
    .
    D. Standing to Bring Nondelegation Claim
    Finally, Plaintiffs contend that ICWA section 1915(c), which allows a
    tribe to establish a different order of section 1915(a)’s placement preferences,
    is an impermissible delegation of legislative power that binds State Plaintiffs.
    Defendants argue that State Plaintiffs cannot demonstrate an injury, given the
    lack of evidence that a tribe’s reordering of section 1915(a)’s placement
    preferences has affected any children in Texas, Indiana, or Louisiana or that
    such impact is “certainly impending.” State Plaintiffs respond that tribes can
    change ICWA’s placement preferences at any time and that at least one tribe,
    the Alabama-Coushatta Tribe of Texas, has already done so. We conclude that
    State Plaintiffs have demonstrated injury and causation with respect to this
    claim, as State Plaintiffs’ injury from the Alabama-Coushatta Tribe’s decision
    to depart from ICWA section 1915’s placement preferences is concrete and
    particularized and not speculative. See 
    Lujan, 504 U.S. at 560
    . Moreover, a
    favorable ruling from this court would redress State Plaintiffs’ injury by
    making a state’s compliance with a tribe’s alternative order of preferences
    under ICWA section 1915(c) optional rather than mandatory. See 
    id. Accordingly, having
    found that State Plaintiffs have standing on the
    aforementioned claims, we proceed to the merits of these claims. We note at
    the outset that ICWA is entitled to a “presumption of constitutionality,” so long
    as Congress enacted the statute “based on one or more of its powers
    enumerated in the Constitution.” See United States v. Morrison, 
    529 U.S. 598
    ,
    607 (2000).    “Due respect for the decisions of a coordinate branch of
    Government demands that we invalidate a congressional enactment only upon
    18
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    a plain showing that Congress has exceeded its constitutional bounds.” 
    Id. (citing, among
    others, United States v. Harris, 
    106 U.S. 629
    , 635 (1883)).
    II.    Equal Protection
    The Equal Protection Clause of the Fourteenth Amendment prohibits
    states from “deny[ing] to any person within its jurisdiction the equal protection
    of the laws.” U.S. CONST., amend. 14, § 1. This clause is implicitly incorporated
    into the Fifth Amendment’s guarantee of due process. See Bolling v. Sharpe,
    
    347 U.S. 497
    , 499 (1954). We apply the same analysis with respect to equal
    protection claims under the Fifth and Fourteenth Amendments. See Richard
    v. Hinson, 
    70 F.3d 415
    , 417 (5th Cir. 1995). In evaluating an equal protection
    claim, strict scrutiny applies to laws that rely on classifications of persons
    based on race. See 
    id. But where
    the classification is political, rational basis
    review applies. See Morton v. Mancari, 
    417 U.S. 535
    , 555 (1974). The district
    court granted summary judgment on behalf of Plaintiffs, concluding that
    section 1903(4)—setting forth ICWA’s definition of “Indian Child” for purposes
    of determining when ICWA applies in state child custody proceedings—was a
    race-based classification that could not withstand strict scrutiny. 8 On appeal,
    the parties disagree as to whether section 1903(4)’s definition of “Indian Child”
    is a political or race-based classification and which level of scrutiny applies.
    “We review the constitutionality of federal statutes de novo.” Nat’l Rifle Ass’n
    8  As described above, we conclude that Plaintiffs have standing to challenge ICWA
    section 1915(a)–(b) and Final Rule sections 23.129–32 on equal protection grounds. The
    district court’s analysis of whether the ICWA classification was political or race-based focused
    on ICWA section 1903(4), presumably because section 1903(4) provides a threshold definition
    of “Indian child” that must be met for any provision of ICWA to apply in child custody
    proceedings in state court. Because we are satisfied that our analysis would produce the
    same result with respect to section 1903(4) and the specific provisions Plaintiffs have
    standing to challenge, we similarly confine our discussion of whether ICWA presents a
    political or race-based classification to section 1903(4).
    19
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    of Am., Inc. v. Bureau of Alcohol, Tobacco, Firearms, & Explosives, 
    700 F.3d 185
    , 192 (5th Cir. 2012).
    A. Level of Scrutiny
    We begin by determining whether ICWA’s definition of “Indian child” is
    a race-based or political classification and, consequently, which level of
    scrutiny applies. The district court concluded that ICWA’s “Indian Child”
    definition was a race-based classification. We conclude that this was error.
    Congress has exercised plenary power “over the tribal relations of the Indians
    . . . from the beginning, and the power has always been deemed a political one,
    not subject to be controlled by the judicial department of the government.”
    Lone Wolf v. Hitchcock, 
    187 U.S. 553
    , 565 (1903).                  The Supreme Court’s
    decisions “leave no doubt that federal legislation with respect to Indian tribes
    . . . is not based upon impermissible racial classifications.” United States v.
    Antelope, 
    430 U.S. 641
    , 645 (1977). “Literally every piece of legislation dealing
    with Indian tribes and reservations . . . single[s] out for special treatment a
    constituency of tribal Indians living on or near reservations.” 
    Mancari, 417 U.S. at 552
    . “If these laws, derived from historical relationships and explicitly
    designed to help only Indians, were deemed invidious racial discrimination, an
    entire Title of the United States Code (25 U.S.C.) would be effectively erased
    and the solemn commitment of the Government toward the Indians would be
    jeopardized.” 
    Id. In Morton
    v. Mancari, the Supreme Court rejected a challenge to a law
    affording to qualified Indian applicants—those having one-fourth or more
    degree Indian blood with membership in a federally recognized tribe 9—a hiring
    9 The United States currently recognizes 573 Tribal entities. See 84 Fed. Reg. 1,200
    (Feb. 1, 2019). Federal recognition “is a formal political act confirming the tribe’s existence
    as a distinct political society, and institutionalizing the government-to-government
    relationship between the tribe and the federal government.” See California Valley Miwok
    Tribe v. United States, 
    515 F.3d 1262
    , 1263 (D.C. Cir. 2008) (quoting COHEN’S HANDBOOK OF
    20
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    preference over non-Indians within the BIA. 
    Id. at 555.
    The Court recognized
    that central to the resolution of the issue was “the unique legal status of Indian
    tribes under federal law and upon the plenary power of Congress . . . to legislate
    on behalf of federally recognized Indian tribes.” 
    Id. at 551.
    It reasoned that
    the BIA’s hiring preference was “granted to Indians not as a discrete racial
    group, but, rather, as members of quasi-sovereign tribal entities whose lives
    and activities are governed by the BIA in a unique fashion.” 
    Id. at 554.
    The
    preference was thus a non-racial “employment criterion reasonably designed
    to further the cause of Indian self-government and to make the BIA more
    responsive to the needs of its constituent groups.                   It [was] directed to
    participation by the governed in the governing agency.” 
    Id. at 553–54.
    The
    disadvantages to non-Indians resulting from the hiring preferences were an
    intentional and “desirable feature of the entire program for self-government.” 10
    
    Id. at 544.
    FEDERAL INDIAN LAW § 3.02[3], at 138 (2005 ed.) (internal quotation marks omitted)). It “[i]s
    a prerequisite to the protection, services, and benefits of the Federal Government available
    to those that qualify.” 25 C.F.R. § 83.2.
    10 Plaintiffs argue that, unlike the law in Mancari, ICWA is not a law promoting tribal
    self-governance. However, prior to enacting ICWA, Congress considered testimony from the
    Tribal Chief of the Mississippi Band of Choctaw Indians about the devastating impacts of
    removing Indian children from tribes and placing them for adoption and foster care in non-
    Indian homes:
    Culturally, the chances of Indian survival are significantly reduced if our
    children, the only real means for the transmission of the tribal heritage, are to
    be raised in non-Indian homes and denied exposure to the ways of their People.
    Furthermore, these practices seriously undercut the tribes’ ability to continue
    as self-governing communities. Probably in no area is it more important that
    tribal sovereignty be respected than in an area as socially and culturally
    determinative as family relationships.
    
    Holyfield, 490 U.S. at 34
    . This testimony undoubtedly informed Congress’s finding that
    children are the most vital resource “to the continued existence and integrity of Indian
    tribes.” 25 U.S.C. § 1901(3). Thus, interpreting ICWA as related to tribal self-government
    and the survival of tribes makes the most sense in light of Congress’s explicit intent in
    enacting the statute. See 
    id. 21 Case:
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    The district court construed Mancari narrowly and distinguished it for
    two primary reasons: First, the district court found that the law in Mancari
    provided special treatment “only to Indians living on or near reservations.”
    Second, the district court concluded that ICWA’s membership eligibility
    standard for an Indian child does not rely on actual tribal membership as did
    the statute in Mancari. The district court reasoned that, whereas the law in
    Mancari “applied ‘only to members of ‘federally recognized’ tribes which
    operated to exclude many individuals who are racially to be classified as
    Indians,’” ICWA’s definition of “Indian child” extended protection to children
    who were eligible for membership in a federally recognized tribe and had a
    biological parent who was a member of a tribe. The district court, citing the
    tribal membership laws of several tribes, including the Navajo Nation,
    concluded that “[t]his means one is an Indian child if the child is related to a
    tribal ancestor by blood.”
    We disagree with the district court’s reasoning and conclude that
    Mancari controls here. As to the district court’s first distinction, Mancari’s
    holding does not rise or fall with the geographical location of the Indians
    receiving “special treatment.” See 
    Mancari, 417 U.S. at 552
    . The Supreme
    Court has long recognized Congress’s broad power to regulate Indians and
    Indian tribes on and off the reservation. See e.g., United States v. McGowan,
    
    302 U.S. 535
    , 539 (1938) (“Congress possesses the broad power of legislating
    for the protection of the Indians wherever they may be within the territory of
    the United States.”); Perrin v. United States, 
    232 U.S. 478
    , 482 (1914)
    (acknowledging Congress’s power to regulate Indians “whether upon or off a
    reservation and whether within or without the limits of a state”).
    Second, the district court concluded that, unlike the statute in Mancari,
    ICWA’s definition of Indian child extends to children who are merely eligible
    for tribal membership because of their ancestry. However, ICWA’s definition
    22
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    of “Indian child” is not based solely on tribal ancestry or race. ICWA defines
    an “Indian child” as “any unmarried person who is under age eighteen and is
    either (a) a member of an Indian tribe or (b) is eligible for membership in an
    Indian tribe and is the biological child of a member of an Indian tribe.” 25
    U.S.C. § 1903(4). As Defendants explain, under some tribal membership laws,
    eligibility extends to children without Indian blood, such as the descendants of
    former slaves of tribes who became members after they were freed, or the
    descendants of adopted white persons. Accordingly, a child may fall under
    ICWA’s membership eligibility standard because his or her biological parent
    became a member of a tribe, despite not being racially Indian. Additionally,
    many racially Indian children, such as those belonging to non-federally
    recognized tribes, do not fall within ICWA’s definition of “Indian child.”
    Conditioning a child’s eligibility for membership, in part, on whether a
    biological parent is a member of the tribe is therefore not a proxy for race, as
    the district court concluded, but rather for not-yet-formalized tribal affiliation,
    particularly where the child is too young to formally apply for membership in
    a tribe. 11
    Our conclusion that ICWA’s definition of Indian child is a political
    classification is consistent with both the Supreme Court’s holding in Mancari
    and this court’s holding in Peyote Way Church of God, Inc. v. Thornburgh, 
    922 F.2d 1210
    , 1212 (5th Cir. 1991). In Mancari, the hiring preference extended to
    individuals who were one-fourth or more degree Indian blood and a member of
    11 The Navajo Nation’s membership code is instructive on these points, despite the
    district court’s reliance on it to the contrary. The Navajo Nation explains that, under its
    laws, “blood alone is never determinative of membership.” The Navajo Nation will only grant
    an application for membership “if the individual has some tangible connection to the Tribe,”
    such as the ability to speak the Navajo language or time spent living among the Navajo
    people. “Having a biological parent who is an enrolled member is per se evidence of such a
    connection.” Additionally, individuals will not be granted membership in the Navajo Nation,
    regardless of their race or ancestry, if they are members of another tribe.
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    a federally recognized tribe. 
    See 417 U.S. at 554
    . Similarly, in Peyote Way,
    this court considered whether equal protection was violated by federal and
    state laws prohibiting the possession of peyote by all persons except members
    of the Native American Church of North America (NAC), who used peyote for
    religious purposes. 
    See 922 F.2d at 1212
    . Applying Mancari’s reasoning, this
    court upheld the preference on the basis that membership in NAC “is limited
    to Native American members of federally recognized tribes who have at least
    25% Native American ancestry, and therefore represents a political
    classification.”    
    Id. at 1216.
         ICWA’s “Indian child” eligibility provision
    similarly turns, at least in part, on whether the child is eligible for membership
    in a federally recognized tribe. See California Valley Miwok Tribe v. United
    States, 
    515 F.3d 1262
    , 1263 (D.C. Cir. 2008) (federal recognition “is a formal
    political    act”   that     “institutionaliz[es]   the   government-to-government
    relationship between the tribe and the federal government.”); 25 U.S.C.
    § 1903(4).
    The district court concluded, and Plaintiffs now argue, that ICWA’s
    definition “mirrors the impermissible racial classification in Rice [v. Cayetano,
    
    528 U.S. 495
    (2000)], and is legally and factually distinguishable from the
    political classification in Mancari.” The Supreme Court in Rice concluded that
    a provision of the Hawaiian Constitution that permitted only “Hawaiian”
    people to vote in the statewide election for the trustees of the Office of
    Hawaiian Affairs (OHA) violated the Fifteenth 
    Amendment. 528 U.S. at 515
    .
    “Hawaiian” was defined by statute as “any descendant of the aboriginal peoples
    inhabiting the Hawaiian Islands which exercised sovereignty and subsisted in
    the Hawaiian Islands in 1778, and which peoples thereafter have continued to
    reside in Hawaii.” 
    Id. The Court
    noted the state legislature’s express purpose
    in using ancestry as a proxy for race and held that “[d]istinctions between
    citizens solely because of their ancestry are by their very nature odious to a
    24
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    free people whose institutions are founded upon the doctrine of equality.” 
    Id. at 514–17
    (citing Hirabayashi v. United States, 
    320 U.S. 81
    , 100 (1943)).
    Distinguishing Mancari, the Court noted that its precedent did not afford
    Hawaiians a protected status like that of Indian tribes; that the OHA elections
    were an affair of the state and not of a “separate quasi sovereign” like a tribe;
    and that extending “Mancari to this context would [] permit a State, by racial
    classification, to fence out whole classes of its citizens from decisionmaking in
    critical state affairs.” 
    Id. at 522.
          Rice is distinguishable from the present case for several reasons. Unlike
    Rice, which involved voter eligibility in a state-wide election for a state agency,
    there is no similar concern here that applying Mancari would permit “by racial
    classification, [the fencing] out [of] whole classes of [a state’s] citizens from
    decisionmaking in critical state affairs.” 
    See 528 U.S. at 518
    –22. Additionally,
    as discussed above, ICWA’s definition of “Indian child,” unlike the challenged
    law in Rice, does not single out children “solely because of their ancestry or
    ethnic characteristics.” See 
    id. at 515
    (emphasis added). Further, unlike the
    law in Rice, ICWA is a federal law enacted by Congress for the protection of
    Indian children and tribes. See 
    Rice, 528 U.S. at 518
    (noting that to sustain
    Hawaii’s restriction under Mancari, it would have to “accept some beginning
    premises not yet established in [its] case law,” such as that Congress “has
    determined that native Hawaiians have a status like that of Indians in
    organized tribes”); see also Kahawaiolaa v. Norton, 
    386 F.3d 1271
    , 1279 (9th
    Cir. 2004) (rejecting an equal protection challenge brought by Native
    Hawaiians, who were excluded from the U.S. Department of the Interior’s
    regulatory tribal acknowledgement process, and concluding that the
    recognition of Indian tribes was political). Additionally, whereas the OHA
    elections in Rice were squarely state affairs, state court adoption proceedings
    involving Indian children are simultaneously affairs of states, tribes, and
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    Congress. See 25 U.S.C. § 1901(3) (“[T]here is no resource that is more vital to
    the continued existence and integrity of Indian tribes than their children.”).
    Because we find Rice inapplicable, and Mancari controlling here, we conclude,
    contrary to the district court’s determination, that ICWA’s definition of “Indian
    child” is a political classification subject to rational basis review. See 
    Mancari, 417 U.S. at 555
    .
    B. Rational Basis Review
    Having so determined that rational basis review applies, we ask whether
    “the special treatment can be tied rationally to the fulfillment of Congress’s
    unique obligation toward the Indians.” 
    Mancari, 417 U.S. at 555
    . Given
    Congress’s explicit findings and stated objectives in enacting ICWA, we
    conclude that the special treatment ICWA affords Indian children is rationally
    tied to Congress’s fulfillment of its unique obligation toward Indian nations
    and its stated purpose of “protect[ing] the best interests of Indian children and
    [] promot[ing] the stability and security of Indian tribes.”               See 25 U.S.C.
    §§ 1901–02; see also 
    Mancari, 417 U.S. at 555
    .                 ICWA section 1903(4)’s
    definition of an “Indian child” is a political classification that does not violate
    equal protection.
    III. Tenth Amendment
    The district court concluded that ICWA sections 1901–23 12 and 1951–
    52 13 violated the anticommandeering doctrine by requiring state courts and
    executive agencies to apply federal standards to state-created claims. The
    12  ICWA sections 1901–03 set forth Congress’s findings, declaration of policy, and
    definitions. Sections 1911–23 govern child custody proceedings, including tribal court
    jurisdiction, notice requirements in involuntary and voluntary state proceedings,
    termination of parental rights, invalidation of state proceedings, placement preferences, and
    agreements between states and tribes.
    13 Section 1951 sets forth information-sharing requirements for state courts. Section
    1952 authorizes the Secretary of the Interior to promulgate necessary rules and regulations.
    26
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    district court also considered whether ICWA preempts conflicting state law
    under the Supremacy Clause and concluded that preemption did not apply
    because the law “directly regulated states.”                Defendants argue that the
    anticommandeering doctrine does not prevent Congress from requiring state
    courts to enforce substantive and procedural standards and precepts, and that
    ICWA sets minimum procedural standards that preempt conflicting state law.
    We examine the constitutionality of the challenged provisions of ICWA below
    and conclude that they preempt conflicting state law and do not violate the
    anticommandeering doctrine. .
    A. Anticommandeering Doctrine
    The Tenth Amendment provides that “[t]he powers not delegated to the
    United States by the Constitution, nor prohibited by it to the States, are
    reserved to the States respectively, or to the people.” U.S. CONST. amend. X.
    Congress’s legislative powers are limited to those enumerated under the
    Constitution. Murphy v. Nat’l Collegiate Athletic Ass’n, 
    138 S. Ct. 1461
    , 1476
    (2018). “[C]onspicuously absent from the list of powers given to Congress is
    the power to issue direct orders to the governments of the States.” 
    Id. The anticommandeering
    doctrine, an expression of this limitation on Congress,
    prohibits federal laws commanding the executive or legislative branch of a
    state government to act or refrain from acting. 14 
    Id. at 1478
    (holding that a
    federal law prohibiting state authorization of sports gambling violated the
    anticommandeering rule by “unequivocally dictat[ing] what a state legislature
    14 Though Congress is prohibited from commandeering states, it can “encourage a
    State to regulate in a particular way, or . . . hold out incentives to the States as a method of
    influencing a State’s policy choices.” New 
    York, 505 U.S. at 166
    . For example, Congress may
    also condition the receipt of federal funds under its spending power. See 
    id. at 167.
    Defendants also contend that ICWA is authorized under Congress’s Spending Clause powers
    because Congress conditioned federal funding in Title IV-B and E of the Social Security Act
    on states’ compliance with ICWA.           However, because we conclude that ICWA is
    constitutionally permissible on other bases, we need not reach this argument.
    27
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    may and may not do”); Printz v. United States, 
    521 U.S. 898
    , 935 (1997)
    (holding that a federal law requiring state chief law enforcement officers to
    conduct background checks on handgun purchasers “conscript[ed] the State’s
    officers directly” and was invalid); New York v. United States, 
    505 U.S. 144
    ,
    175–76 (1992) (holding that a federal law impermissibly commandeered states
    to implement federal legislation when it gave states “[a] choice between two
    unconstitutionally coercive” alternatives: to either dispose of radioactive waste
    within their boundaries according to Congress’s instructions or “take title” to
    and assume liabilities for the waste).
    1. State Courts
    Defendants argue that because the Supremacy Clause requires the
    enforcement of ICWA and the Final Rule by state courts, these provisions do
    not run afoul of the anticommandeering doctrine. We agree. The Supremacy
    Clause provides that “the Laws of the United States . . . shall be the supreme
    Law of the Land; and the Judges in every State shall be bound thereby, any
    Thing in the Constitution or Laws of any State to the Contrary
    notwithstanding.”     U.S. CONST. art. VI, cl. 2.             In setting forth the
    anticommandeering doctrine, the Supreme Court drew a distinction between a
    state’s courts and its political branches.       The Court acknowledged that
    “[f]ederal statutes enforceable in state court do, in a sense, direct state judges
    to enforce them, but this sort of federal “direction” of state judges is mandated
    by the text of the Supremacy Clause.” New 
    York, 505 U.S. at 178
    –79 (internal
    quotation marks omitted). Early laws passed by the first Congresses requiring
    state court action “establish, at most, that the Constitution was originally
    understood to permit imposition of an obligation on state judges to enforce
    federal prescriptions, insofar as those prescriptions related to matters
    appropriate for the judicial power.” 
    Printz, 521 U.S. at 907
    . State courts were
    viewed as distinctive because, “unlike [state] legislatures and executives, they
    28
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    applied the law of other sovereigns all the time,” including as mandated by the
    Supremacy Clause. 
    Id. Thus, to
    the extent provisions of ICWA and the Final
    Rule require state courts to enforce federal law, the anticommandeering
    doctrine does not apply. See 
    id. at 928–29
    (citing Testa v. Katt, 
    330 U.S. 386
    (1947), “for the proposition that state courts cannot refuse to apply federal lawa
    conclusion mandated by the terms of the Supremacy Clause”).
    2. State Agencies
    Plaintiffs next challenge several provisions of ICWA that they contend
    commandeer state executive agencies, including sections 1912(a) (imposing
    notice requirements on “the party seeking the foster care placement of, or
    termination of parental rights to, an Indian child”), 1912(d) (requiring that
    “any party seeking to effect a foster care placement of, or termination of
    parental rights to, an Indian child under State law shall satisfy the court that
    active efforts have been made to provide remedial services and rehabilitative
    programs designed to prevent the breakup of the Indian family and that these
    efforts have proved unsuccessful.”), 1915(c) (requiring “the agency or court
    effecting [a] placement” adhere to the order of placement preferences
    established by the tribe), and 1915(e) (requiring that “the State” in which the
    placement was made keep a record of each placement, evidencing the efforts to
    comply with the order of preference, to be made available upon request of the
    Secretary or the child’s tribe). See 25 U.S.C. §§ 1912, 1915. Plaintiffs argue
    that ICWA’s requirements on state agencies go further than the federal
    regulatory scheme invalidated in Printz and impermissibly impose costs that
    states must bear. Defendants contend that the challenged provisions of ICWA
    apply to private parties and state agencies alike and therefore do not violate
    the anticommandeering doctrine.
    In Printz, the Supreme Court affirmed its prior holding that “[t]he
    Federal Government may not compel the States to enact or administer a
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    federal regulatory program,” and “Congress cannot circumvent that
    prohibition by conscripting the State’s officers 
    directly.” 521 U.S. at 925
    , 935
    (quoting New 
    York, 505 U.S. at 188
    ). The Printz Court, rejecting as irrelevant
    the Government’s argument that the federal law imposed a minimal burden
    on state executive officers, explained that it was not “evaluating whether the
    incidental application to the States of a federal law of general applicability
    excessively interfered with the functioning of state governments,” but rather a
    law whose “whole object . . . [was] to direct the functioning of the state
    executive.” 
    Id. at 931–32.
    Expanding upon this distinction, the Court in
    Murphy discussed Reno v. Condon, 
    528 U.S. 141
    (2000), and South Carolina v.
    Baker, 
    485 U.S. 505
    (1988), and held that “[t]he anticommandeering doctrine
    does not apply when Congress evenhandedly regulates an activity in which
    both States and private actors 
    engage.” 138 S. Ct. at 1478
    .
    In Condon, the Court upheld a federal regulatory scheme that restricted
    the ability of states to disclose a driver’s personal information without 
    consent. 528 U.S. at 151
    . In determining that the anticommandeering doctrine did not
    apply, the Court distinguished the law from those invalidated in New York and
    Printz:
    [This law] does not require the States in their sovereign capacity
    to regulate their own citizens. The [law] regulates the States as
    the owners of [Department of Motor Vehicle] data bases. It does
    not require the South Carolina Legislature to enact any laws or
    regulations, and it does not require state officials to assist in the
    enforcement of federal statutes regulating private individuals.
    
    Id. In Baker,
    the Court rejected a Tenth Amendment challenge to a provision
    of a federal statute that eliminated the federal income tax exemption for
    interest earned on certain bonds issued by state and local governments unless
    the bonds were registered, treating the provision “as if it directly regulated
    States by prohibiting outright the issuance of [unregistered] bearer 
    bonds.” 485 U.S. at 507
    –08, 511. The Court reasoned that the provision at issue merely
    30
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    “regulat[ed] a state activity” and did not “seek to control or influence the
    manner in which States regulate private parties.” 
    Id. at 514.
    “That a State
    wishing to engage in certain activity must take administrative and sometimes
    legislative action to comply with federal standards regulating that activity is a
    commonplace that presents no constitutional defect.”                       
    Id. at 514–15.
    “[S]ubstantial effort[s]” to comply with federal regulations are “an inevitable
    consequence of regulating a state activity.” 
    Id. at 514.
           In light of these cases, we conclude that the provisions of ICWA that
    Plaintiffs challenge do not commandeer state agencies. Sections 1912(a) and
    (d) impose notice and “active efforts” requirements on the “party” seeking the
    foster care placement of, or termination of parental rights to, an Indian child.
    Because both state agencies and private parties who engage in state child
    custody proceedings may fall under these provisions, 1912(a) and (d)
    “evenhandedly regulate[] an activity in which both States and private actors
    engage.” 15 See 
    Murphy, 138 S. Ct. at 1478
    . Moreover, sections 1915(c) and (e)
    impose an obligation on “the agency or court effecting the placement” of an
    Indian child to respect a tribe’s order of placement preferences and require that
    “the State” maintain a record of each placement to be made available to the
    Secretary or child’s tribe. These provisions regulate state activity and do not
    15Similarly, section 1912(e) provides that no foster care placement may be ordered in
    involuntary proceedings in state court absent “a determination, supported by clear and
    convincing evidence, including testimony of qualified expert witnesses, that the continued
    custody of the child by the parent or Indian custodian is likely to result in serious emotional
    or physical damage to the child.” See 25 U.S.C. § 1912(e). Section 1912(f) requires that no
    termination of parental rights may be ordered in involuntary proceedings in state court
    absent evidence beyond a reasonable doubt of the same. See 
    id. at 1912(f).
    Neither section
    expressly refers to state agencies and, in conjunction with section 1912(d), both sections must
    be reasonably read to refer to “any party” seeking the foster care placement of, or the
    termination of parental rights to, an Indian child. Thus, like section 1912(d), sections
    1912(e)–(f) “evenhandedly regulate[] an activity in which both States and private actors
    engage” and do not run afoul of the anticommandeering doctrine. See 
    Murphy, 138 S. Ct. at 1478
    ; see also 
    Condon, 528 U.S. at 151
    .
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    require states to enact any laws or regulations, or to assist in the enforcement
    of federal statutes regulating private individuals. See 
    Condon, 528 U.S. at 151
    ;
    
    Baker, 485 U.S. at 514
    ; see also 
    Printz, 521 U.S. at 918
    (distinguishing statutes
    that merely require states to provide information to the federal government
    from those that command state executive agencies to actually administer
    federal programs).        To the contrary, they merely require states to “take
    administrative . . . action to comply with federal standards regulating” child
    custody proceedings involving Indian children, which is permissible under the
    Tenth Amendment. 16 See 
    Baker, 485 U.S. at 514
    –15.
    B. Preemption
    Defendants argue that, to the extent there is a conflict between ICWA
    and applicable state laws in child custody proceedings, ICWA preempts state
    law. The Supremacy Clause provides that federal law is the “supreme Law of
    16  In ruling otherwise, the district court discussed Murphy and emphasized that
    adhering to the anticommandeering rule is necessary to protect constitutional principles of
    state sovereignty, promote political accountability, and prevent Congress from shifting the
    costs of regulation to states. See 
    Murphy, 138 S. Ct. at 1477
    . These principles do not compel
    the result reached by the district court. See 
    id. First, the
    anticommandeering doctrine is not
    necessary here to protect constitutional principles of state sovereignty because ICWA
    regulates the actions of state executive agencies in their role as child advocates and
    custodians, and not in their capacity as sovereigns enforcing ICWA. See 
    id. at 1478;
    see also
    
    Condon, 528 U.S. at 151
    (concluding that the law in question there “does not require the
    States in their sovereign capacity to regulate their own citizens [but] regulates the States as
    the owners of data bases”). The need to promote political accountability is minimized here
    for similar reasons, as ICWA does not require states to regulate their own citizens. See
    
    Murphy, 138 S. Ct. at 1477
    (noting concern that, if states are required to impose a federal
    regulation on their voters, the voters will not know who to credit or blame and responsibility
    will be “blurred”). Finally, the need to prevent Congress from shifting the costs of regulation
    to states is also minimized here, where some of the requirements at issue, like those in
    sections 1912(d) and 1915(c), simply regulate a state’s actions during proceedings that it
    would already be expending resources on. ICWA’s recordkeeping and notice requirements
    could impose costs on states, but we cannot conclude that these costs compel application of
    the anticommandeering doctrine. See 
    Condon, 528 U.S. at 150
    (a federal law that “require[d]
    time and effort on the part of state employees” was constitutional); 
    Baker, 485 U.S. at 515
    (that states may have to raise funds necessary to comply with federal regulations “presents
    no constitutional defect”).
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    the Land . . . any Thing in the Constitution or Laws of any State to the Contrary
    notwithstanding.” U.S. CONST. art. VI, cl. 2. Conflict preemption occurs when
    “Congress enacts a law that imposes restrictions or confers rights on private
    actors; a state law confers rights or imposes restrictions that conflict with the
    federal law; and therefore the federal law takes precedence and the state law
    is preempted.” 
    Murphy, 138 S. Ct. at 1480
    . For a federal law to preempt
    conflicting state law, two requirements must be satisfied: The challenged
    provision of the federal law “must represent the exercise of a power conferred
    on Congress by the Constitution” and “must be best read as one that regulates
    private actors” by imposing restrictions or conferring rights. 
    Id. at 1479–80.
    The district court concluded that preemption does not apply here, as ICWA
    regulates states rather than private actors. We review de novo whether a
    federal law preempts a state statute or common law cause of action. See
    Friberg v. Kansas City S. Ry. Co., 
    267 F.3d 439
    , 442 (5th Cir. 2001).
    Congress enacted ICWA to “establish[] minimum Federal standards for
    the removal of Indian children from their families and the placement of such
    children in foster or adoptive homes which will reflect the unique values of
    Indian culture.” 25 U.S.C. § 1902. Defendants contend that these minimum
    federal standards preempt conflicting state laws.       Plaintiffs contend that
    preemption does not apply here because ICWA regulates states and not
    individuals, and nothing in the Constitution gives Congress authority to
    regulate the adoption of Indian children under state jurisdiction.
    ICWA specifies that Congress’s authority to regulate the adoption of
    Indian children arises under the Indian Commerce Clause as well as “other
    constitutional authority.” 25 U.S.C. § 1901(1). The Indian Commerce Clause
    provides that “[t]he Congress shall have Power To . . . regulate Commerce . . .
    with the Indian Tribes.” U.S. CONST. art. I, § 8, cl. 3. The Supreme Court has
    repeatedly held that the Indian Commerce Clause grants Congress plenary
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    power over Indian affairs. See 
    Lara, 541 U.S. at 200
    (noting that the Indian
    Commerce and Treaty Clauses are sources of Congress’s “plenary and
    exclusive” “powers to legislate in respect to Indian tribes”); Ramah Navajo Sch.
    Bd., Inc. v. Bureau of Revenue of New Mexico, 
    458 U.S. 832
    , 837 (1982)
    (discussing Congress’s “broad power . . . to regulate tribal affairs under the
    Indian Commerce Clause”); 
    Mancari, 417 U.S. at 551
    –52 (noting that “[t]he
    plenary power of Congress to deal with the special problems of Indians is
    drawn both explicitly and implicitly from,” inter alia, the Indian Commerce
    Clause). Plaintiffs do not provide authority to support a departure from that
    principle here.
    Moreover, ICWA clearly regulates private individuals. See 
    Murphy, 138 S. Ct. at 1479
    –80. In enacting the statute, Congress declared that it was the
    dual policy of the United States to protect the best interests of Indian children
    and promote the stability and security of Indian families and tribes. 25 U.S.C.
    § 1902. Each of the challenged provisions applies within the context of state
    court proceedings involving Indian children and is informed by and designed
    to promote Congress’s goals by conferring rights upon Indian children and
    families. 17 See H.R. REP. No. 95-1386, at 18 (1978) (“We conclude that rights
    arising under [ICWA] may be enforced, as of right, in the courts of the States
    when their jurisdiction, as prescribed by local law, is adequate to the occasion.”
    17 Arguably, two of the challenged provisions of ICWA could be construed to
    simultaneously “confer[] rights” on Indian children and families while “imposing restrictions”
    on state agencies. See 
    Murphy, 138 S. Ct. at 1479
    –80. Section 1915(c) requires “the agency
    or court effecting [a] placement” to adhere to a tribe’s established order of placement
    preferences, and section 1915(e) requires states to keep records and make them available to
    the Secretary and Indian tribes. 25 U.S.C. § 1915(c), (e). However, Murphy instructs that
    for a provision of a federal statute to preempt state law, the provision must be “best read as
    one that regulates private actors.” 
    See 138 S. Ct. at 1479
    (emphasis added). In light of
    Congress’s express purpose in enacting ICWA, the legislative history of the statute, and
    section 1915’s scope in setting forth minimum standards for the “Placement of Indian
    children,” we conclude that these provisions are “best read” as regulating private actors by
    conferring rights on Indian children and families. See 
    id. 34 Case:
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    (quoting Second Employers’ Liability Cases, 
    223 U.S. 1
    , 59 (1912))). Thus, to
    the extent ICWA’s minimum federal standards conflict with state law, “federal
    law takes precedence and the state law is preempted.” See 
    Murphy, 138 S. Ct. at 1480
    .
    IV. Nondelegation Doctrine
    Article I of the Constitution vests “[a]ll legislative Powers” in Congress.
    U.S. CONST. art. 1, § 1, cl. 1. “In a delegation challenge, the constitutional
    question is whether the statute has delegated legislative power to the agency.”
    Whitman v. Am. Trucking Ass’ns, 
    531 U.S. 457
    , 472 (2001). The limitations on
    Congress’s ability to delegate its legislative power are “less stringent in cases
    where the entity exercising the delegated authority itself possesses
    independent authority over the subject matter.” See United States v. Mazurie,
    
    419 U.S. 544
    , 556–57 (1975). ICWA section 1915(c) allows Indian tribes to
    establish through tribal resolution a different order of preferred placement
    than that set forth in sections 1915(a) and (b). 18 Section 23.130 of the Final
    Rule provides that a tribe’s established placement preferences apply over those
    specified in ICWA. 19         The district court determined that these provisions
    violated the nondelegation doctrine, reasoning that section 1915(c) grants
    Indian tribes the power to change legislative preferences with binding effect
    on the states, and Indian tribes, like private entities, are not part of the federal
    government of the United States and cannot exercise federal legislative or
    executive regulatory power over non-Indians on non-tribal lands.
    18  The section provides: “In the case of a placement under subsection (a) or (b) of this
    section, if the Indian child’s tribe shall establish a different order of preference by resolution,
    the agency or court effecting the placement shall follow such order so long as the placement
    is the least restrictive setting appropriate to the particular needs of the child, as provided in
    subsection (b) of this section.” 25 U.S.C. § 1915(c).
    19 “If the Indian child’s Tribe has established by resolution a different order of
    preference than that specified in ICWA, the Tribe’s placement preferences apply.” 25 C.F.R.
    § 23.130.
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    Defendants     argue   that   the     district   court’s     analysis    of   the
    constitutionality of these provisions ignores the inherent sovereign authority
    of tribes. They contend that section 1915 merely recognizes and incorporates
    a tribe’s exercise of its inherent sovereignty over Indian children and therefore
    does not—indeed cannot—delegate this existing authority to Indian tribes.
    The Supreme Court has long recognized that Congress may incorporate
    the laws of another sovereign into federal law without violating the
    nondelegation doctrine. See 
    Mazurie, 419 U.S. at 557
    (“[I]ndependent tribal
    authority is quite sufficient to protect Congress’ decision to vest in tribal
    councils this portion of its own authority ‘to regulate Commerce . . . with the
    Indian tribes.’”); United States v. Sharpnack, 
    355 U.S. 286
    , 293–94 (1958)
    (holding that a statute that prospectively incorporated state criminal laws “in
    force at the time” of the alleged crime was a “deliberate continuing adoption by
    Congress” of state law as binding federal law in federal enclaves within state
    boundaries); Gibbons v. Ogden, 22 U.S. (9 Wheat.) 1, 80 (1824) (“Although
    Congress cannot enable a State to legislate, Congress may adopt the provisions
    of a State on any subject.”). “Indian tribes are unique aggregations possessing
    attributes of sovereignty over both their members and their territory.”
    
    Mazurie, 419 U.S. at 557
    . Though some exercises of tribal power require
    “express congressional delegation,” the “tribes retain their inherent power to
    determine tribal membership [and] to regulate domestic relations among
    members . . . .” See Montana v. United States, 
    450 U.S. 544
    , 564 (1981); see
    also Merrion v. Jicarilla Apache Tribe, 
    455 U.S. 130
    , 170 (1982) (“tribes retain
    the power to create substantive law governing internal tribal affairs” like tribal
    citizenship and child custody).
    In Mazurie, a federal law allowed the tribal council of the Wind River
    Tribes, with the approval of the Secretary of the Interior, to adopt ordinances
    to control the introduction of alcoholic beverages by non-Indians on privately
    36
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    owned land within the boundaries of the reservation. 
    See 419 U.S. at 547
    , 557.
    The Supreme Court held that the law did not violate the nondelegation
    doctrine, focusing on the Tribes’ inherent power to regulate their internal and
    social relations by controlling the distribution and use of intoxicants within the
    reservation’s bounds. 
    Id. Mazurie is
    instructive here. ICWA section 1915(c)
    provides that a tribe may pass, by its own legislative authority, a resolution
    reordering the three placement preferences set forth by Congress in section
    1915(a).   Pursuant to this section, a tribe may assess whether the most
    appropriate placement for an Indian child is with members of the child’s
    extended family, the child’s tribe, or other Indian families, and thereby
    exercise its “inherent power to determine tribal membership [and] regulate
    domestic relations among members” and Indian children eligible for
    membership. See 
    Montana, 450 U.S. at 564
    .
    State Plaintiffs contend that Mazurie is distinguishable because it
    involves the exercise of tribal authority on tribal lands, whereas ICWA permits
    the extension of tribal authority over states and persons on non-tribal lands.
    We find this argument unpersuasive. It is well established that tribes have
    “sovereignty over both their members and their territory.” See 
    Mazurie, 419 U.S. at 557
    (emphasis added). For a tribe to exercise its authority to determine
    tribal membership and to regulate domestic relations among its members, it
    must necessarily be able to regulate all Indian children, irrespective of their
    location. 20 See 
    Montana, 450 U.S. at 564
    (tribes retain inherent power to
    regulate domestic relations and determine tribal membership); 
    Merrion, 455 U.S. at 170
    (tribes retain power to govern tribal citizenship and child custody).
    Section 1915(c), by recognizing the inherent powers of tribal sovereigns to
    20Indeed, as the BIA noted in promulgating the Final Rule, at least 78% of Native
    Americans lived outside of Indian country as of 2016. See 81 Fed. Reg. at 38,778, 38,783.
    37
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    determine by resolution the order of placement preferences applicable to an
    Indian child, is thus a “deliberate continuing adoption by Congress” of tribal
    law as binding federal law. See 
    Sharpnack, 355 U.S. at 293
    –94; see also 25
    U.S.C. § 1915(c); 81 Fed. Reg. at 38,784 (the BIA noting that “through
    numerous statutory provisions, ICWA helps ensure that State courts
    incorporate Indian social and cultural standards into decision-making that
    affects Indian children”). We therefore conclude that ICWA section 1915(c) is
    not an unconstitutional delegation of Congressional legislative power to tribes,
    but is an incorporation of inherent tribal authority by Congress. See 
    Mazurie, 419 U.S. at 544
    ; 
    Sharpnack, 355 U.S. at 293
    –94.
    V. The Final Rule
    The district court held that, to the extent sections 23.106–22, 23.124–32,
    and 23.140–41 of the Final Rule were binding on State Plaintiffs, they violated
    the APA for three reasons: The provisions (1) purported to implement an
    unconstitutional statute; (2) exceeded the scope of the Interior Department’s
    statutory regulatory authority to enforce ICWA with binding regulations; and
    (3) reflected an impermissible construction of ICWA section 1915. We examine
    each of these bases in turn.
    A. The Constitutionality of ICWA
    Because we concluded that the challenged provisions of ICWA are
    constitutional, for reasons discussed earlier in this opinion, the district court’s
    first conclusion that the Final Rule was invalid because it implemented an
    unconstitutional statue was erroneous. Thus, the statutory basis of the Final
    Rule is constitutionally valid.
    B. The Scope of the BIA’s Authority
    Congress authorized the Secretary of the Interior to promulgate rules
    and regulations that may be necessary to carry out the provisions of ICWA.
    See 25 U.S.C. § 1952.     Pursuant to this provision, the BIA, acting under
    38
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    authority delegated by the Interior Department, issued guidelines in 1979 for
    state courts in Indian child custody proceedings that were “not intended to
    have binding legislative effect.” 44 Fed. Reg. at 67,584. The BIA explained
    that, generally, “when the Department writes rules needed to carry out
    responsibilities Congress has explicitly imposed on the Department, those
    rules are binding.”   
    Id. However, when
    “the Department writes rules or
    guidelines advising some other agency how it should carry out responsibilities
    explicitly assigned to it by Congress, those rules or guidelines are not, by
    themselves, binding.” 
    Id. With respect
    to ICWA, the BIA concluded in 1979
    that it was “not necessary” to issue binding regulations advising states how to
    carry out the responsibilities Congress assigned to them; state courts were
    “fully capable” of implementing the responsibilities Congress imposed on them,
    and nothing in the language or legislative history of 25 U.S.C. § 1952 indicated
    that Congress intended the BIA to exercise supervisory control over states. 
    Id. However, in
    2016, the BIA changed course and issued the Final Rule, which
    sets binding standards for state courts in Indian child-custody proceedings.
    See 25 C.F.R. §§ 23.101, 23.106; 81 Fed. Reg. at 38,779, 38,785. The BIA
    explained that its earlier, nonbinding guidelines were “insufficient to fully
    implement Congress’s goal of nationwide protections for Indian children,
    parents, and Tribes.” 81 Fed. Reg. at 38,782. Without the Final Rule, the BIA
    stated, state-specific determinations about how to implement ICWA would
    continue “with potentially devastating consequences” for those Congress
    intended ICWA to protect. See 
    id. In reviewing
    “an agency’s construction of the statute which it
    administers,” we are “confronted with two questions.” Chevron, U.S.A., Inc. v.
    Nat. Res. Def. Council, Inc., 
    467 U.S. 837
    , 842–43 (1984). First, we must
    examine whether the statute is ambiguous. 
    Id. at 842.
    “If the intent of
    Congress is clear, that is the end of the matter; for the court, as well as the
    39
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    agency, must give effect to the unambiguously expressed intent of Congress.”
    
    Id. But “if
    the statute is silent or ambiguous with respect to the specific issue,
    the question for the court is whether the agency’s answer is based on a
    permissible construction of the statute.” 
    Id. at 842–43.
    We must uphold an
    agency’s reasonable interpretation of an ambiguous statute. 
    Id. at 844.
           Under   Chevron     step   one,   the   question   is   whether     Congress
    unambiguously intended to grant the Department authority to promulgate
    binding rules and regulations.       ICWA provides that “the Secretary shall
    promulgate such rules and regulations as may be necessary to carry out the
    provisions of this chapter.” 25 U.S.C. § 1952. The provision’s plain language
    confers broad authority on the Department to promulgate rules and
    regulations it deems necessary to carry out ICWA. This language can be
    construed to grant the authority to issue binding rules and regulations;
    however, because “Congress has not directly addressed the precise question at
    issue,” we conclude that section 1952 is ambiguous. See 
    Chevron, 467 U.S. at 843
    .
    Moving to the second Chevron step, we must determine whether the
    BIA’s current interpretation of its authority to issue binding regulations
    pursuant to section 1952 is reasonable. 
    See 467 U.S. at 843
    –44. Defendants
    argue that section 1952’s language is substantively identical to other statutes
    conferring broad delegations of rulemaking authority. Indeed, the Supreme
    Court has held that “[w]here the empowering provision of a statute states
    simply that the agency may make . . . such rules and regulations as may be
    necessary to carry out the provisions of this Act . . . the validity of a regulation
    promulgated thereunder will be sustained so long as it is reasonably related to
    the purposes of the enabling legislation.” Mourning v. Family Publications
    Serv., Inc., 
    411 U.S. 356
    , 369 (1973) (internal quotation marks omitted); see
    also City of Arlington, Tex. v. F.C.C., 
    569 U.S. 290
    , 306 (2013) (noting a lack of
    40
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    No. 18-11479
    “case[s] in which a general conferral of rulemaking or adjudicative authority
    has been held insufficient to support Chevron deference for an exercise of that
    authority within the agency’s substantive field”). Here, section 1952’s text is
    substantially similar to the language in Mourning, and the Final Rule’s
    binding standards for Indian child custody proceedings are reasonably related
    to ICWA’s purpose of establishing minimum federal standards in child custody
    proceedings involving Indian children. See 25 U.S.C. § 1902. Thus, the Final
    Rule is a reasonable exercise of the broad authority granted to the BIA by
    Congress in ICWA section 1952.
    Plaintiffs contend that the BIA reversed its position on the scope of its
    authority to issue binding regulations after thirty-seven years and without
    explanation and its interpretation was therefore not entitled to deference. We
    disagree. “The mere fact that an agency interpretation contradicts a prior
    agency position is not fatal. Sudden and unexplained change, or change that
    does not take account of legitimate reliance on prior interpretation, may be
    arbitrary, capricious [or] an abuse of discretion.    But if these pitfalls are
    avoided, change is not invalidating, since the whole point of Chevron is to leave
    the discretion provided by the ambiguities of a statute with the implementing
    agency.”   Smiley v. Citibank (S. Dakota), N.A., 
    517 U.S. 735
    , 742 (1996)
    (internal citations and quotation marks omitted). The agency must provide
    “reasoned explanation” for its new policy, though “it need not demonstrate to
    a court’s satisfaction that the reasons for the new policy are better than the
    reasons for the old one.” F.C.C. v. Fox Television Stations, Inc., 
    556 U.S. 502
    ,
    515 (2009). “[I]t suffices that the new policy is permissible under the statute,
    that there are good reasons for it, and that the agency believes it to be better,
    which the conscious change of course adequately indicates.” 
    Id. The BIA
    directly addressed its reasons for departing from its earlier
    interpretation that it had no authority to promulgate binding regulations,
    41
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    explaining that, under Supreme Court precedent, the text of section 1952
    conferred “a broad and general grant of rulemaking authority.” 81 Fed. Reg.
    at 38,785 (collecting Supreme Court cases). The BIA further discussed why it
    now considered binding regulations necessary to implement ICWA: In 1979,
    the BIA “had neither the benefit of the Holyfield Court’s carefully reasoned
    decision nor the opportunity to observe how a lack of uniformity in the
    interpretation of ICWA by State courts could undermine the statute’s
    underlying purposes.” 81 Fed. Reg. at 38,787 (citing 
    Holyfield, 490 U.S. at 30
    ).
    In Holyfield, the Supreme Court considered the meaning of the term
    “domicile,” which ICWA section 1911 left undefined and the BIA left open to
    state interpretation under its 1979 
    Guidelines. 490 U.S. at 43
    , 51. The Court
    held that “it is most improbable that Congress would have intended to leave
    the scope of the statute’s key jurisdictional provision subject to definition by
    state courts as a matter of state law,” given that “Congress was concerned with
    the rights of Indian families vis-à-vis state authorities” and considered “States
    and their courts as partly responsible for the problem it intended to correct”
    through ICWA. 
    Id. at 45.
    Because Congress intended for ICWA to address a
    nationwide problem, the Court determined that the lack of nationwide
    uniformity resulting from varied state-law definitions of this term frustrated
    Congress’s intent.    
    Id. The Holyfield
    Court’s reasoning applies here.
    Congress’s concern with safeguarding the rights of Indian families and
    communities was not limited to section 1911 and extended to all provisions of
    ICWA, including those at issue here. Thus, as the BIA explained, all provisions
    of ICWA that it left open to state interpretation in 1979, including many that
    Plaintiffs now challenge, were subject to the lack of uniformity the Supreme
    Court identified in Holyfield and determined was contrary to Congress’s intent.
    81 Fed. Reg. at 38,782. Thus, in light of Holyfield, the BIA has provided a
    “reasoned explanation” for departing from its earlier interpretation of its
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    authority under section 1952 and for the need of binding regulations with
    respect to ICWA. See Fox Television 
    Stations, 556 U.S. at 515
    .
    In addition to assessing whether an agency’s interpretation of a statute
    is reasonable under Chevron, the APA requires that we “hold unlawful and set
    aside agency action . . . found to be . . . arbitrary, capricious, an abuse of
    discretion, or otherwise not in accordance with law.” 5 U.S.C. § 706(2)(A).
    Contrary to Plaintiffs’ contentions, the BIA explained that the Final Rule
    resulted from years of study and public outreach and participation. See 81 Fed.
    Reg. 38,778, 38,784–85. In promulgating the rule, the BIA relied on its own
    expertise in Indian affairs, its experience in administering ICWA and other
    Indian child-welfare programs, state interpretations and best practices, 21
    public hearings, and tribal consultations. See 
    id. Thus, the
    BIA’s current
    interpretation is not “arbitrary, capricious, [or] an abuse of discretion” because
    it was not sudden and unexplained. See 
    Smiley, 517 U.S. at 742
    ; 5 U.S.C.
    § 706(a)(2). The district court’s contrary conclusion was error.
    C. The BIA’s Construction of ICWA Section 1915
    ICWA section 1915 sets forth three preferences for the placement of
    Indian children unless good cause can be shown to depart from them. 25 U.S.C.
    § 1915(a)–(b). The 1979 Guidelines initially advised that the term “good cause”
    in ICWA section 1915 “was designed to provide state courts with flexibility in
    determining the disposition of a placement proceeding involving an Indian
    child.” 44 Fed. Reg. 67,584. However, section 23.132(b) of the Final Rule
    specifies that “[t]he party seeking departure from [section 1915’s] placement
    preferences should bear the burden of proving by clear and convincing evidence
    that there is ‘good cause’ to depart from the placement preferences.” 25 C.F.R.
    21 Since ICWA’s enactment in 1978, several states have incorporated the statute’s
    requirements into their own laws or have enacted detailed procedures for their state agencies
    to collaborate with tribes in child custody proceedings.
    43
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    § 23.132(b).   The district court determined that Congress unambiguously
    intended the ordinary preponderance-of-the-evidence standard to apply, and
    the BIA’s interpretation that a higher standard applied was therefore not
    entitled to Chevron deference.
    Defendants contend that the Final Rule’s clear-and-convincing standard
    is merely suggestive and not binding. They further aver that the Final Rule’s
    clarification of the meaning of “good cause” and imposition of a clear-and-
    convincing-evidence standard are entitled to Chevron deference. Plaintiffs
    respond that state courts have interpreted the clear-and-convincing standard
    as more than just suggestive in practice, and the Final Rule’s fixed definition
    of “good cause” is contrary to ICWA’s intent to provide state courts with
    flexibility.
    Though provisions of the Final Rule are generally binding on states, the
    BIA indicated that it did not intend for section 23.132(b) to establish a binding
    standard. See 25 C.F.R. § 23.132 (“The party seeking departure from the
    placement preferences should bear the burden of proving by clear and
    convincing evidence that there is ‘good cause’ to depart from the placement
    preferences.” (emphasis added)). The BIA explained that “[w]hile the final rule
    advises that the application of the clear and convincing standard ‘should’ be
    followed, it does not categorically require that outcome . . . [and] the
    Department declines to establish a uniform standard of proof on this issue.”
    See 81 Fed. Reg. at 38,843.
    The BIA’s interpretation of section 1915 is also entitled to Chevron
    deference. For purposes of Chevron step one, the statute is silent with respect
    to which evidentiary standard applies. See 25 U.S.C. § 1915; 
    Chevron, 467 U.S. at 842
    . The district court relied on the canon of expressio unius est exclusio
    alterius (“the expression of one is the exclusion of others”) in finding that
    Congress unambiguously intended that a preponderance-of-the-evidence
    44
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    standard was necessary to show good cause under ICWA section 1915. The
    court reasoned that because Congress specified a heightened evidentiary
    standard in other provisions of ICWA, but did not do so with respect to section
    1915, Congress did not intend for the heightened clear-and-convincing-
    evidence standard to apply. This was error. “When interpreting statutes that
    govern agency action, . . . a congressional mandate in one section and silence
    in another often suggests not a prohibition but simply a decision not to
    mandate any solution in the second context, i.e., to leave the question to agency
    discretion.” Catawba Cty., N.C. v. E.P.A., 
    571 F.3d 20
    , 36 (D.C. Cir. 2009).
    “[T]hat Congress spoke in one place but remained silent in another . . . rarely
    if ever suffices for the direct answer that Chevron step one requires.” 
    Id. (cleaned up);
    see also Texas Rural Legal Aid, Inc. v. Legal Servs. Corp., 
    940 F.2d 685
    , 694 (D.C. Cir. 1991) (“Under Chevron, we normally withhold
    deference from an agency’s interpretation of a statute only when Congress has
    directly spoken to the precise question at issue, and the expressio canon is
    simply too thin a reed to support the conclusion that Congress has clearly
    resolved this issue.”) (internal citations and quotation marks omitted).
    Under Chevron step two, the BIA’s current interpretation of the
    applicable evidentiary standard is reasonable. See 
    Chevron, 467 U.S. at 844
    .
    The BIA’s suggestion that the clear-and-convincing standard should apply was
    derived from the best practices of state courts. 81 Fed. Reg. at, 38,843. The
    Final Rule explains that, since ICWA’s passage, “courts that have grappled
    with the issue have almost universally concluded that application of the clear
    and convincing evidence standard is required as it is most consistent with
    Congress’s intent in ICWA to maintain Indian families and Tribes intact.” 
    Id. Because the
    BIA’s current interpretation of section 1915, as set forth in Final
    Rule section 23.132(b), was based on its analysis of state cases and geared
    toward furthering Congress’s intent, it is reasonable and entitled to Chevron
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    deference.   Moreover, the BIA’s current interpretation is nonbinding and
    therefore consistent with the 1979 Guidelines in allowing state courts
    flexibility to determine “good cause.” Section 23.132(b) of the Final Rule is
    thus valid under the APA. See 5 U.S.C. § 706(a)(2).
    ***
    For these reasons, we conclude that Plaintiffs had standing to bring all
    claims and that ICWA and the Final Rule are constitutional because they are
    based on a political classification that is rationally related to the fulfillment of
    Congress’s unique obligation toward Indians; ICWA preempts conflicting state
    laws and does not violate the Tenth Amendment anticommandeering doctrine;
    and ICWA and the Final Rule do not violate the nondelegation doctrine. We
    also conclude that the Final Rule implementing the ICWA is valid because the
    ICWA is constitutional, the BIA did not exceed its authority when it issued the
    Final Rule, and the agency’s interpretation of ICWA section 1915 is reasonable.
    Accordingly, we AFFIRM the district court’s judgment that Plaintiffs had
    Article III standing. But we REVERSE the district court’s grant of summary
    judgment for Plaintiffs and RENDER judgment in favor of Defendants on all
    claims.
    46