On or before December 31, 1973, every city and county shall prepare, adopt and submit to the Secretary of the Resources Agency a local open-space plan for the comprehensive and long-range preservation and conservation of open-space land within its jurisdiction. Every city and county shall by August 31, 1972, prepare, adopt and submit to the Secretary of the Resources Agency, an interim open-space plan, which shall be in effect until December 31, 1973, containing, but not limited to, the following:
Ca. Gov. Code § 65563