United States v. Alexander

HARTZ, Circuit Judge.

Under the Sex Offender Registration and Notification Act (SORNA), 42 U.S.C. §§ 16901-16962, a sex offender must register in each jurisdiction where he resides, see id. § 16913(a), and update that registration promptly upon moving, see id. § 16913(c). Failure to do so is a crime. See 18 U.S.C. § 2250. The duration of the offender’s registration requirement depends on his “tier,” which reflects the severity of his predicate sex offense. See 42 U.S.C. §§ 16911(2)-(4), 16915(a). The offender’s tier also affects his guidelines sentencing range if he is convicted of failure to…