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1109.9.5 Detectable Warnings at Other Locations
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Detectable warnings shall be located at hazardous locations on floors, doors, and stairs. Doors that lead to areas that might prove hazardous to a person who is blind, including, but not limited to, doors to leading platforms, boiler rooms, and stages, shall be made identifiable to the touch by a textured surface on the door handle, knob, pull or other operating hardware. This textured surface may be made by knurling or roughening or by material applied to the contact surface. Such textured surfaces shall not be provided for emergency exit doors or any doors other than those to hazardous areas.