Cal. Pub. Util. Code § 99268.7

Any unallocated funds resulting from the limitations of Section 99268 may be used for capital intensive transit-related improvements. Every effort shall be made to obtain federal funds for the purposes of this section. Such improvements shall include, but not be limited to, park-and-ride lots, terminal facilities, bus waiting shelters, exclusive lanes for buses, and the acquisition of vehicles and rolling stock for replacement purposes.