The Delta Protection Commission was established by the Delta Protection Act of 1992. The Commission is to develop a long-term resource management plan for the Delta Primary Zone. As stated in the Act, the goals of this regional plan are to "protect, maintain and, where possible, enhance and restore the overall quality of the delta environment, including, but not limited to, agriculture, wildlife habitat, and recreational activities." The Act acknowledges that agricultural land within the Delta is of significant value as open space and habitat for water fowl using the Pacific Flyway. As such, the regional plan is to protect agricultural land within the Primary Zone from the intrusion of nonagricultural uses. All local general plans for areas within the Primary Zone are required to be consistent with the regional plan. The Secondary Zone consists of areas within the statutory Delta (as defined in Section 12220 of the California Water Code) but not part of the Primary Zone. Local general plans for land use in the Secondary Zone are not required to conform to a regional plan.