No use for which a permit or approval was issued shall be occupied or maintained except pursuant to a certificate of compliance issued by the Director. The Director, within 10 working days after receipt of a request for inspection of a project or operation of a use for which a permit or approval has been issued, shall inspect and issue a certificate of compliance if the project has been completed or the use is being operated in compliance with all terms of the permit or approval and with all applicable provisions of this code and other laws and regulations. Such certificate shall constitute a permit to occupy and/or conduct the use. If the project involves the construction of a building or structure, a building permit and associated certificate of occupancy must also be issued before the building or structure can be occupied.