Each waste container that has a capacity of 2 cubic yards or more must be labeled with:the name of the licensee; and an identification number assigned by the Commissioner. The label must be:on the outside of the container; and in permanent lettering that is:plainly distinguishable; and at least 3 inches high. City Code, 1976/83, art. 11, §269(d), (h) Ord. 99-548