1. Short title This Act may be cited as the Clean School Bus Act of 2019 . 2. Clean School Bus Grant Program (a) Definitions In this section: (1) Electric school bus The term electric school bus means a school bus that is propelled— (A) to a significant extent by an electric motor that— (i) draws electricity from a battery; and (ii) is capable of being recharged from an external source of electricity; or (B) by 1 or more hydrogen fuel cells. (2) Eligible entity The term eligible entity means— (A) 1 or more local, regional, or State governmental entities responsible for— (i) providing school bus service to 1 or more public school systems; or (ii) purchasing school buses for use by 1 or more public school systems; (B) 1 or more contracting entities that provide school bus service to 1 or more public school systems; (C) a nonprofit school transportation association