Article 4. Parking Lamps of California Vehicle Code >> Division 12. >> Chapter 2. >> Article 4.

No vehicle shall be driven at any time with the parking lamps lighted except when the lamps are being used as turn signal lamps or when the headlamps are also lighted.
Parking lamps are those lamps permitted by Section 25106, or any lamps mounted on the front of a vehicle, designed to be displayed primarily when the vehicle is parked.
No lights need be displayed upon a vehicle which is:
  (a) Parked off the roadway and not in a hazardous position on the highway; or
  (b) Parked with a wheel within 18 inches of a curb; or
  (c) Parked within a business or residence district with a wheel within 18 inches of a curb or edge of the roadway.