SORNA & Sex Offender Registration

The Sex Offender Registration and Notification Act (SORNA) — enacted as Title I of the Adam Walsh Child Protection and Safety Act of 2006 (34 U.S.C. §§ 20911–20932) — established the first comprehensive federal framework for sex offender registration, creating a three-tier classification system that requires convicted sex offenders to register in every state where they live, work, or attend school, with registration periods of 15 years (Tier I), 25 years (Tier II), or lifetime (Tier III) depending on the severity of the offense. The National Sex Offender Public Website (NSOPW) aggregates state registries into a single searchable database. SORNA replaced the patchwork of state Megan's Law registration systems (triggered by Megan Kanka's 1994 murder in New Jersey) with federal minimum standards — but states have wide discretion in exceeding those standards, and compliance with SORNA's requirements has been uneven; fewer than half of states have been deemed "substantially compliant" with federal standards. The federal failure-to-register offense (18 U.S.C. § 2250) carries up to 10 years imprisonment. SORNA's effectiveness is a subject of ongoing criminological debate: recidivism research suggests sex offenders as a class have lower recidivism rates than commonly perceived, and residence restrictions (barring registrants from living within defined distances of schools or parks) have been linked to housing instability without clear safety benefits. Registration requirements can last a lifetime for Tier III offenders — covering a range of conduct from those convicted of contact offenses against minors to those convicted of adult offenses with no indication of risk to children.

Current Law (2026)

Legal Authority

• 34 U.S.C. § 20913 — Registry requirements (sex offenders must register and keep registration current in each jurisdiction where they reside, are employed, or attend school; must appear in person periodically to verify information; failure to register is a federal crime punishable by up to 10 years)
• 34 U.S.C. § 20914 — Information required (registration includes: name and aliases, Social Security number, residence address, employer address, school address, vehicle information, physical description, photograph, fingerprints, DNA sample, internet identifiers)
• 34 U.S.C. § 20915 — Duration of registration (Tier I: 15 years, reducible to 10 with clean record; Tier II: 25 years; Tier III: lifetime; tier classification based on offense of conviction, not risk assessment)
• 34 U.S.C. § 20920 — Public access through the Internet (each jurisdiction must maintain a public sex offender registry website; certain information must be publicly accessible; exceptions for victim identity and certain juvenile offenders)
• 34 U.S.C. § 20922 — Dru Sjodin National Sex Offender Public Website (DOJ maintains NSOPW.gov — a single website linking all state, territory, and tribal sex offender registries for public searching)

How It Works

Sex offender registration is one of the most extensive systems of post-conviction supervision in American law — requiring nearly 900,000 individuals to register their location, employment, and personal information with the government for periods ranging from 15 years to life. SORNA established national minimum standards, but the system is primarily implemented and operated by states. SORNA classifies offenders into three tiers based on offense of conviction (not individual risk assessment): Tier I for the lowest-severity offenses (typically misdemeanors and non-contact offenses) requiring 15-year registration with annual in-person verification; Tier II for offenses involving minors including sexual exploitation, prostitution of minors, and child pornography production, requiring 25-year registration with semi-annual verification; and Tier III for the most serious offenses — sexual acts with minors under 13, forcible sexual acts, kidnapping of minors — requiring lifetime registration with quarterly verification. Registered individuals must keep current: name and all aliases, Social Security number, residence/employment/school addresses, vehicle information, physical description, photograph, fingerprints, DNA sample, and internet identifiers. Moving to a new jurisdiction requires re-registration within 3 business days; failure to register is a federal felony investigated by the U.S. Marshals Service punishable by up to 10 years imprisonment.

State registries must be publicly accessible via the internet, and the Dru Sjodin National Sex Offender Public Website (NSOPW.gov) links all state, territory, and tribal registries into one searchable portal. Modern registration law began with Megan's Law (1996), named after Megan Kanka — a 7-year-old murdered by a neighbor with prior convictions — which required states to establish registries and notify communities. The Adam Walsh Child Protection and Safety Act (2006) enacted SORNA's comprehensive federal framework. Constitutional challenges have been extensive: the Supreme Court upheld Alaska's registration law as non-punitive in Smith v. Doe (2003), finding it a civil regulatory scheme that can be applied retroactively without violating the Ex Post Facto Clause. But state courts have increasingly found that the cumulative burden of modern registration — lifetime duration, extensive public notification, residency restrictions, internet restrictions, and quarterly in-person verification — has become so punitive in effect that retroactive application violates state constitutional protections, leading several states to narrow their requirements.

How It Affects You

If you are subject to sex offender registration requirements: Compliance is not optional — failure to register or update your registration is a federal felony (up to 10 years, 34 U.S.C. § 20913) investigated by the U.S. Marshals Service. The obligations are broader than many people realize: you must register in every jurisdiction where you reside, are employed, or attend school — if you live in one state and work in another, you register in both. Any change of address, employment, or school enrollment requires an in-person update within 3 business days. Registration information required includes internet identifiers (email addresses, screen names, instant message handles), vehicle information, and DNA. Tier classification is based on the offense of conviction — verify your tier by contacting your state's sex offender registration authority (often a state police or DOJ unit). Some states provide petition processes for early removal from the registry for Tier I offenders with clean records after 10 years — consult an attorney about eligibility if you've completed registration without violations. State requirements often exceed SORNA's federal minimums: verify your specific state's rules and in-person verification schedule (annually, semi-annually, or quarterly depending on tier) through your state registry office.

If you're a parent, community member, or school official who wants to know about registered sex offenders in your area: The Dru Sjodin National Sex Offender Public Website (NSOPW.gov) provides a single search portal for all state, territorial, and tribal sex offender registries — searchable by name, zip code, or address. Several important caveats for interpreting registry results: registries include a wide range of offense severity — from lifetime-registration Tier III offenders who committed violent crimes against young children, to Tier I registrants who were convicted of non-contact or misdemeanor offenses as teenagers. The registry tells you the offense of conviction, but not the individual's current risk level. Research consistently shows that most sex offenses against children are committed by someone known to the victim — a neighbor, family member, or acquaintance — not by strangers whose locations are searchable online. Registry information is most useful as one input to situational awareness, not as a comprehensive safety guarantee.

If you're a landlord, employer, or housing provider making decisions about registered sex offenders: Sex offender status is public information — the registry is publicly accessible and employers and landlords in most states can consider it. However, several legal constraints apply: the Fair Housing Act and various state fair housing laws may limit how a landlord can use registry status in housing decisions, depending on the specific circumstances (blanket exclusion policies may be challenged). Some states have enacted specific residency restrictions prohibiting registered sex offenders from living within 500–2,500 feet of schools, parks, daycare centers, or playgrounds — these restrictions vary by state and tier. Verify your state's restrictions through your state's SORNA implementing agency. Note that residency restrictions have been widely criticized by criminologists and courts as counterproductive: they tend to concentrate registrants in areas with fewer restricted zones, increase homelessness and instability, and have not been shown to reduce recidivism — some research suggests they increase it. Several states have scaled back or eliminated residency restrictions for this reason.

If you're an attorney representing someone facing sex offense charges or seeking post-conviction relief: The registration consequences of a conviction are often as significant as the criminal sentence itself and must be explained to clients at the plea stage (Padilla v. Kentucky analogy). Tier classification determines registration duration (15/25/lifetime) — understand the tier for your client's charged and potential plea offense before advising on plea strategy. Constitutional challenges to registration have been gaining traction in state courts: while the Supreme Court upheld retroactive application in Smith v. Doe (2003), several state courts have found that the cumulative burden of modern registration requirements (lifetime registration, quarterly in-person verification, internet identifier disclosure, residency restrictions, public notification) crosses the threshold from civil regulation to effective punishment, violating state Ex Post Facto protections. States that have narrowed registration in response to these rulings include Michigan, Indiana, and others — monitor your state's case law. International Megan's Law (2016) requires the State Department to notify destination countries when registered sex offenders travel abroad — advise clients about this before any international travel.

State Variations

• SORNA sets minimum standards, but states implement their own registration systems — many exceed SORNA requirements
• Not all states have achieved "substantial implementation" of SORNA; non-compliant states face 10% Byrne JAG funding reduction
• Some states use risk-based classification (individual assessment) rather than SORNA's offense-based tier system
• State residency restrictions vary — some prohibit registered offenders from living within 500-2,500 feet of schools, parks, or daycare centers
• Duration of registration varies by state — some states require lifetime registration for all offenses
• State public notification laws differ in how much information is publicly available

Implementing Regulations

The Department of Justice SMART Office regulations implementing SORNA live at 28 CFR Part 72 — Sex Offender Registration and Notification. Key provisions:

• § 72.3 — Universal applicability: SORNA registration requirements apply to all sex offenders, regardless of when the conviction occurred — including convictions that pre-date SORNA's 2006 enactment; the retroactivity of SORNA was upheld in Carr v. United States (2010) with respect to post-enactment travel, and the AG's authority to apply SORNA retroactively was affirmed in Reynolds v. United States (2012)
• § 72.4 — Where to register: a sex offender must register in every jurisdiction where they (a) reside, (b) are employed, or (c) are a student; for initial registration only, they must also register in the jurisdiction of conviction; this means a sex offender living in one state, working in another, and attending school in a third must maintain registrations in all three
• § 72.5 — Duration of registration: based on the tier of offense — Tier I offenders (least serious, e.g., simple assault with sexual motivation) register for 15 years, reduced to 10 if they maintain a clean record; Tier II offenders (intermediate, e.g., abusive sexual contact with a minor) register for 25 years; Tier III offenders (most serious, e.g., aggravated sexual abuse, sex trafficking) register for life; time in custody or civil commitment does not count toward the registration period
• § 72.6 — Information required: registrants must provide: name (including any aliases), date of birth, Social Security number, all residence, employment, and school addresses, all phone numbers and email addresses, all online identifiers (usernames, screen names), all vehicle information (license plates, description), international travel plans with 21 days' advance notice, all passports and immigration documents, and a current photograph and fingerprints
• § 72.7 — Registration timing: initial registration must occur before release from imprisonment following the triggering conviction; if not incarcerated at conviction, registration must occur within 3 business days; sex offenders must update registrations within 3 business days of any change in residence, employment, or student status; all registrants must appear in person at a registration office at least annually to verify information (Tier I), every 180 days (Tier II), or every 90 days (Tier III)
• § 72.8 — Criminal liability for failure to register: a sex offender who knowingly fails to register or update as required is subject to federal felony prosecution under 18 U.S.C. § 2250 if they travel in interstate or foreign commerce or enter or leave Indian country; maximum sentence is 10 years (or up to 30 years if the failure to register was combined with commission of a violent crime)

SORNA established a national baseline for sex offender registration that all states, the District of Columbia, U.S. territories, and federally recognized Indian tribes must substantially implement — or face a 10% reduction in federal Byrne Justice Assistance Grant funding. Implementation has been uneven: as of 2026, fewer than 20 jurisdictions have achieved full substantial implementation, while others have met the standard partially or not at all. The compliance gap reflects genuine policy disagreements (some states object to the retroactivity requirements or the tier classifications) and resource limitations (updating existing registry systems to meet SORNA's technical standards is expensive). The SMART Office provides technical assistance to jurisdictions working toward compliance and publishes annual compliance determinations.

District of Columbia Sex Offender Registration — CSOSA (28 CFR Part 811)

While SORNA (Part 72) establishes the national framework, the Court Services and Offender Supervision Agency for the District of Columbia (CSOSA) administers a parallel sex offender registration system specifically for the District of Columbia under 28 CFR Part 811, implementing the D.C. Sex Offender Registration Act. CSOSA is the federal agency that performs supervision and registration functions for D.C. offenders — filling the role that state corrections and supervision agencies play elsewhere.

• § 811.1 — Scope: Part 811 implements CSOSA's sex offender registration functions for the District of Columbia, authorized by the Consolidated Appropriations Act of 2000; CSOSA's Part 811 regulations operate alongside D.C.'s own sex offender registration regulations (D.C. Official Code § 22-4001 et seq.) — federal and local requirements both apply to sex offenders in the District
• § 811.10 — Changes in registration information: a sex offender under CSOSA jurisdiction must notify CSOSA's Sex Offender Registration Unit when they cease to live at their registered address, move, leave or obtain a new job, leave or enroll in school, or change their name; notification deadlines mirror SORNA standards (3 business days for most changes); the notification requirement is continuous throughout the registration period
• § 811.11 — Compliance flexibility: a sex offender may be excused from strict compliance with time limits if they notify CSOSA in advance of circumstances that will interfere with compliance (hospitalization, incarceration, travel emergency) and make alternative arrangements with CSOSA; the flexibility provision recognizes that rigid deadlines can create technical violations for registrants who are genuinely trying to comply
• § 811.12 — Penalties: violation of the Act or CSOSA's registration requirements may result in criminal prosecution under D.C. law; CSOSA's probation and supervised release officers may also initiate revocation proceedings for supervised offenders who violate registration requirements — an additional enforcement mechanism beyond criminal prosecution
• § 811.14 — Definitions: key terms (attends school, court, in custody or under supervision, sex offender, works) have the same meanings as in the D.C. Sex Offender Registration Act of 1999, integrating the federal CSOSA regulations with the underlying D.C. statutory framework

Part 811 reflects the unique governance structure of the District of Columbia, where Congress created a federal agency (CSOSA) to carry out criminal supervision functions that states perform through their own corrections and probation departments. CSOSA's sex offender registration role bridges the federal-local gap — D.C. is simultaneously a jurisdiction with its own registration law and one where federal oversight (CSOSA) implements those requirements. Offenders in D.C. are subject to both Part 811 (CSOSA) and Part 72 (SORNA national standards), whichever is more stringent for any particular requirement.

Pending Legislation

• HR 7624 — Bar registered sex offenders from federally funded shelters, strip funding from noncompliant shelters. Status: Introduced.
• HR 6208 — Ban sex offenders from using interstate commerce for surrogacy, penalties up to 18 years. Status: Introduced.
• HR 7293 — Ban sex offenders from obtaining children via surrogacy, penalties up to 10 years. Status: Introduced.
• HR 1205 (Rep. Mace, R-SC) — Limit sex offenders' disaster shelter access, designated shelters, penalties up to 5 years. Status: In committee.
• HR 779 (Rep. Issa, R-CA) — Force states to report sexually dangerous persons, expand SORNA court reporting, bar Medicaid/Medicare. Status: Introduced.
• HR 393 (Rep. Luna, R-FL) — Raise federal sentences for crimes against children to death/life imprisonment. Status: Introduced.

Recent Developments

• Courts have increasingly scrutinized the constitutionality of retroactive registration requirements, with several state supreme courts finding that modern registration is punitive in effect
• Research on whether sex offender registries reduce recidivism has produced mixed results, with some studies finding no significant public safety benefit
• Internet identifier requirements have been challenged on First Amendment grounds
• Residency restrictions — which interact with supervised release conditions and juvenile justice policy for minor offenders — have been criticized for creating homelessness and instability among registered offenders, potentially increasing rather than decreasing risk
• International Megan's Law (2016) requires notification to destination countries when registered offenders travel internationally