§ 47.373. Application.
(a) Safety devices. In buildings having windows with sills 12 or more feet above the grade or adjoining flat roof, and so constructed that it is necessary to clean the windows from the outside, approved safety devices for the protection of the window cleaner shall be provided. When windows are cleaned on the inside from sills located more than 12 feet above the floor or working platform, or when windows are of such size that they cannot be cleaned from the sills, approved devices such as ladders or scaffolds built or erected in accordance with this subchapter shall be used.
(b) Sills. In buildings, where the window sill extends less than 6 inches out from the window frame, an approved portable auxiliary sill or other approved device shall be provided. Portable sills shall not be less than 10 inches wide nor less than 30 inches long. Portable sills or other devices shall be so designed and constructed that are safely held in place and readily put into position and removed.
(c) Alterations. When windows are so constructed and it is usual or practicable to clean them from the inside, alterations, changes and obstructions which make it necessary to clean such windows from the outside, shall not be made unless provision is also made for safety devices.
(d) Windows at balconies. This subchapter shall not apply to a window opening to fire escape balcony or other balcony more than 2 feet wide and not more than 12 inches below the window sill.
(e) New construction. In buildings erected after November 15, 1932, approved anchors for window cleaners shall be installed at the time of erection and shall be indicated on the plans of the buildings except for the following:
(1) When casement windows are provided which may be cleaned from inside the building.
(2) When windows are so designed as to necessitate cleaning from the outside of the building by scaffolds.
(f) Existing construction. In all existing buildings which lack anchors for window cleaners, approved anchors shall be installed, or the windows shall be cleaned from scaffolds or ladders which are in accordance with the regulations of the Department.
(g) Anchors. Anchors for window cleaners installed before November 15, 1932, may remain if acceptable to the Department.
(h) Belts. Belts for window cleaners in use before November 15, 1932, may continue to be used if the Department determines them to be in a safe condition. Belts procured after such date shall be in accordance with this subchapter.
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