This division shall constitute California’s coastal zone management program within the coastal zone for purposes of the Federal Coastal Zone Management Act of 1972 (16 U.S.C. 1451, et seq.) and any other federal act heretofore or hereafter enacted or amended that relates to the planning or management of coastal zone resources; provided, however, that within federal lands excluded from the coastal zone pursuant to the Federal Coastal Zone Management Act of 1972, the State of California shall, consistent with applicable federal and state laws, continue to exercise the full range of powers, rights, and privileges it now possesses or which may be granted.