construction

roofing

framing

29 CFR 1926.100(a)

29 CFR 1926.102(1)

29 CFR 1926.502(d)(17)

29 CFR 1926.503(a)(1)

29 CFR 1926.1053(b)(5)(i)

29 CFR 1926.1052(b)(1)

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