35 Pa. Stat. § 1221
Every building enumerated in this act, erected or adapted for any of the purposes of the several classes of buildings covered by this act, shall be so constructed, equipped, operated, and maintained, with respect to type of construction and materials used, fireproofing, number and type of ways of egress, aisles and passageways, stairs and fire escapes, wall openings, exits and exit signs, doors and doorways, shaftways and other vertical openings, emergency lighting, automatic sprinkler systems, fire alarm systems, fire drills, electrical equipment, inflammable and explosive materials, heating apparatus and fuel storage, number of occupants, ventilation, arrangement of seating and standing space, construction and equipment of stages, projection rooms, and dressing rooms, and all other fire and panic protection as to provide for the safety and health of all persons employed, accommodated, housed, or assembled therein. Whenever any building designated in this act shall, in the opinion of the Department of Labor and Industry, become dangerous to further occupancy because of structural or other defects, it shall immediately be closed to further occupancy, and a sign posted thereon to that effect. Such building shall not again be occupied until all recommendations of the department to eliminate hazardous conditions are complied with.
The Department of Labor and Industry shall have the power, and its duty shall be, to make, alter, amend, or repeal rules and regulations for carrying into effect all of the provisions of this act, applying such provisions to specific conditions, and prescribing means, methods and practices to make effective such provisions.
35 P.S. § 1221