California Code, Streets and Highways Code - SHC § 635

(a) State Highway Route 1 from Las Cruces to San Francisco shall be known and designated as the “Cabrillo Highway.”

(b) State highway routes embracing portions of Routes 280, 82, 238, 101, 5, 72, 12, 37, 121, 87, 162, 185, 92, and 123 and connecting city streets and county roads thereto, and extending in a continuous route from Sonoma southerly to the international border and near the route historically known as El Camino Real shall be known and designated as “El Camino Real.”

(c) State Highway Route 1 from south of San Juan Capistrano to near El Rio shall be known and designated as the “Pacific Coast Highway.”