“Is this mount man-rated?” is one of the most common questions in tower work and one of the most misunderstood. The intent is sound, but the term blends several separate engineering and safety concepts into one phrase that no current regulation or standard actually uses.
This Planning Advisory Notice explains how three standards fit together:
- ANSI/ASSP Z359: fall-protection anchorage requirements, including the 5,000-pound-per-worker anchorage threshold
- ANSI/TIA-222: maintenance loads (LV and LM), which are simulated design forces used in structural analysis and are not fall-arrest capacities
- ANSI/ASSP A10.48: the construction planning framework that ties it all together, with ANSI/TIA-322 and TIA-5053 supporting engineering review
The PAN also outlines responsibilities for owners, engineers, manufacturers and general contractors, and gives four questions every contractor should ask before replacing equipment or modifying a mount.
The takeaway: safe work isn’t decided by a label on a mount. It comes from proper planning, competent persons, and clear communication across every stakeholder.
Authors: Scott Stekr, P.E. (PerfectVision), Michelle Kang, P.E. (Colliers Engineering & Design), Brian Bicknese (NATE), and Scott Kisting (PTS Advisors)
