Cal. PUC § 30701

The district may accept contributions or loans from the United States, or any department, instrumentality, or agency thereof, for the purpose of financing the acquisition, construction, development, joint development, maintenance, and operation of transit facilities, and may enter into contracts and cooperate with, and accept cooperation from, the United States, or any department, instrumentality, or agency thereof, in the acquisition, construction, development, joint development, maintenance, and operation of any transit facilities in accordance with any legislation which Congress may have adopted or may hereafter adopt, under which aid, assistance, and cooperation may be furnished by the United States in the acquisition, construction, development, joint development, maintenance, and operation or in financing the acquisition, construction, development, joint development, maintenance, and operation of any transit facilities. 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 the aid, assistance, and cooperation under any federal legislation now or hereafter enacted. Any bonds, notes, equipment trust certificates, or like evidences of indebtedness issued for a purpose authorized by this section shall be issued in accordance with Chapter 7 (commencing with Section 30900).