21461. (a) It is unlawful for a driver of a vehicle to fail to obey
a sign or signal defined as regulatory in the federal Manual on
Uniform Traffic Control Devices, or a Department of Transportation
approved supplement to that manual of a regulatory nature erected or
maintained to enhance traffic safety and operations or to indicate
and carry out the provisions of this code or a local traffic
ordinance or resolution adopted pursuant to a local traffic
ordinance, or to fail to obey a device erected or maintained by
lawful authority of a public body or official.
21461. (a) It is unlawful for a driver of a vehicle to fail to obey a sign or signal defined as regulatory in the federal Manual on Uniform Traffic Control Devices, or a Department of Transportation approved supplement to that manual of a regulatory nature erected or maintained to enhance traffic safety and operations or to indicate and carry out the provisions of this code or a local traffic ordinance or resolution adopted pursuant to a local traffic ordinance, or to fail to obey a device erected or maintained by lawful authority of a public body or official.