A county or city may make and enforce within its limits all local, police, sanitary, and other ordinances and regulations not in conflict with general laws.
Cal. Const. art. XI, § 7, under LOCAL GOVERNMENT.
Cal. Const. art. XI, § 7
Section 7
A county or city may make and enforce within its limits all local, police, sanitary, and other ordinances and regulations not in conflict with general laws.