California Code, Streets and Highways Code - SHC § 2562.1

(a) Funding for the program established in subdivision (a) of Section 2560.5 in a participating area shall be based 25 percent on the number of urban freeway lane miles in the participating area to the total number of freeway lane miles in all the participating areas, 50 percent on the basis of the ratio of the population of the participating area to the total population of all the participating areas, and 25 percent on the basis of traffic congestion as ascertained by the department pursuant to the most recent Statewide Highway Traffic Congestion Monitoring Program.A regional or local agency submitting an application after July 1, 2003, for funding shall demonstrate in the application an overall benefit-cost ratio of 3 to 1. The department shall determine the benefit-cost ratio methodology.

(b) If a regional or local agency submits an application for funding that is approved by the department before December 31 of any year and additional funding is not provided to the baseline funding allocation, the department shall allocate the funding allocation at a maximum over three years as follows: