5 CFR 1651.1 - Definitions.
(a) Definitions generally applicable to the Thrift Savings Plan are set forth at 5 CFR 1690.1.
(b) As used in this subpart:
Administrative finding means an evidence-based determination reached by a hearing, inquiry, investigation, or trial before an administrative agency of competent jurisdiction in any State, territory or possession of the United States.
TIN means a taxpayer identification number. A TIN may be a Social Security number (SSN), an employer identification number (EIN), or an individual taxpayer identification number (ITIN).