### Question
How is the term biometric identifier defined?


### Answer
The term **biometric identifier** is defined in *49 U.S.C. § 44903* as the following:

> a technology that enables the automated identification, or verification of the identity, of an individual based on biometric information

#### Citation:
  - *49 U.S.C. § 44903*
  - Heading: **SUBTITLE VII-AVIATION PROGRAMS > PART A-AIR COMMERCE AND SAFETY > subpart iii-safety > CHAPTER 449-SECURITY > SUBCHAPTER I-REQUIREMENTS**

