Cal. Pub. Res. Code § 6701

Subject to the provisions of Section 6702, no amendment, modification, or revocation, in whole or in part, of any grant of tide or submerged lands heretofore made or that may be hereafter made by the Legislature shall impair or affect the rights or obligations of third parties, including lessees, lenders for value, holders of contracts conferring the right to the use and occupation of, or the right to conduct operations upon or within such lands, arising from leases, contracts, or other instruments lawfully entered into prior to the effective date of such amendment, modification, or revocation.