Reference

ASTM F2413-18 defines the marking stamped inside every rated boot, and reading that multi-line code is the difference between compliant footwear and a failed audit. The standard superseded the older ANSI Z41. This guide decodes the marking, every supplemental code (EH, PR, MT, SD), and a worked example for an electrician.

Steel toe and composite toe boots meet the same ASTM F2413 protection level when rated, so the real decision is the cap's secondary properties: weight, conductivity, metal-detector behavior, electrical-hazard pairing, and cost. This guide decodes every difference under OSHA 1910.136 and walks a worked example of choosing a toe type by job.