The San Francisco Bay Conservation and Development Commission (BCDC) is a California state agency with a mission to protect and enhance San Francisco Bay and to encourage the responsible and productive use of the Bay for current and future generations. BCDC has planning and regulatory responsibility for development located in and around San Francisco Bay and along the shoreline of the nine counties surrounding the Bay. BCDC is guided in its decisions by laws it implements, the Coastal Zone Management Act, the McAteer-Petris Act, and the Suisun Marsh Preservation Act, its policy documents, the San Francisco Bay Plan, and Suisun Marsh Protection Plan, and other policy documents for specific planned areas around the Bay.
The McAteer-Petris Act of 1965, which created BCDC, required it to prepare an enforceable plan to guide the future protection and use of the Bay. The original Bay Plan was adopted by BCDC in 1968.