California Code, Business and Professions Code - BPC § 7502.5

The provisions of this chapter do not prevent the local authorities in any city, county, or city and county, by ordinance and within the exercise of the police power of the city, county, or city and county from requiring repossession agency licensees or registrants to register their names and a file copy of their state identification cards with the city, county, or city and county. No fee may be charged nor may any application be required by the city, county, or city and county for the registration.