(a) The Court Facilities Architecture Revolving Fund is hereby established in the State Treasury, and, notwithstanding Section 13340, the fund is continuously appropriated, without regard to fiscal years.

1. (1) With the approval of the Department of Finance, and except as otherwise specified in this section, there shall be transferred to, or deposited in, the fund all money appropriated, contributed, or made available from any source, including sources other than state appropriations, for the purposes described in paragraph (2).
2. (2) Moneys transferred to, or deposited in, the fund shall be those administered by the Administrative Office of the Courts under subdivision (b) of Section 70374 for the construction, alteration, repair, and improvement of trial and appellate court buildings, including, but not limited to, services, new construction, major construction, minor construction, maintenance, improvements, and equipment, and other building and improvement projects.
3. (3) In addition to the approval of the Department of Finance, the transfer or deposit of moneys into the fund shall be authorized by the Administrative Office of the Courts, both with regard to funds appropriated for the purposes specified in paragraph (2) or, as to funds from sources other than state appropriations, subject to any written agreement between the contributor or contributors of funds and the Administrative Office of the Courts.

(b) Money from state sources transferred to, or deposited in, the fund for construction, services, equipment, repair, or improvement shall be an amount necessary based on the actual, known, or firm fixed price, upon approval of the Department of Finance.

Any amount available in the state appropriation that is in excess of the amount necessary based upon final actual costs of the completed contract shall be transferred immediately to the credit of the fund from which the appropriation was made.