CA Gov't Code Section 17560

Reimbursement for state-mandated costs may be claimed as follows:

(a)

A local agency or school district may, by February 15 following the fiscal year in which costs are incurred, file an annual reimbursement claim that details the costs actually incurred for that fiscal year.

(b)

In the event revised claiming instructions are issued by the Controller pursuant to subdivision (c) of Section 17558 between November 15 and February 15, a local agency or school district filing an annual reimbursement claim shall have 120 days following the issuance date of the revised claiming instructions to file a claim.