Cal. Pub. Util. Code § 99631

(a) Seventy nine million dollars ($79,000,000) shall be allocated to the joint powers agency required to be established pursuant to Section 130255, for the San Bernardino-Riverside-Orange County rail corridor, for expenditure for commuter rail projects as follows:
1. (1) In Riverside County, forty seven million dollars ($47,000,000).
2. (2) In Orange County, twenty seven million dollars ($27,000,000).
3. (3) In San Bernardino County, five million dollars ($5,000,000).
(b) If full or partial funding for the project in Riverside County becomes available from other sources, application may be made by the Riverside County Transportation Commission to use the portion of the grant not needed for the project for other rail projects in the county.
(c) If full or partial funding for the project in San Bernardino County becomes available from other sources, application may be made by the San Bernardino County Transportation Commission to use the portion of the grant not needed for the project for other rail projects in the county.
(d) If full or partial funding for the project in Orange County becomes available from other sources, application may be made by the Orange County Transportation Commission to use the portion of the grant not needed for the project for other rail projects in the county.