VEH §22651.05: (a) A trained volunteer of a state or local law enforcement agency, who is engaged in directing traffic or enforcing parking laws and regulations, of a city, county, or jurisdiction of a state agency

(a) A trained volunteer of a state or local law enforcement agency, who is engaged in directing traffic or enforcing parking laws and regulations, of a city, county, or jurisdiction of a state agency in which a vehicle is located, may remove or authorize the removal of a vehicle located within the territorial limits in which an officer or employee of that agency may act, under any of the following circumstances: (1) When a vehicle is parked or left standing upon a highway for 72 or more consecutive hours in violation of a local ordinance authorizing the removal. (2) When a vehicle is illegally parked or left standing on a highway in violation of a local ordinance forbidding standing or parking and the use of a highway, or a portion thereof, is necessary for the cleaning, repair, or construction of the highway, or for the installation of underground utilities, and signs giving notice that the vehicle may be removed are erected or placed at least 24 hours prior to the removal by local authorities pursuant to the ordinance. (3) Wherever the use of the highway, or a portion thereof, is authorized by local authorities for a purpose other than the normal flow of traffic or for the movement of equipment, articles, or structures of unusual size, and the parking of a vehicle would prohibit or interfere with that use or movement, and signs giving notice that the vehicle may be removed are erected or placed at least 24 hours prior to the removal by local authorities pursuant to the ordinance. (4) Whenever a vehicle is parked or left standing where local authorities, by resolution or ordinance, have prohibited parking and have authorized the removal of vehicles. A vehicle may not be removed unless signs are posted giving notice of the removal. (5) Whenever a vehicle is parked for more than 24 hours on a portion of highway that is located within the boundaries of a common interest development, as defined in Section 4100 or 6534 of the Civil Code, and signs, as required by Section 22658.2, have been posted on that portion of highway providing notice to drivers that vehicles parked thereon for more than 24 hours will be removed at the owner’s expense, pursuant to a resolution or ordinance adopted by the local authority. (b) The provisions of this chapter that apply to a vehicle removed pursuant to Section 22651 apply to a vehicle removed pursuant to subdivision (a). (c) For purposes of subdivision (a), a “trained volunteer” is a person who, of his or her own free will, provides services, without any financial gain, to a local or state law enforcement agency, and who is duly trained and certified to remove a vehicle by a local or state law enforcement agency.