Cal. Gov. Code § 65976
As a part of the notice required by Section 65971, or in any event before the city council or board of supervisors make a decision to require the dedication of land or the payment of fees, or both, or to increase the amount of land to be dedicated or the fees to be paid, or both, the governing body of the school district shall submit a schedule to the city council or board of supervisors specifying how the school district will use the land or fees, or both, to solve the conditions of overcrowding. The schedule shall include the school sites to be used, the classroom facilities to be made available, and the times when those facilities will be available. If the governing body of the school district cannot meet the schedule, it shall submit modifications to the city council or board of supervisors and the reasons for the modifications.
Ca. Gov. Code § 65976