Cal. Public Resources Code § 5565.5

(a) With the consent of the board of directors of a district, an irrevocable offer of dedication of real property or any interest in real property for any of the purposes authorized by this article may be made to the district pursuant to this section. The offer of dedication shall be executed, acknowledged, and recorded in the same manner as a conveyance of real property. The offer of dedication, when recorded in the office of the county recorder, shall be irrevocable and may be accepted at any time by the board of directors of the district. (b) An offer of dedication may be terminated, and the right to accept the offer abandoned, by a majority vote of the board of directors of the district and only if the board of directors makes both of the following findings: (1) The offer of dedication was never accepted and, therefore, termination or abandonment of the offer does not constitute a conveyance of an interest in real property dedicated for park or open-space purposes. (2) Now, or in the future, the district cannot effectively use the real property, or interest in real property, that would be conveyed by the offer of dedication for park or open-space purposes. (c) The procedure prescribed by this section is alternative to any other procedure authorized by law.