49 C.F.R. § 672.5
As used in this part:
Administrator means the Federal Transit Administrator or the Administrator's designee.
Contractor means an entity that performs tasks on behalf of FTA, a State Safety Oversight Agency, or public transportation agency through contract or other agreement.
Designated personnel means:
Directly responsible for safety oversight means public transportation agency personnel whose primary job function includes the development, implementation and review of the agency's safety plan, and/or the SSOA requirements for the rail fixed guideway public transportation system pursuant to 49 CFR parts 659 or 674.
Examination means a process for gathering or analyzing facts or information related to the safety of a public transportation system.
FTA means the Federal Transit Administration.
Public transportation agency means an entity that provides public transportation service as defined in 49 U.S.C. 5302 and that has one or more modes of service not subject to the safety oversight requirements of another Federal agency.
Rail fixed guideway public transportation system means any fixed guideway system as defined in § 674.7 of this chapter.
Recipient means a State or local governmental authority, or any other operator of a public transportation system receiving financial assistance under 49 U.S.C. chapter 53.
Safety audit means a review or analysis of safety records and related materials, including, but not limited to, those related to financial accounts.
State means a State of the United States, the District of Columbia, Puerto Rico, the Northern Mariana Islands, Guam, American Samoa, and the Virgin Islands.
State Safety Oversight Agency (SSOA ) means an agency established by a State that meets the requirements and performs the functions specified by 49 U.S.C. 5329(e) and the regulations set forth in 49 CFR parts 659 and 674.
49 C.F.R. §672.5