Cal. Pub. Util. Code § 30703
The district may accept contributions or loans from the State of California or any public agency, for the purpose of planning, acquiring, constructing, developing, jointly developing, operating, or maintaining a rapid transit system, including, without limitation, the payment of principal and interest and providing security funds for bonds or notes of the district issued for any of those purposes, and may enter into contracts and cooperate with, and accept cooperation from, the state or any public agency therefor. The district is a public rapid transit district, rapid transit district, or any other type of public agency which is authorized by any other law to receive those contributions, loans, or cooperation, including, without limitation, Sections 11005.1 and 11104 of the Revenue and Taxation Code. The district may do any and all things necessary, within the limitations imposed by this part or by any indebtedness created pursuant to this part, in order to avail itself of those contributions, loans, or cooperation.
Ca. Pub. Util. Code § 30703