Cal. Government Code § 54999.3

However, the imposition of a capital facilities fee on any school district, county office of education, community college district, the California State University, the University of California, or state agency shall be subject to the following: (a) Where necessary to defray the actual construction costs of that portion of a public utility facility actually serving a public agency, any public agency providing public utility service on or after July 21, 1986, may continue to charge any capital facilities fee which was imposed prior to that date on the public agency using the public utility service and was not protested or challenged pursuant to law prior to January 1, 1987, or increase that capital facility fee in an amount not to exceed the percentage increase in the Implicit Price Deflator for State and Local Government Purchases, as determined by the Department of Finance and any public agency shall pay any capital facilities fees authorized by this subdivision. (b) On and after July 21, 1986, any public agency proposing to initially impose a capital facilities fee or to increase an existing capital facilities fee in excess of the amount set forth in subdivision (a), may do so after agreement has been reached between the two agencies through negotiations entered into by both parties. (c) Upon request of the affected public agency or upon increase pursuant to subdivision (a), the public agency imposing or increasing the fee shall identify the amount of the capital facilities fee. The public agency imposing or increasing the capital facilities fee has the burden of producing evidence to establish that the capital facilities fee is nondiscriminatory and that the amount of the capital facilities fee does not exceed the amount necessary to provide capital facilities for which the fee is charged.