Tier II lasts 25 years, and is reserved for distributing pornography and any other third degree sex offense. Tier III, which is lifelong, is for. For the rest of their lives, those classified as tier III sex offenders must register every 90 days. The second tier includes kidnapping with sexual. Tier III Sexual Offender – Lifetime Registration Ten-year registrant – 10 Year Registration Lifetime Registrant – Lifetime Registration Sexual Violent Predator. Tier II Sexual Offenses – 25 Year Registration. Offenders convicted of the following offenses which occurred on or after December 20, shall be classified as.