Tower climbers must only climb towers certified by the manufacturer to meet the specifications of the Telecommunications Industry Association's TIA 222-H, Structural Standard for Antenna Supporting Structures, Antennas and Small Wind Turbine Support Structures, for towers. Tower climbers must only climb towers certified by the manufacturer to meet the specifications of the Telecommunications Industry Association's TIA 222-H, Structural Standard for Antenna Supporting Structures, Antennas and Small Wind Turbine Support Structures, for towers. Pursuant to the OSH Act, employers must comply with safety and health standards and regulations issued and enforced either by OSHA or by an OSHA-approved state plan. In addition, the Act's General Duty Clause, Section 5(a) (1), requires employers to provide their employees with a workplace free. This standard establishes minimum criteria for safe work practices and training for personnel performing work on communication structures including antenna and antenna supporting structures, broad-cast and other similar structures supporting communication related equipment. ASSE Tech Brief (October. The core safety mandate for tower climbing is continuous fall protection, often called 100% tie-off. Employees performing maintenance or telecommunications work must be protected from falls at four. ANSI/ASSP A10. General Requirements Each region must designate a.