Every registrable offense falls into one of three tiers based on how serious the underlying crime is. The tier sets how long someone has to register, how often they have to verify in person, and how visible the listing is.
Tier Typical Offenses Registration Period Verification
Tier ILowest Misdemeanor-level offenses. Possession of child pornography in some states. First-time, non-aggravated false imprisonment of a minor.
15 years, sometimes reduced to 10 with a clean record Annually
Tier IIMiddle Sex trafficking. Coercion or enticement of a minor. Sexual contact with a minor age 13 to 17. Production of child pornography.
25 years Every 6 months
Tier IIIMost serious Aggravated sexual abuse. Sexual abuse of a child under 13. Non-parental kidnapping of a minor. Any Tier II offense after a prior Tier II or III conviction.
Life Every 3 months
Source, SORNA section 115, 34 U.S.C. section 20915, and the SMART Office. States can go longer than SORNA's floor. North Carolina puts Tier II at 30 years, for example. They can't go shorter without falling out of compliance.