(a) A sign or sticker shall be affixed at the main point of entry to the Apartment House, or at such other location that the Fire Marshal approves in writing, that contains the phone number of the owner, property manager, or other person who can give the Fire Department or other building inspector prompt access to the building to conduct safety inspections.
(b) The Department of Building Inspection shall enforce this Section 409.3 pursuant to periodic health and safety inspections required by code.