Reference

Exit signage is one of the few places where general industry and construction genuinely diverge on the specification of the same object, and the divergence runs the opposite way to what most people expect. This guide sets 1910.37(b) and 1926.200(d) side by side, adds the NFPA 101 compliance route, and walks a mixed-site audit.

OSHA sets safety sign rules in two separate places, and the ANSI editions it incorporates run two to three revisions behind what vendors sell as current. This guide decodes the three sign classes at 1910.145(c), the specified colors, accident prevention tags, and the construction table at 1926.200, plus exit and aisle marking duties.