NFPA Life Safety Code 101 22.214.171.124.2
The authority having juristiction shall be permitted to approve any existing fire escape stair that has been shown by load test or other satisfactory evidence to have adequate strength.
International Fire Code Testing and Certification
All Exit discharge, exterior stairways and fire escapes shall be kept free of snow and ice. Any fire escape or exterior stairway found to be in a state of deterioration or determined to be unsafe by the fire official shall be repaired immediately. Depending upon the structural condition, a load test of any fire escape shall be conducted before the escape is returned to service.
International Building Code Testing and Certification
All exterior bridges, steel or wooden stairways, fire escapes and egress balconies shall be examined and or tested, and certified for structural adequacy and safety every five years, by a Mass registered professional engineer or other qualified and acceptable to the building official, who shall then submit an affidavit to the building official.
OBSTRUCTIONS: It shall be unlawful to obstruct, or reduce in any manner, the clear width of any doorway, hallway, passageway or other means of egress required by the provisions of this regulation.
MAINTENANCE: All exterior stairways and fire escapes shall be kept free of snow and ice. Exterior stairways and fire escapes constructed of materials requiring the application of weather protecting products, shall have these products applied in an approved manner and shall be applied as often as necessary to maintain the stairways and fire escapes in safe condition where corrodible structural parts of such stairways and fire escapes tie directly into the building structural system, all joints shall be sealed as necessary, to prevent water from damaging or corroding structural elements.
TESTING AND CERTIFICATION: All exterior bridges, steel or wooden stairways, fire escapes and egress balconies shall be OPERATIONAL AT ALL TIMES and or be examined and/or tested and certified for structural adequacy and safety every one to five years (depending on local or state laws) by a State registered professional structural engineer, or others qualified and acceptable to the building official; said engineer or others shall then submit an affidavit to the building official.