California Code, Government Code - GOV § 67539

(a) The authority and the department shall have the power to apply for and accept grants and loans from any department or agency of the United States of America to be used for the development of the regional transit terminal, or of any facilities ancillary thereto, and to enter into any agreement with such department or agency in relation to such grants or loans;  provided, however, that such agreement shall not conflict with any of the provisions of any indenture under which bonds of the commission are then outstanding.

(b) The authority and the department may accept contributions of money or property from any city, city and county, district, or political subdivision of the state for the development of the regional transit terminal.