The owner shall post a copy of the building's certificate of occupancy in accordance with this section 28-118.19, except buildings occupied entirely by group R3. Buildings that are not required to have a certificate of occupancy shall be posted by the owner with a sign or placard in a form prescribed by the commissioner. The certificate of occupancy or sign, as applicable, shall be permanently affixed to the structure in a conspicuous location in a public hall, corridor, management office of the building or as otherwise prescribed by the commissioner.
All posted certificates of occupancy or signs, as applicable, shall not be removed or defaced and, if lost, removed or defaced, shall be immediately replaced. The commissioner may inspect or cause to be inspected periodically all buildings for compliance with the provisions of this code in regard to posting; and the inspection reports shall specify any violation thereof.