This Standard establishes safety requirements for powered platforms (scaffolds) for buildings where window cleaning and related services are accomplished by means of suspended equipment at heights in excess of 35 ft (11 m) above a safe surface (e. g. , grade, street, floor, or roof level). Additionally, this standard establishes safety requirements for permanent traveling ladders and gantries (TLG).
ANSI/ASME A120.1-2008 history
2014ANSI/ASME A120.1-2014 Safety Requirements for Powered Platforms and Traveling Ladders and Gantries for Building Maintenance
2008ANSI/ASME A120.1-2008 Safety Requirements for Powered Platforms and Traveling Ladders and Gantries for Building Maintenance
2001ANSI/ASME A120.1-2001 Safety Requirements for Powered Platforms for Building Maintenance