Streets and Highways Code § 2562.5

Each tow truck participating in a freeway service patrol shall bear a logo comprised of, at a minimum, a circle, a triangle, and a tow truck silhouette, with the words “Freeway Service Patrol,” which identifies the Department of the California Highway Patrol and the department, and, at the option of the entity, the participating regional or local entity. Participating regional or local entities may place an approved logo on participating tow trucks.