California Code, Public Resources Code - PRC § 30513

(a) The local government shall submit to the commission the zoning ordinances, zoning district maps, and, where necessary, other implementing actions that are required pursuant to this chapter.

(b) If within 60 working days after receipt of the zoning ordinances, zoning district maps, and other implementing actions, the commission, after public hearing, has not rejected the zoning ordinances, zoning district maps, or other implementing actions, they shall be deemed approved. The commission may only reject zoning ordinances, zoning district maps, or other implementing actions on the grounds that they do not conform with, or are inadequate to carry out, the provisions of the certified land use plan. If the commission rejects the zoning ordinances, zoning district maps, or other implementing actions, it shall give written notice of the rejection specifying the provisions of land use plan with which the rejected zoning ordinances do not conform or which it finds will not be adequately carried out together with its reasons for the action taken.

(c) The commission may suggest modifications in the rejected zoning ordinances, zoning district maps, or other implementing actions, which, if adopted by the local government and transmitted to the commission, shall be deemed approved upon confirmation by the executive director.

(d) The local government may elect to meet the commission's rejection in a manner other than as suggested by the commission and may then resubmit its revised zoning ordinances, zoning district maps, and other implementing actions to the commission.

(e) If a local government requests that the commission not suggest modifications in the rejected zoning ordinances, zoning district maps, or other implementing ordinances, the commission shall not do so.