Cal. Pub. Util. Code § 21684
(a) No payment shall be made to a public entity pursuant to this article unless the public entity has established a special aviation fund in which all payments received by a public entity under this article shall be deposited for expenditure solely for airport and aviation purposes. No payment shall be made to a public entity for a project pursuant to Section 21683.2 unless the public entity deposits in its special aviation fund a sum from other than state or federal sources, established annually by the commission at not less than 10 percent nor more than 50 percent of the nonfederal portion of the project.
Notwithstanding the provisions of this subdivision requiring matching funds, the department shall pay to each public entity owning and operating an airport or airports the annual amount that is in accordance with Section 21682.