California Code, Streets and Highways Code - SHC § 8311

(a) The procedures provided in this part are alternative procedures for vacating streets, highways, and public service easements. The authority granted in this part is an alternative to any other authority provided by law to public entities.

(b) The provisions of this part shall not apply to or affect any other provision of this code. If proceedings are commenced under this part, the provisions of this part, and no other provisions of this code, shall apply to the proceedings.