Whenever a fire occurs in any building, or on any premises, vessel or aircraft, or in any vehicle, apparatus, process, or equipment, it shall be the duty of the owner, manager, operator, or person in control, upon notification or discovery of such fire and/or smoke, to immediately notify the Department and furnish all required information relative to the incident. This requirement shall not be construed to forbid the owner, manager, operator, or person in control of the building, premises, vessel, aircraft, vehicle, apparatus, process, or equipment from using all diligence necessary to extinguish such fire prior to the arrival of the Department.