10.12.020 Official traffic-control devices required for enforcement purposes.
   No provisions of the Vehicle Code or of this chapter for which official traffic-control devices are required shall be enforced against an alleged violator unless appropriate official traffic-control devices are in place giving notice of such provision of the traffic laws.
(Ord. 98 § 1 (part), 1993: Ord. 3 § 1 (part), 1991: prior code § 12.04.002)