The state fire safety code board has the power to adopt, promulgate, amend, and repeal the fire safety code elements of the rehabilitation building and fire code for existing buildings and structures, which shall be administered as a sub-code of the fire safety code. Any existing building or structure, subject to the provisions of the rehabilitation building and fire code for existing buildings and structures, shall also comply with the existing occupancy provisions of the Rhode Island Fire Safety Code addressing the current or proposed occupancy.
R.I. Gen. Laws § 23-28.3-3.1