*602 OPINION
David Wayne Felts was convicted for failing to register under the Sex Offender Registration Notification Act (“SORNA”) in Tennessee. Felts’s appeal presents a case of first impression for this Circuit — can an offender be convicted for failure to register under SORNA if his home state, Tennessee, has not yet completely implemented the act? Felts challenges the district court’s denial of his motion to dismiss the indictment. In concert with six other circuits, we hold that SORNA is effective in a state, even prior to its complete implementation. Felts’s alternate constitutional arguments — that SORNA violates the Ex Post Facto Clause, the nondelegation doctrine, and the Tenth Amendment — are without merit.
I
Felts served fifteen years of imprisonment for a 1994 conviction for rape of a child (a twelve-year-old female) on November 3, 1993 and aggravated sexual battery (a different twelve-year-old victim) on October 26, 1993. After his release, Felts, along with his girlfriend and her six-year-old daughter, moved to Florida, and then to San Juan, Puerto Rico, without notifying the registration authorities in his home state of Tennessee. Felts was indicted on one count of failing to register under SORNA, in violation of 18 U.S.C. § 2250(a). The district court denied Felts’s motion to dismiss, after which Felts pleaded guilty. Felts was sentenced to 24 months of imprisonment. Felts now appeals the denial of the motion to dismiss.
This court reviews
de novo
a district court’s purely legal determinations, including determinations regarding statutory construction and the constitutionality of a federal statute.
United States v. Hart,
II
A
Congress passed the Sex Offender Registration and Notification Act (SORNA), 42 U.S.C. § 16901
et seq.,
on July 27, 2006 for the purpose of “creating] a national system for the registration of sex offenders.”
United States v. Utesch,
SORNA imposes an obligation on a sex offender to “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.” 42 U.S.C. § 16913(a). Pursuant to SORNA, a sex offender is also required, “not later than 3 business days after each change of name, residence, employment, or student status, to appear in person” to update his or her registration information. 42 U.S.C. § 16913(c). 18 U.S.C. § 2250(a) mandates that whoever “is required to register under the Sex Offender Registration and Notification Act,” is a “sex offender,” and if he “knowingly fails to register or update a registration as required by the Sex Offender Registration and Notification Act,” he “shall be fined under this title or imprisoned not more than 10 years, or both.”
The original deadline for states to implement SORNA was July 27, 2009. See 42 U.S.C. § 16924(a)(1)-(2) (“Each jurisdic *603 tion shall implement this title before the later of 3 years after the date of the enactment of this Act [enacted July 27, 2006]”). Currently, 15 states have “substantially implemented SORNA’s requirements”: Alabama, Delaware, Florida, Kansas, Louisiana, Maryland, Michigan, Mississippi, Missouri, Nevada, Ohio, South Carolina, South Dakota, Wyoming, and most saliently, Tennessee. U.S. Dep’t of Justice, SMART Office “Newsroom,” http://www.ojp.usdoj.gov/smart/newsroom. htm (last visited Mar. 8, 2012). As of the date of Felts’s federal conviction for failure to register, however, Tennessee had not yet substantially implemented SORNA. Appellant Br. at 13 (“Though Tennessee’s own sex registration form includes notification of the federal duty to register and alerts registrants to possible federal criminal penalties of ‘up to 10 years imprisonment,’ Tennessee has not yet taken the additional steps required to achieve substantial implementation.”).
B
This appeal presents a case of first impression for this circuit 1 — if Tennessee failed to implement SORNA, does Felts’s failure to register in Tennessee’s registry constitute a failure to register as required by SORNA?
The answer to that question— based on case law from all other circuits to look at this issue — is yes. The duty to register in a state registry is independent of a state’s degree of implementation of SORNA.
United States v. Guzman,
Felts argues that “SORNA ... appears to require that persons register under its provisions only when States actually implement SORNA’s regulatory scheme.” Appellant Br. at 15. From the context, it appears that by “actually implement,” Felts means that a state “fully implements” SORNA. This cannot be correct, as at the time of SORNA’s enactment in 2006, no state’s registry was in compliance with SORNA. For Felts’s argument to be true, Congress — which provided the states with three years to comply without penalty — would have effectively rendered SORNA nugatory in any non-compliant state until 2009.
Or, if a state chooses not to comply with SORNA — its sovereign prerogative, so long as it is willing to forego federal funding — a resident-sex offender would never have to register under federal law.
See Shenandoah,
We reject Felts’s argument and concur with the reasoning of our sister courts. The duty of an offender to register is independent of whether or not the state has implemented SORNA. Even assuming that Tennessee’s registry in 2010 was not up to SORNA’s standards, Felts still could have registered with it. This much is clear. But what happens if inconsistencies between the non-complying state and federal regimes limit the ability of an offender to register?
C
Felts’s broader argument — essentially a facial, rather than an as-applied challenge — is that
no one,
not just Felts, could be prosecuted for a violation of SORNA if there is any inconsistency between the federal and non-complying state regimes, thereby meaning that an offender would lack “fair notice” of what is prohibited.
See United States v. Williams,
1
A case may arise where a non-compliant state-law contains all of the requirements that SORNA requires, and more. If an offender has fair notice of,
*605
and fulfills all of the requirements under the state law, then by definition, the offender will fulfill all of the requirements under federal law. Such a regime would not present any overlap issues.
See Shenandoah,
2
The second, potentially more problematic, circumstance, occurs where the requirements under the non-eompliant state registry are less onerous than the requirements under SORNA, and the offender may thus lack fair notice of what federal law requires. This is what Felts alleges. For example, 42 U.S.C. § 16915(a) lists different durations of the registration requirement based on the severity of the offense. For a Tier III sex offender, registration is required for life. Id. § 16915(a)(3). If a non-implementing state were to require registration for a period less than that mandated by SORNA, and a state official only informed an offender of the state requirement, would an offender who stopped registering after the state-prescribed period violate SORNA?
Felts raises an alternate scenario: “A defendant in a State that has not implemented SORNA and does not require that its sex offenders provide all of the listed categories ... would naturally assume that ‘registration’ meant providing more information than the State required or even permitted.” Appellant Br. at 17. Felts contends that such a state would be unable to process the additional information, leaving an offender subject to SORNA without fair notice and unable to fulfill the registration requirements, through no fault of his own.
The precedents from other circuits largely fail to address circumstances where an inconsistency between federal and non-complying state regimes would render it impractical, or even impossible, for an offender to register under federal law. The other courts that have addressed this issue have seemed to assume that the federal and state requirements in non-compliant jurisdictions are identical, or perhaps simply similar enough. This may not always be the case.
However, we need not reach this argument with respect to due process, as Felts’s own conduct renders this defense unavailable. Under any conceivable definition of the word “register,” Felts did not register. There is no question that Felts failed at a minimum to update his address information when he moved, with a minor, to Florida and Puerto Rico. Felts cites no specific inconsistencies between Tennessee law and SORNA that would have rendered it “impossible for [him] to comply with SORNA in Tennessee.” Appellant Br. at 17. Failing to actually register lies at the core of all sex-offender registry offenses, whether the state is SORNA-compliant or not. Felts clearly did not comply with the Tennessee law in effect at the time, which was consistent with SORNA insofar as it provided for and required registration with a registry, and thus there is no due-process problem. This claim fails.
Ill
Felts also argues that retroactive application of SORNA violates the Constitution’s Ex Post Facto Clause, as it in
*606
creases the punishments for Felts’s earlier crimes. This argument has been consistently rejected. In
Smith v. Doe,
the Supreme Court upheld Alaska’s sex-offender-registration statute, finding that it was not punitive, but civil in nature, and not in violation of the Ex Post Facto Clause.
IV
Next, Felts argues that SORNA’s “grant of power to the Attorney General to make it retroactive is unconstitutional” as “this provision effectively delegates broad-ranging legislative powers to the Attorney General, in violation of the nondelegation doctrine.”
Appellant Br.
at 24. SORNA delegates to the Attorney General the authority to decide how the registration requirements will be applied to sex offenders convicted “before July 27, 2006 or its implementation in a particular jurisdiction.” 42 U.S.C. § 16913(d). Felts relies on precedents from before the New Deal’s transformation of the Supreme Court—such as
Panama Refining Co. v. Ryan,
However, in light of post-New Deal cases, such as
National Broadcasting Co. v. United States,
V
Finally, Felts raises a commandeering argument — that is, that the enforcement of SORNA violates the Tenth Amendment because it “forces Tennessee officials to register sex offenders in compliance with SORNA’s onerous requirements before the State of Tennessee has an op
*607
portunity to voluntarily comply with SORNA.”
Appellant Br.
at 28. 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. Under the Tenth Amendment, federal officers are prohibited from conscripting,- or commandeering, state officials to administer and enforce a federal regulatory program.
Printz v. United States,
The United States counters that Felts “lacks standing to assert SORNA’s alleged violation.”
Appellee Br.
at 31. This is no longer an accurate statement of law. The United States’s brief was filed on June 6, 2011, ten days before the Supreme Court decided
Bond v. United States,
— U.S. -,
The United States is wrong to assert that Felts does not have an interest in challenging SORNA. As Justice Kennedy concluded, “Fidelity to principles of federalism is not for the States alone to vindicate.” Ibid. “Just as it is appropriate for an individual, in a proper case, to invoke separation-of-powers or checks-and-balances constraints, so too may a litigant, in a proper case, challenge a law as enacted in contravention of constitutional principles of federalism.” Ibid. As the Court stressed, “[t]he structural principles secured by the separation of powers protect the individual as well.” Id. at 2365.
Like Bond, Felts “is a party to an otherwise justiciable case or controversy, [and] is not forbidden to object that [his] injury results from disregard of the federal structure of our Government.” Id. at 2367. “An individual has a direct interest in objecting to laws that upset the constitutional balance between the National Government and the States when the enforcement of those laws causes injury that is concrete, particular, and redressable.” Id. at 2364. For Felts, the injury — incarceration in violation of SORNA — is quite “concrete, particular, and redressable.” An individual can assert that the enforcement of a law violates the Tenth Amendment, particularly when a defendant has a significant liberty interest at stake. Because Felts was prosecuted for violating SORNA, he has standing to challenge the act for being enforced in violation of the Tenth Amendment.
Nonetheless, Felts’s constitutional claim fails. Under
Printz,
the “Federal Government may neither issue directives requiring the States to address particular problems, nor command the States’ officers, or those of their political subdivisions, to administer or enforce a federal regulatory program.”
Printz,
Unlike the situation with the Brady Handgun Violence Prevention Act in Printz, Congress through SORNA has not commandeered Tennessee, nor compelled the state to comply with its requirements. Congress has simply placed conditions on the receipt of federal funds. A state is free to keep its existing sex-offender registry system in place (and risk losing funding) or adhere to SORNA’s requirements (and maintain funding). Since Felts’s conviction, Tennessee has come into substantial compliance with SORNA. The choice is that of the state.
SORNA does not violate the rights of Tennessee, or those of Felts as an individual, under the Tenth Amendment of the Constitution.
VI
The judgment of the district court is AFFIRMED.
Notes
. In
United States
v.
Samuels,
this court considered a related case where an offender moved from New York to Kentucky and claimed that "Kentucky law also requires he register as a sex offender, but at the time he moved to Kentucky, Kentucky law was silent as to his requirement to register under SORNA.”
