Under 1910.156(e)(3)(ii), which publication is incorporated by reference for protective clothing for structural firefighting?
Under 1910.156(e)(3)(ii) the incorporated publication is NFPA No. 1971 (1975), titled "Protective Clothing for Structural Fire Fighting." This publication is listed as the principal source for the criteria and test methods used to determine whether protective clothing provides the level of protection required for interior structural firefighting; see 1910.156(e)(3)(ii) and 1910 Subpart L Appendix D.