California Code, Public Utilities Code - PUC § 21602

(a) Subject to the terms and within the limits of special appropriations made by the Legislature, the department may render financial assistance by grant or loan, or both, to political subdivisions jointly, in the planning, acquisition, construction, improvement, maintenance, or operation of an airport owned or controlled, or to be owned or controlled, by a political subdivision or subdivisions, if the financial assistance has been shown by public hearing to be appropriate to the proper development or maintenance of a statewide system of airports. Financial assistance may be furnished in connection with federal or other financial aid for the same purpose.

(b) Notwithstanding subdivision (a) of Section 21681, a city or county designated by the Airport Land Use Commission is eligible to compete for funds held in the Aeronautics Account in the State Transportation Fund on behalf of any privately owned, public use airport that is included in an airport land use compatibility plan. However, the city or county shall be eligible to compete for the funds only when zoning on the parcel is tantamount to a taking of all reasonable uses that might otherwise be permitted on the parcel. The eligible airport and aviation purposes are limited to those specified in paragraphs (4), (5), (6), (9), and (14) of subdivision (f) of Section 21681, and, further, any capital improvements or acquisitions shall become the property of the designated city or county. Matching funds pursuant to subdivision (a) of Section 21684 may include the in-kind contribution of real property, with the approval of the department.

(c) Any grant of funds held in the Aeronautics Account in the State Transportation Fund on behalf of any privately owned airports shall contain a covenant that the airport remain open for public use for 20 years. Any grant made to a city or county on behalf of a privately owned airport shall contain a payback provision based upon existing market value at the time the private airport ceases to be open for public use.

(d) Upon request, California Aid to Airports Program (CAAP) projects included within the adopted Aeronautics Program, may be funded in advance of the year programmed, with the concurrence of the department, in order to better utilize funds in the account.

(e) There is, in the Aeronautics Account in the State Transportation Fund, a subaccount, the Local Airport Loan Account, for the management of funds for loans to local entities pursuant to this chapter. All funds for airport loans in the Special Deposit Fund are hereby transferred to the subaccount. With the approval of the Department of Finance, the department shall deposit in the subaccount all money received by the department from repayments of, and interest on, existing and future airport loans, including, but not limited to, the sums of five hundred forty thousand dollars ($540,000) in repayments from the General Fund due in July 1987, and July 1988, and may, upon appropriation, transfer additional funds from the Aeronautics Account in the State Transportation Fund to the subaccount as the department deems appropriate. Interest on money in the subaccount shall be credited to the subaccount as it accrues.