### Question
What is the definition of tier I sex offender?


### Answer
The definition of **tier I sex offender** is as follows in *34 U.S.C. § 20911*:

> a sex offender other than a tier II or tier III sex offender

#### Citation:
  - *34 U.S.C. § 20911*
  - Heading: **Subtitle II-Protection of Children and Other Persons > CHAPTER 209-CHILD PROTECTION AND SAFETY > SUBCHAPTER I-SEX OFFENDER REGISTRATION AND NOTIFICATION > Part A-Sex Offender Registration and Notification**

