Applicant means an individual who has applied for one of the security threat assessments identified in 49 CFR 1515.1. This includes an individual who previously applied for and was found to meet the standards for the security threat assessment but TSA later determined that the individual poses a security threat.
49 CFR § 1515.3
The terms used in 49 CFR parts 1500, 1540, 1570, and 1572 also apply in this part. In addition, the following terms are used in this part: