California Code
ARTICLE 1 - General Provisions
Section 5229.

5229. The provisions of this chapter shall not be construed to permit a person to place or maintain in existence on or adjacent to any street, road or highway, including any interstate or state highway, any outdoor advertising prohibited by law or by any ordinance of any city, county or city and county.

(Repealed and added by Stats. 1970, Ch. 991.)