California Code, Fish and Game Code - FGC § 1727

(a) In order to provide for a diversity of available angling experiences throughout the state, it is the intent of the Legislature that the commission maintain the existing wild trout program, and as part of the program, develop additional wild trout waters in the more than 20,000 miles of trout streams and approximately 5,000 lakes containing trout in California.

(b) The department shall prepare a list of no less than 25 miles of stream or stream segments and at least one lake that it deems suitable for designation as wild trout waters.  The department shall submit this list to the commission for its consideration at the regular October commission meeting.

(c) The commission may remove any stream or lake that it has designated as a wild trout fishery from the program at any time.  If any of those waters are removed from the program, an equivalent amount of stream mileage or an equivalent size lake shall be added to the wild trout program.

(d) The department shall prepare and complete management plans for all wild trout waters not more than three years following their initial designation by the commission and update the management plan every five years following completion of the initial management plan.