No person may operate any vehicle for the collection of solid waste or recyclable materials other than a collector who has a valid business license and who has paid all required license, permit or other city charges or payments and who, except where a collection agreement is expressly not required by this chapter, has entered into a collection agreement with the city. Each vehicle used by the collector shall have an identification number printed or painted in legible numbers not less than five inches in height in plain sight on all four sides of the vehicle. (Ord. 716 § 2, 2021; Ord. 532 § 1. 2002 Code § 12-5.1).