California Code, Vehicle Code - VEH § 22507.5

(a) Notwithstanding Section 22507, local authorities may, by ordinance or resolution, prohibit or restrict the parking or standing of vehicles on certain streets or highways, or portions thereof, between the hours of 2 a.m. and 6 a.m., and may, by ordinance or resolution, prohibit or restrict the parking or standing, on any street, or portion thereof, in a residential district, of commercial vehicles having a manufacturer's gross vehicle weight rating of 10,000 pounds or more.  The ordinance or resolution relating to parking between the hours of 2 a.m. and 6 a.m. may provide for a system of permits for the purpose of exempting from the prohibition or restriction of the ordinance or resolution, disabled persons, residents, and guests of residents of residential areas, including, but not limited to, high-density and multiple-family dwelling areas, lacking adequate offstreet parking facilities.  The ordinance or resolution relating to the parking or standing of commercial vehicles in a residential district, however, shall not be effective with respect to any commercial vehicle, or trailer component thereof, making pickups or deliveries of goods, wares, and merchandise from or to any building or structure located on the restricted streets or highways or for the purpose of delivering materials to be used in the actual and bona fide repair, alteration, remodeling, or construction of any building or structure upon the restricted streets or highways for which a building permit has previously been obtained.

(b) Subdivision (a) of this section is applicable to vehicles specified in subdivision (a) of Section 31303, except that an ordinance or resolution adopted pursuant to subdivision (a) of this section shall not permit the parking of those vehicles which is otherwise prohibited under this code.

(c) For the purpose of implementing this section, each local authority may, by ordinance, define the term “residential district” in accordance with its zoning ordinance.  The ordinance is not effective unless the legislative body of the local authority holds a public hearing on the proposed ordinance prior to its adoption, with notice of the public hearing given in accordance with Section 65090 of the Government Code.