California Code, Education Code - EDC § 92611

The minimum and maximum salary limits for laborers, workmen, and mechanics employed on an hourly or per diem basis need not be uniform throughout the state, but the regents shall ascertain, as to each such position, the general prevailing rate of such wages in the various localities of the state.

In fixing such minimum and maximum salary limits within the various localities of the state, the regents shall take into account the prevailing rates of wages in the localities in which the employee is to work and other relevant factors, and shall not fix the minimum salary limits below the general prevailing rate so ascertained for the various localities.