United States v. Mark Steven Elk Shoulder ( 2013 )


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  •                      FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    UNITED STATES OF AMERICA,                       No. 10-30072
    Plaintiff-Appellee,
    D.C. No.
    v.                       1:09-cr-00023-JDS-1
    MARK STEVEN ELK SHOULDER,                      ORDER AND
    Defendant-Appellant.                   OPINION
    Appeal from the United States District Court
    for the District of Montana
    Jack D. Shanstrom, Senior District Judge, Presiding
    Submitted June 1, 2012*
    Portland, Oregon
    Opinion filed: October 4, 2012
    Opinion withdrawn and new Opinion filed:
    September 23, 2013
    Before: A. Wallace Tashima, Carlos T. Bea,
    and Sandra S. Ikuta, Circuit Judges.
    Order;
    Opinion by Judge Ikuta
    *
    The panel unanimously concludes this case is suitable for decision
    without oral argument. See Fed. R. App. P. 34(a)(2).
    2              UNITED STATES V. ELK SHOULDER
    SUMMARY**
    Criminal Law
    The panel withdrew an opinion filed October 5, 2012, and
    filed a superseding opinion affirming a judgment in a case in
    which the defendant was convicted of failing to comply with
    the registration requirements set forth in the Sex Offender
    Registration and Notification Act.
    The panel rejected, as foreclosed by United States v.
    Elkins, 
    683 F.3d 1039
     (9th Cir. 2012), the defendant’s
    argument that application of the SORNA registration
    requirements to him on the basis of his earlier conviction
    violates the Ex Post Facto Clause.
    The panel rejected as foreclosed by Elkins the defendant’s
    due-process argument that because Montana had not yet
    conformed its sex offense registration to SORNA’s
    requirements, it was impossible for him to register “as
    required by” SORNA. The panel also held that because the
    defendant received notice of his obligation to register under
    Montana law, he received all the notice the Due Process
    Clause requires.
    Under the reasoning of United States v. Kebodeaux,
    
    133 S. Ct. 2496
     (2013), the panel rejected the defendant’s
    argument that Congress lacked the authority under the
    Property Clause and Necessary and Proper Clause to apply
    SORNA to him. In so holding, the panel reasoned: (1) the
    **
    This summary constitutes no part of the opinion of the court. It has
    been prepared by court staff for the convenience of the reader.
    UNITED STATES V. ELK SHOULDER                  3
    defendant was subject to the Wetterling Act’s registration
    requirements upon his release from prison in May 2008
    through August 1, 2008, when SORNA became applicable to
    him, and his release from federal custody was therefore not
    unconditional; and (2) because 
    42 U.S.C. § 14072
    (i)(2)
    applied to pre-Act offenders such as the defendant
    prospectively, not retrospectively, the Wetterling Act’s
    imposition of criminal penalties on individuals who violate
    the applicable registration requirements does not violate the
    Ex Post Facto Clause.
    The order stated that the parties may file an additional
    petition for rehearing or rehearing en banc.
    COUNSEL
    Lisa J. Bazant, Billings, Montana, for Appellant.
    Michael W. Cotter, United States Attorney, J. Bishop Grewell
    and Marcia Hurd, Assistant United States Attorneys, Billings,
    Montana, for Appellee.
    ORDER
    The opinion filed on October 5, 2012, and appearing at
    
    696 F.3d 922
     is withdrawn. The superseding opinion will be
    filed concurrently with this order. The parties may file an
    additional petition for rehearing or rehearing en banc.
    4            UNITED STATES V. ELK SHOULDER
    OPINION
    IKUTA, Circuit Judge:
    This appeal challenges the constitutionality of certain key
    provisions of the Sex Offender Registration and Notification
    Act (SORNA). Pub. L. 109-248, §§ 101–55, 
    120 Stat. 587
    ,
    590–611 (codified in scattered sections of U.S.C. (2006)).
    Defendant Mark Steven Elk Shoulder was prosecuted under
    
    18 U.S.C. § 2250
    (a) for failing to comply with the sex
    offender registration requirements set forth in 
    42 U.S.C. § 16913
    . He now argues that his conviction was invalid,
    because SORNA violates the Ex Post Facto Clause and the
    Due Process Clause, and because Congress lacked the
    constitutional authority to enact SORNA. We reject these
    constitutional challenges and affirm the judgment of the
    district court.
    I
    The history of Congress’s activities in ensuring the
    registration of sex offenders provides the backdrop to the
    facts of this case.
    A
    In 1994, Congress enacted the Jacob Wetterling Crimes
    Against Children and Sexually Violent Offender Registration
    Act (“Wetterling Act”), Pub. L. No. 103-322,
    §§ 170101–170303, 
    108 Stat. 1796
    , 2038–45 (1994), the first
    federal act addressing sex offender registration. The
    Wetterling Act served at least two functions. First, it “used
    the federal spending power to encourage States to adopt sex
    offender registration laws.” United States v. Kebodeaux,
    UNITED STATES V. ELK SHOULDER                    5
    
    133 S. Ct. 2496
    , 2501 (2013) (citing 
    42 U.S.C. § 14071
    (i)
    (2000 ed.)). Specifically, 
    42 U.S.C. § 14071
    (a) required the
    Attorney General to “establish guidelines for State programs”
    requiring people “convicted of a criminal offense against a
    [minor] victim,” or “a sexually violent offense,” to register a
    current address for a specified time period. Although the Act
    did not require states accepting funds to impose this
    registration requirement retroactively on individuals
    previously convicted of sex offenses, the Act did “not
    preclude states from imposing any new registration
    requirements on offenders convicted prior to the
    establishment of the registration system.” Final Guidelines
    for Megan’s Law and the Jacob Wetterling Crimes Against
    Children and Sexually Violent Offender Registration Act,
    
    62 Fed. Reg. 39,009
    , 39,013 (July 21, 1997).
    Second, the Wetterling Act “imposed federal penalties
    upon federal sex offenders who failed to register in the States
    in which they lived, worked, and studied.” Kebodeaux,
    
    133 S. Ct. at
    2501 (citing 42 U.S.C §§ 14072(i)(3)–(4)).
    Relevant here, § 14702(i)(2) provided that a person who is
    “required to register under a sexual offender registration
    program in the person’s State of residence and knowingly
    fails to register in any other State in which the person is
    employed, carries on a vocation, or is a student,” is subject to
    specified penalties. Similarly, § 14702(i)(3) imposed a
    penalty on a person who is “described in section 4042(c)(4)
    of title 18 [specifying various sex offenses], and knowingly
    fails to register in any State in which the person resides, is
    employed, carries on a vocation, or is a student following
    release from prison or sentencing to probation.”
    “[B]y 2000, all fifty states and the District of Columbia
    had both sex offender registration systems and community
    6            UNITED STATES V. ELK SHOULDER
    notification programs.” United States v. Crowder, 
    656 F.3d 870
    , 872 (9th Cir. 2011) (alteration in original) (internal
    quotation marks omitted). Montana, the state where Elk
    Shoulder resided, first enacted a Sexual Offender Registration
    Act in 1989, even before the Wetterling Act was passed.
    State v. Villanueva, 
    118 P.3d 179
    , 181 (Mont. 2005)
    (explaining that Montana’s sex offender registry applied to
    “sexual offenders who are sentenced by a state or federal
    court in any state on or after July 1, 1989, or who as a result
    of a sentence are under the supervision of a county, state, or
    federal agency in any state on or after July 1, 1989” (internal
    quotation marks omitted)). Though Montana’s act has been
    amended several times, Elk Shoulder does not dispute its
    continued applicability to him.
    Although most states complied with the Wetterling Act’s
    encouragement to enact sex-offender registration, pre-
    SORNA registration laws consisted of a “patchwork of
    federal and 50 individual state registration systems.”
    Reynolds v. United States, 
    132 S. Ct. 975
    , 978 (2012) (citing
    
    73 Fed. Reg. 38,045
     (2008)). To address this problem, in
    2006, Congress enacted SORNA “to succeed and enhance the
    registration requirements of the Wetterling Act.” United
    States v. Begay, 
    622 F.3d 1187
    , 1190 (9th Cir. 2010).
    SORNA is designed to improve the uniformity and
    effectiveness of sex-offender registration systems by, among
    other things, “creating federal criminal sanctions applicable
    to those who violate the Act’s registration requirements.”
    Reynolds, 
    132 S. Ct. at 978
    . SORNA’s registration
    requirement, codified at 
    42 U.S.C. § 16913
    , requires all state
    UNITED STATES V. ELK SHOULDER                         7
    and federal sex offenders,1 to “register, and keep the
    registration current, in each jurisdiction where the offender”
    resides, works, or goes to school.2 A person who fails to
    register as required by § 16913 may be criminally prosecuted
    under 
    18 U.S.C. § 2250
    (a). This provision requires the
    government to prove that the defendant: (1) is required to
    register under SORNA, (2) is a “sex offender” due to a
    conviction under federal law (or the law of certain other listed
    jurisdictions) or a person who “travels in interstate or foreign
    commerce, or enters or leaves, or resides in, Indian country”
    and, (3) knowingly failed to register or update a registration
    as required by SORNA.3
    1
    
    42 U.S.C. § 16911
    (1) defines “sex offender” to “mean[ ] an individual
    who was convicted of a sex offense.” The term “sex offense” is defined
    in § 16911(5)(A)(i) to include: “a criminal offense that has an element
    involving a sexual act or sexual contact with another.”
    2
    
    42 U.S.C. § 16913
    (a) provides:
    A sex offender shall register, and keep the registration
    current, in each jurisdiction where the offender resides,
    where the offender is an employee, and where the
    offender is a student. For initial registration purposes
    only, a sex offender shall also register in the
    jurisdiction in which convicted if such jurisdiction is
    different from the jurisdiction of residence.
    3
    
    18 U.S.C. § 2250
    (a) states:
    (a) In General.— Whoever—
    (1) is required to register under the Sex Offender
    Registration and Notification Act;
    (2) (A) is a sex offender as defined for the
    purposes of the Sex Offender Registration and
    Notification Act by reason of a conviction
    8            UNITED STATES V. ELK SHOULDER
    Although SORNA imposed various requirements on sex
    offenders, it did not provide that its registration requirements
    would apply retroactively to sex offenders convicted before
    July 27, 2006, SORNA’s effective date. United States v.
    Valverde, 
    628 F.3d 1159
    , 1162 (9th Cir. 2010). Instead, it
    gave the Attorney General the authority to enact regulations
    specifying the applicability of SORNA’s registration
    requirements to pre-Act offenders. 
    Id.
     (citing 
    42 U.S.C. § 16913
    (d)). In Valverde, we held that the Attorney General
    did not complete the steps necessary to make SORNA
    retroactive until August 1, 2008. 
    Id. at 1169
    . Therefore, the
    requirements of SORNA became applicable to pre-Act
    offenders on that date. 
    Id.
     The Wetterling Act, however,
    remained in effect until repealed by SORNA, effective on the
    later of July 27, 2009, or one year after the software required
    by SORNA became available. Pub. L. 109-248, §§ 129(b),
    124, 120 Stat. at 600–01, 598.
    under Federal law (including the Uniform
    Code of Military Justice), the law of the
    District of Columbia, Indian tribal law, or the
    law of any territory or possession of the
    United States; or
    (B) travels in interstate or foreign commerce,
    or enters or leaves, or resides in, Indian
    country; and
    (3) knowingly fails to register or update a
    registration as required by the Sex Offender
    Registration and Notification Act;
    shall be fined under this title or imprisoned not more
    than 10 years, or both.
    UNITED STATES V. ELK SHOULDER                          9
    B
    In 1992, before Congress passed the Wetterling Act but
    after Montana had enacted its registration requirements, Elk
    Shoulder was convicted in a federal district court in Montana
    of sexual abuse of a six-year-old child in violation of
    section 2241(c) of Title 18 of the United States Code.4 In
    1992, the court sentenced Elk Shoulder to 172 months in
    prison, followed by five years supervised release. Upon his
    release in December 2003, officials informed Elk Shoulder
    that he was required to register as a sex offender under
    Montana law. He registered in Yellowstone County,
    Montana, where he signed and initialed the state’s “Sexual
    and Violent Offender Registration Form.” By doing so, Elk
    Shoulder acknowledged that state law required him to
    maintain a current and updated registration, and that his duty
    to register would continue for the rest of his life, even after
    the expiration of probation or parole.
    Weeks later, in February 2004, Elk Shoulder was
    sentenced to thirty months in prison, to be followed by thirty
    months of supervised release, for violating the terms of his
    supervised release. Upon Elk Shoulder’s second release from
    prison, in April 2006, he again registered as a sex offender in
    Yellowstone County. Congress enacted SORNA on July 26,
    2006, but because Elk Shoulder was a pre-Act offender,
    4
    At the time of Elk Shoulder’s conviction, § 2241(c) provided:
    Whoever, in the special maritime and territorial
    jurisdiction of the United States or in a Federal prison,
    knowingly engages in a sexual act with another person
    who has not attained the age of 12 years, or attempts to
    do so, shall be fined under this title, imprisoned for any
    term of years or life, or both.
    10           UNITED STATES V. ELK SHOULDER
    SORNA did not yet apply retroactively to him. See Valverde,
    
    628 F.3d at 1169
    . In August 2006, Elk Shoulder again
    violated the terms of his supervised release and was
    sentenced to another twenty-four months in prison.
    Elk Shoulder was released a third time in May 2008. Two
    months later, on August 1, 2008, SORNA became applicable
    to pre-Act offenders, including Elk Shoulder. See 
    id.
     After
    his third release, Elk Shoulder moved around Montana, living
    at various times in the Northern Cheyenne Indian
    Reservation, Bozeman, Lame Deer, Billings, and Wolf Point.
    He did not register as a sex offender in any of these locales.
    On February 23, 2009, Elk Shoulder was indicted under
    
    18 U.S.C. § 2250
    (a) for violating the SORNA registration
    requirements in 
    42 U.S.C. § 16913
    . Before trial, Elk
    Shoulder brought two motions to dismiss the indictment. In
    the first, he asserted that SORNA’s registration provision
    exceeded Congress’s authority under the Commerce Clause.
    In the second, he claimed that the retroactive application of
    these provisions violated the Ex Post Facto Clause. The
    district court denied both motions. After a bench trial, the
    court found Elk Shoulder guilty beyond a reasonable doubt.
    He was sentenced to a term of thirty months’ imprisonment,
    to be followed by five years’ supervised release.
    On appeal, Elk Shoulder argues that the district court
    erred in rejecting his constitutional challenges to SORNA.
    We initially affirmed the district court in an opinion issued on
    October 5, 2012. But on January 11, 2013, before our
    opinion became final, the Supreme Court granted certiorari in
    United States v. Kebodeaux, 
    687 F.3d 232
     (5th Cir. 2012) (en
    banc), cert. granted, 
    133 S. Ct. 928
     (2013), a Fifth Circuit
    case holding that the Necessary and Proper Clause did not
    UNITED STATES V. ELK SHOULDER                   11
    permit Congress to require sex offenders who had been
    “unconditionally released” from federal custody to register
    under SORNA. 
    Id.
     at 244–45. Because Elk Shoulder’s
    challenge implicated the Necessary and Proper Clause, we
    stayed the mandate in this case pending the Supreme Court’s
    decision. On June 24, 2013, the Supreme Court reversed the
    Fifth Circuit. Kebodeaux, 
    133 S. Ct. at 2500
    . We
    subsequently ordered supplemental briefing, asking the
    parties to address the impact of Kebodeaux on Elk Shoulder’s
    case. Having reviewed the parties’ supplemental briefs, we
    now address all of Elk Shoulder’s claims.
    II
    We first consider Elk Shoulder’s argument that SORNA’s
    statutory scheme for requiring sex offenders to register and
    criminalizing certain failures to register violates the Ex Post
    Facto Clause.
    The Constitution provides: “No . . . ex post facto Law
    shall be passed.” U.S. Const. art. I, § 9, cl. 3. As the
    Supreme Court has succinctly explained, “[l]egislatures may
    not retroactively alter the definition of crimes or increase the
    punishment for criminal acts.” Collins v. Youngblood,
    
    497 U.S. 37
    , 43 (1990); see also United States v. Elkins,
    
    683 F.3d 1039
    , 1044 (9th Cir. 2012) (holding that the Ex Post
    Facto Clause “bars the enactment of any law that ‘imposes a
    punishment for an act which was not punishable at the time
    it was committed; or imposes additional punishment to that
    then prescribed.’” (quoting Russell v. Gregoire, 
    124 F.3d 1079
    , 1083 (9th Cir. 1997)).
    Elk Shoulder asserts that SORNA’s registration
    requirement constitutes an additional punishment for his
    12           UNITED STATES V. ELK SHOULDER
    federal sex offense, which he committed in 1991. Because
    SORNA was not enacted until 2006, he argues that the Ex
    Post Facto Clause prohibited Congress from applying the
    registration requirement to him.
    Elk Shoulder’s argument is foreclosed by our decision in
    United States v. Elkins. In Elkins, a defendant who had been
    convicted of a sex offense under Washington law in 1994
    failed to register when he moved from Washington to
    California in 2010, and was indicted under § 2250. Elkins,
    683 F.3d at 1041–42. Elkins filed a motion to dismiss the
    indictment arguing, among other things, that the requirement
    to register violated the Ex Post Facto Clause in his case
    because it was punitive in nature and based on a prior
    conviction that occurred before SORNA’s enactment. Id. at
    1042–44.      We concluded that SORNA’s registration
    requirement was not punitive in nature, and therefore did not
    violate Elkins’s constitutional rights. Id. at 1045. Because
    Elk Shoulder also argues that SORNA’s registration
    requirement cannot be applied to him because it is punitive in
    nature, Elkins’s reasoning is equally applicable to Elk
    Shoulder.
    Despite this precedent, Elk Shoulder argues that the
    Court’s analysis in Smith “no longer hold[s] true in today’s
    society,” and that the purpose and effect of SORNA’s
    registration requirement are punitive in nature. Elk Shoulder
    focuses on the Supreme Court’s holding that the Alaska
    registration statute does not resemble shaming punishments
    of the colonial period (the first factor of Smith’s five-factor
    test), and that there was “no evidence that the [registration
    requirement] has led to substantial occupational or housing
    disadvantages for former sex offenders that would not have
    otherwise occurred through the use of routine background
    UNITED STATES V. ELK SHOULDER                  13
    checks by employers and landlords.” Smith v. Doe, 
    538 U.S. 84
    , 100 (2003) (the second factor). According to Elk
    Shoulder, today SORNA’s registration requirement imposes
    significant hardships on offenders, who are “held to public
    ridicule by community members,” and face difficulty finding
    and maintaining both employment and housing. He notes that
    local newspapers frequently maintain interactive maps of the
    registered residences of sex offenders, and cites “reports of
    incidents of citizens standing on street corners bearing signs
    with the names and addresses of offenders blaz[o]ned across
    the front.”
    This argument fails. We recently reaffirmed the
    nonpunitive nature of SORNA in Elkins, which we are bound
    to follow. See Miller v. Gammie, 
    335 F.3d 889
    , 899 (9th Cir.
    2003) (en banc). Further, Smith v. Doe contemplated that
    information from the Alaska sex registration statute would be
    available on the internet, but determined that such internet
    notification was nonpunitive because its principal effect was
    to “inform the public for its own safety, not to humiliate.”
    
    538 U.S. at 99
    . The Court further noted that there was no
    evidence that the Alaska act had “led to substantial
    occupational or housing disadvantages for former sex
    offenders that would not have otherwise occurred through the
    use of routine background checks by employers and
    landlords.” 
    Id. at 100
    . Because “only the clearest proof will
    suffice to override legislative intent and transform what has
    been denominated a civil remedy into a criminal penalty,” 
    id. at 92
     (internal quotation marks omitted), Elk Shoulder’s
    conclusory statements and handful of anecdotal examples
    cannot carry the heavy burden of showing substantial changes
    in society that would require us to revisit the Supreme Court’s
    conclusion.
    14           UNITED STATES V. ELK SHOULDER
    We thus reject Elk Shoulder’s argument that application
    of the SORNA registration requirements to him on the basis
    of his earlier conviction violates the Ex Post Facto Clause.
    III
    We next turn to Elk Shoulder’s arguments that SORNA’s
    registration requirements violate his rights under the Fifth
    Amendment, which bars the federal government from
    depriving persons of “life, liberty, or property, without due
    process of law.” U.S. Const. amend. V.
    Elk Shoulder first asserts that he was deprived of his right
    to due process because it was impossible for him to comply
    with SORNA. As noted above, in order to convict Elk
    Shoulder under § 2250(a), the government had to prove that
    Elk Shoulder knowingly failed “to register or update a
    registration as required by” SORNA. 
    18 U.S.C. § 2250
    (a)(3)
    (emphasis added). Elk Shoulder points out that SORNA
    required states to adopt the new procedures for sex offender
    registries established by the Act, or lose part of their federal
    funding. 
    42 U.S.C. §§ 16924
    (a), 16925. Elk Shoulder argues
    that, because Montana had not yet conformed its sex offense
    registry to SORNA’s requirements, it was impossible for him
    to register “as required by” SORNA.
    We previously have rejected this argument, both in
    United States v. George, 
    625 F.3d 1124
    , 1128–29 (9th Cir.
    2010), vacated on other grounds, 
    672 F.3d 1126
     (9th Cir.
    2012), and in Elkins, 683 F.3d at 1046. As we stated in
    Elkins, “the federal government’s prosecution of an alleged
    violation of SORNA is not dependent on the individual
    state’s implementation of the administrative portion of
    SORNA.” Elkins, 683 F.3d at 1046; accord id. at 1046 n.9
    UNITED STATES V. ELK SHOULDER                   15
    (the “‘duty to register in a state registry is independent of a
    state’s degree of implementation of SORNA.’” (quoting
    Felts, 674 F.3d at 603)); see also United States v. Guzman,
    
    591 F.3d 83
    , 93 (2d Cir. 2010); United States v. Gould,
    
    568 F.3d 459
    , 464–65 (4th Cir. 2009). Because Elk Shoulder
    could have registered with the State of Montana’s registry,
    and because this would have allowed him to register “as
    required by” SORNA, it was not impossible for Elk Shoulder
    to meet the requirements of § 2250(a). Thus, this case
    presents no impossibility-based due process problems.
    Second, Elk Shoulder asserts that he did not receive
    notice that his failure to register as a sex offender would
    violate SORNA, and therefore he did not receive notice
    sufficient to comply with the Due Process Clause. This
    argument is meritless. In order to convict a defendant under
    § 2250(a), “the government [must] prove that a convicted sex
    offender knew of a registration requirement and knowingly
    failed ‘to register or update a registration.’” Crowder,
    
    656 F.3d at 876
     (quoting 
    18 U.S.C. § 2250
    (a)(3)). A
    SORNA defendant’s knowledge of his failure to “register or
    update a registration” as required by state law is sufficient to
    satisfy the “notice” requirement of the Due Process Clause.
    Elkins, 683 F.3d at 1049–50; accord United States v. Brown,
    
    586 F.3d 1342
    , 1351 (11th Cir. 2009) (“[W]e join our sister
    circuits in concluding that notice of a duty to register under
    state law is sufficient to satisfy the Due Process Clause.”
    (internal quotation marks omitted)). The defendant need not
    know that the same failure also violates SORNA. Thus,
    because Elk Shoulder received notice of his obligation to
    register under Montana state law, he received all the notice
    the Due Process Clause requires.
    16           UNITED STATES V. ELK SHOULDER
    IV
    Finally, Elk Shoulder argues that his release from federal
    custody in May 2008 was “unconditional,” as defined in
    Kebodeaux, 
    133 S. Ct. at 2501
     (defining “unconditional” to
    mean that, after the defendant’s release, “he was not in ‘any
    . . . special relationship with the federal government.’”
    (quoting Kebodeaux, 687 F.3d at 234)), and that Congress
    therefore lacked the authority under the Property Clause and
    Necessary and Proper Clause to apply SORNA to him.
    A
    Kebodeaux controls our analysis here. In Kebodeaux, a
    former member of the United States Air Force, Anthony
    Kebodeaux, had been convicted in 1999 by a court-martial for
    a federal sex offense. Id. at 2500. After serving a three-
    month prison sentence and receiving a bad conduct discharge,
    Kebodeaux moved to Texas, where he eventually registered
    as a sex offender in 2004. After SORNA became applicable
    to him, he moved within Texas without updating his sex
    offender registration, and was prosecuted under SORNA for
    his failure to register. Id. Kebodeaux appealed his conviction
    on the ground that once he had been unconditionally released
    from federal custody, Congress did not have the power to
    criminalize his failure to register. The Fifth Circuit, sitting en
    banc, agreed. It first held that Kebodeaux had been
    unconditionally let free from any “special relationship with
    the federal government” by the time Congress had enacted
    SORNA. Kebodeaux, 687 F.3d at 234. This conclusion was
    based in part on the Fifth Circuit’s determination that the
    Wetterling Act’s registration requirements did not apply to
    the defendant upon his release from prison. Id. at 235 n.4.
    Because Kebodeaux was not subject to any federal conditions
    UNITED STATES V. ELK SHOULDER                 17
    when SORNA went into effect, the Fifth Circuit concluded,
    Congress “lacked the power under Article I’s Necessary and
    Proper Clause to regulate through registration [the
    defendant’s] intrastate movements.” Kebodeaux, 
    133 S. Ct. at 2500
    .
    The Supreme Court reversed. In explaining the reasons
    for its disagreement with the Fifth Circuit, the Supreme Court
    stated that “we need not go much further than the Circuit’s
    critical assumption that Kebodeaux’s release was
    ‘unconditional.’” 
    Id. at 2501
     (quoting Kebodeaux, 687 F.3d
    at 234). Contrary to the Fifth Circuit, the Supreme Court
    determined that Kebodeaux was not “an individual who had,
    prior to SORNA’s enactment, been ‘unconditionally
    released,’” but rather was “an individual already subject to
    federal registration requirements [i.e., the Wetterling Act]
    that were themselves a valid exercise of federal power.” Id.
    at 2504. In reaching this conclusion, the Supreme Court
    focused on § 14072(i) of the Wetterling Act, which imposed
    federal penalties on convicted sex offenders who failed to
    comply with the federal registration provisions. Id. at 2501.
    According to the Supreme Court, Kebodeaux had been
    continuously subject to two different subsections of
    § 14072(i) from the time of his release from prison. As the
    Court explained, § 14072(i)(3) imposed federal criminal
    penalties on individuals described in 
    18 U.S.C. § 4042
    (c)(4)
    who knowingly failed to register in a state where they
    resided, and Kebodeaux’s crime of conviction was one
    described in § 4042(c)(4). Id. In addition, the Court noted
    that § 14072(i)(4) imposed federal penalties on individuals
    who were sentenced by a court martial for specified crimes,
    and who failed to register as a sex offenders, and held that
    this subsection was also applicable to Kebodeaux. Id. at
    2501–02. Therefore, the Court concluded that federal
    18           UNITED STATES V. ELK SHOULDER
    conditions had been continuously imposed on Kebodeaux
    under the Wetterling Act from the time of his release from
    prison.
    The Court indicated that this conclusion was enough to
    resolve the case. Id. at 2502 (“Both the Court of Appeals and
    Kebodeaux come close to conceding that if, as of the time of
    Kebodeaux’s offense, he was subject to a federal registration
    requirement, then the Necessary and Proper Clause
    authorized Congress to modify the requirement as in SORNA
    and to apply the modified requirement to Kebodeaux. . . .
    And we believe they would be right to make this concession.”
    (internal quotation marks omitted)). Nevertheless, the Court
    went on to consider Congress’s authority to enact the
    Wetterling Act and SORNA. As explained in greater detail
    below, see infra at pp. 22–23, the Court first held that the
    Wetterling Act, as applied to military sex offenders such as
    Kebodeaux, was a valid exercise of Congress’s authority
    under the Military Regulation Clause and the Necessary and
    Proper Clause. Id. at 2502–03. Extending this conclusion,
    the Court held that SORNA, which made few changes to the
    Wetterling Act, also fell within the scope of Congress’s
    authority under these clauses as applied to Kebodeaux. Id. at
    2505. Accordingly, the Court concluded that Congress could
    constitutionally apply SORNA’s requirements to an
    individual like Kebodeaux who had been continuously
    subject to valid federal registration requirements after his
    release from prison. Id. at 2504.
    The same reasoning applies here. As the Court did in
    Kebodeaux, we begin by addressing Elk Shoulder’s argument
    that he had not been in “any . . . special relationship with the
    federal government” after his release from prison in May
    2008. Kebodeaux, 
    133 S. Ct. at 2501
    . And as in Kebodeaux,
    UNITED STATES V. ELK SHOULDER                        19
    this argument does not withstand scrutiny, because Elk
    Shoulder was continuously subject to one or more of the
    § 14072(i) requirements in the Wetterling Act.
    Section 14072(i)(2) imposed penalties on “[a] person who is
    required to register under a sexual offender registration
    program in the person’s State of residence and knowingly
    fails to register in any other State in which the person is
    employed, carries on a vocation, or is a student.” This section
    applied to Elk Shoulder because, upon his release from
    prison, he was required to register as a sex offender under
    Montana law. Therefore, Elk Shoulder was subject to the
    federal requirement to register when he undertook specified
    activities in other states. In addition, § 14072(i)(3), which
    was relied upon in Kebodeaux, imposed criminal penalties
    upon a person described in 
    18 U.S.C. § 4042
    (c)(4) who
    “knowingly fails to register in any State in which the person
    resides, is employed, carries on a vocation, or is a student
    following release from prison or sentencing to probation.”
    Kebodeaux, 
    133 S. Ct. at 2501
    . Because § 4042(c)(4)
    described Elk Shoulder’s crime of conviction (as it described
    Kebodeaux’s), § 14072(i)(3) potentially applied to Elk
    Shoulder.5 Accordingly, under the reasoning in Kebodeaux,
    Elk Shoulder was subject to the Wetterling Act upon his
    release from prison in May 2008 through August 1, 2008,
    when SORNA became applicable to him. His release from
    federal custody in May 2008 was therefore not
    “unconditional.”
    5
    Although 
    18 U.S.C. § 4042
    (c)(4) was repealed July 27, 2006, Pub. L.
    No. 109-248, § 141(h), Kebodeaux gave no weight to this fact.
    20           UNITED STATES V. ELK SHOULDER
    B
    In response, Elk Shoulder argues that he was not subject
    to the Wetterling Act upon his release because he was
    convicted three years before the Act was enacted. Because
    the Act does not expressly make its provisions applicable to
    pre-enactment offenders, Elk Shoulder contends that the
    presumption against the retroactivity of federal statutes
    applies. See Vartelas v. Holder, 
    132 S. Ct. 1479
    , 1486–87
    (2012). Moreover, Elk Shoulder claims that the presumption
    against retroactivity has special force here, because
    retroactively applying the Wetterling Act to Elk Shoulder
    would violate the Ex Post Facto Clause. Cf. Clark v.
    Martinez, 
    543 U.S. 371
    , 381–82 (2005) (explaining that the
    canon of constitutional avoidance “allows courts to avoid the
    decision of constitutional questions”). The Supreme Court
    did not address these issues in Kebodeaux, because the
    defendant in that case was subject to the Wetterling Act “at
    the time of his offense and conviction.” Kebodeaux,
    
    133 S. Ct. at 2501
    .
    We reject Elk Shoulder’s argument. The Wetterling Act
    provision applicable to Elk Shoulder, § 14072(i)(2), imposed
    federal registration requirements on offenders who had an
    ongoing obligation to register under state law, but spent
    significant amounts of time in another state. Under its plain
    language, § 14072(i)(2) attached a new federal obligation to
    Elk Shoulder based on his status as a current state registrant,
    not because of his pre-enactment conviction. Elk Shoulder
    was required to comply with § 14072(i)(2) because he was
    subject to an ongoing Montana registration requirement when
    the Wetterling Act became applicable to him, not because he
    had previously been convicted of a sex offense. By its terms,
    therefore, § 14072(i)(2) does not operate retroactively.
    UNITED STATES V. ELK SHOULDER                   21
    Moreover, the Supreme Court has explained that statutes
    imposing requirements on previously convicted individuals
    in order to address “dangers that arise postenactment” are not
    retroactive. Vartelas, 
    132 S. Ct. at
    1489 n.7. Thus,
    “[l]ongstanding prohibitions on the possession of firearms by
    felons,” as well as “laws prohibiting persons convicted of a
    sex crime against a victim under 16 years of age from
    working in jobs involving frequent contact with minors, and
    laws prohibiting a person who has been adjudicated as a
    mental defective or who has been committed to a mental
    institution from possessing guns,” do “not operate
    retroactively,” but rather “target a present danger.” 
    Id.
     at
    1489 & n.7 (internal quotation marks omitted). Here, the
    applicable Wetterling Act provisions addressed a post-
    enactment danger. As later explained in SORNA, they
    addressed the danger that the public would not be aware of
    potentially dangerous sex offenders living, working, or
    attending school in its area. See 
    42 U.S.C. § 16901
     (stating
    that SORNA’s purpose is to “protect the public from sex
    offenders and offenders against children”). Because only a
    patchwork of state registration requirements existed prior to
    the Wetterling Act, Congress reasonably addressed the
    concern that persons already subject to registration
    requirements in their home state would fail to register in other
    states where they worked or went to school.                  See
    § 14072(i)(2).
    Because § 14072(i)(2) addressed “dangers that arise
    postenactment,” Vartelas, 
    132 S. Ct. at
    1489 n.7, rather than
    operating retroactively, the Wetterling Act’s imposition of
    criminal penalties on individuals who violate the applicable
    registration requirements also does not violate the Ex Post
    Facto Clause. See Elkins, 683 F.3d at 1045 (“‘SORNA
    provides for a conviction for failing to register; it does not
    22             UNITED STATES V. ELK SHOULDER
    increase the punishment for past conviction.’” (quoting Felts,
    674 F.3d at 606)). We therefore conclude that § 14072(i)(2)
    applied to pre-Act offenders such as Elk Shoulder
    prospectively, not retrospectively.6
    C
    Given our determination that Elk Shoulder was
    continuously subject to federal conditions under the
    Wetterling Act from the time of his release from prison
    through the time of SORNA’s enactment, Kebodeaux
    compels the conclusion that SORNA can constitutionally be
    applied to Elk Shoulder.
    Once the Court was satisfied that Kebodeaux had never
    been “unconditionally released,” Kebodeaux set forth a chain
    of logical steps to show why Congress has the authority to
    apply SORNA registration requirements to him. First,
    Kebodeaux determined that “under the authority granted to it
    6
    To support his argument that the application of these statutes to him
    would be retroactive, Elk Shoulder also points to the language in
    § 14071(a)(1)(A) that requires the Attorney General to establish guidelines
    for State programs that prospectively require registration of “a person who
    is convicted of a criminal offense.” By requiring registration of a person
    who “is” convicted, Elk Shoulder argues, Congress did not authorize the
    retroactive application of the Wetterling Act’s registration requirement to
    a person who “was” convicted in the past.
    This argument fails. The language in § 14071(a)(1)(A) cited by Elk
    Shoulder applies to the Attorney General’s promulgation of guidelines for
    state registration programs, which as noted above did not preclude states
    from applying registration requirements retroactively. The statute does
    not impose any obligations on individuals such as Elk Shoulder, and has
    no bearing on whether §§ 14071(i)(3) and (4) are applicable to persons
    convicted of a sex crime before the Wetterling Act’s enactment.
    UNITED STATES V. ELK SHOULDER                   23
    by the Military Regulation and Necessary and Proper
    Clauses, Congress could promulgate the Uniform Code of
    Military Justice” and “could specify that the sex offense of
    which Kebodeaux was convicted was a military crime under
    that Code.” 
    133 S. Ct. at 2503
    . Because Congress “could
    punish that crime through imprisonment and by placing
    conditions upon Kebodeaux’s release,” the Wetterling Act, as
    applied to Kebodeaux, was within Congress’s power. 
    Id.
    (holding that Congress “could make the civil registration
    requirement at issue here a consequence of Kebodeaux’s
    offense and conviction”). Kebodeaux then held that, because
    “SORNA makes few changes” to the registration
    requirements when “applied to an individual already subject
    to the Wetterling Act,” Congress could have reasonably
    determined that SORNA’s registration requirements were a
    “‘necessary and proper’ means for furthering its pre-existing
    registration ends.” 
    Id. at 2505
    . Accordingly, the Court
    concluded that “the SORNA changes as applied to
    Kebodeaux fall within the scope Congress’ authority.” 
    Id.
    The same chain of logic applies in this case. Here, the
    Property Clause, U.S. Const. art. IV, § 3, cl. 2,7 gives
    Congress the authority to “make all needful Rules and
    Regulations respecting the Territory or other Property
    7
    In full, the Property Clause provides:
    The Congress shall have Power to dispose of and make
    all needful Rules and Regulations respecting the
    Territory or other Property belonging to the United
    States; and nothing in this Constitution shall be so
    construed as to Prejudice any Claims of the United
    States, or of any particular State.
    U.S. Const. art. IV, § 3, cl. 2.
    24             UNITED STATES V. ELK SHOULDER
    belonging to the United States.” Elk Shoulder does not
    dispute that, when read with the Necessary and Proper
    Clause, this enumerated power authorized Congress to enact
    Elk Shoulder’s crime of conviction, which prohibited a
    person from knowingly engaging in a sex act with a person
    under twelve years of age “in the special maritime and
    territorial jurisdiction of the United States or in a Federal
    prison.” 
    18 U.S.C. § 2241
    (c); see also United States v.
    Comstock, 
    130 S. Ct. 1949
    , 1964 (2010) (“Congress has the
    implied power to criminalize any conduct that might interfere
    with the exercise of an enumerated power . . . .”). In light of
    Kebodeaux, it follows that, because Congress could punish
    Elk Shoulder’s crime by imprisoning him, it could also apply
    the Wetterling Act’s conditions to him after his release. See
    Kebodeaux, 
    133 S. Ct. at 2505
    . And as in Kebodeaux,
    because Elk Shoulder was subject to the Wetterling Act,
    Congress could have reasonably found that the SORNA’s
    conditions made “few changes” and were a “‘necessary and
    proper’ means for furthering its pre-existing registration
    ends.” 
    Id.
     Accordingly, under the reasoning in Kebodeaux,
    we conclude that the SORNA requirements as applied to Elk
    Shoulder “are within the scope of Congress’ authority.” Id.8
    8
    For the first time in his petition for rehearing, Elk Shoulder contends
    that the federal government had jurisdiction to prosecute him under
    
    18 U.S.C. § 2241
    (c) solely by virtue of the Major Crimes Act, 
    18 U.S.C. § 1153
    , which “permits the federal government to prosecute Native
    Americans in federal courts for a limited number of enumerated offenses
    committed in Indian country that might otherwise go unpunished under
    tribal criminal justice systems.” United States v. Other Medicine,
    
    596 F.3d 677
    , 680 (9th Cir. 2010). Based on this assertion, Elk Shoulder
    argues that Congress lacked the authority to impose SORNA registration
    requirements on him because the Major Crimes Act “must be construed
    narrowly, in favor of limited incursion on Native American sovereignty.”
    
    Id.
    UNITED STATES V. ELK SHOULDER                        25
    V
    Because SORNA violates neither the Ex Post Facto
    Clause nor Elk Shoulder’s constitutional right to due process,
    and because Congress acted within its enumerated powers in
    enacting SORNA and applying it to individuals like Elk
    Shoulder, we affirm the judgment of the district court.
    AFFIRMED.
    We disagree. Although the “canons of construction favoring Native
    Americans,” 
    id.,
     may require a narrow construction of § 1153, it is
    undisputed that Elk Shoulder was validly made subject to and then
    convicted under § 2241(c). Under Kebodeaux, if Congress had the
    authority to promulgate and apply § 2241(c) to Elk Shoulder, then
    Congress had the implied power to impose SORNA requirements on Elk
    Shoulder to further congressional ends. 
    133 S. Ct. at 2505
    . Because Elk
    Shoulder raises no argument as to why the Major Crimes Act affects
    Kebodeaux’s analysis in this regard, we reject his argument.