67 Pa. Code § 427.1
(b) In addition, the following words and terms, when used in this chapter, have the following meanings, unless the context clearly indicates otherwise:
Act—74 Pa.C.S. Chapter 15 (relating to sustainable mobility options).
Department—The Department of Transportation of the Commonwealth.
Route guarantee—A conditional commitment, either express or implied, by a private or public entity to a local transportation organization to provide financial compensation in return for the provision of public transportation service to a designated area or destination which would not be served without the financial compensation.