(a) Except as may be provided elsewhere in this Part the inspections required by section 1202.4 of this Part will be performed by employees or agents of the Department of State. Such inspectors are authorized to order in writing:

(b) Orders to correct violations of the Uniform Code or this Part shall be served in person upon a responsible party or his authorized agent or by registered mail sent to the address of such responsible party. Stop work orders and not be occupied orders shall be served in person upon a responsible party or his authorized agent, or by certified or registered mail sent to the address of the responsible party, or by posting such order in a conspicuous spot upon the building or structure which is the subject of such order. If an address for a responsible party has been set forth in any relevant application for a permit or in any relevant certificate, that address is the one which shall be used for service of an order when the order is served by mail. A responsible party who fails to comply with any order issued by the department shall be subject to a penalty as provided by law.

(c) When a stop work order has been issued in connection with a particular project, no work shall proceed on that project until the stop work order has been rescinded or unless the specific work to be undertaken has been approved in writing by an employee of the Department of State. When a not to be occupied order has been issued by the department, except for the purpose of inspecting or securing the building or structure, no building or structure which is the subject of such an order shall be occupied until such order is rescinded or unless the occupancy is specifically approved in writing by an employee of the Department of State.