49 C.F.R. § 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:
Administrative law judge means an administrative law judge appointed pursuant to the provisions of 5 U.S.C. 3105 .
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.
Date of service means-
Final Agency Order means an order issued by the TSA Final Decision Maker.
Decision denying a review of a waiver means a document issued by an administrative law judge denying a waiver requested under 49 CFR 1515.7 .
Mail includes U.S. mail, or use of an express courier service.
Party means the applicant or the agency attorney.
Personal delivery includes hand-delivery or use of a contract or express messenger service, but does not include the use of Government interoffice mail service.
Properly addressed means a document that shows an address contained in agency records, a residential, business, or other address submitted by a person on any document provided under this subpart, or any other address shown by other reasonable and available means.
Substantial Evidence means such relevant evidence as a reasonable person might accept as adequate to support a conclusion.
Security threat assessment means the threat assessment for which the applicant has applied, as described in 49 CFR 1515.1 .
TSA Final Decision Maker means the Administrator, acting in the capacity of the decision maker on appeal, or any person to whom the Administrator has delegated the Administrator's decision-making authority. As used in this subpart, the TSA Final Decision Maker is the official authorized to issue a final decision and order of the Administrator.
49 C.F.R. §1515.3