All persons registered pursuant to this chapter for the privilege of doing business as contractors, and all persons who engage in doing business as contractors, shall maintain records of all services performed by them as contractors within the corporate limits of the city. The records shall disclose the person for whom the services are performed and the contract price or charge made for the services and such other information as the city council may, by regulation, require. The persons shall maintain such records at their office or principal place of business and shall permit officials or agents of the city to inspect said records for the purpose of determining whether or not said persons have complied with the requirements of this chapter. (Ord. 91-5-22-11, 5-22-1991, eff. 5-22-1991)