OSHA FY2025 all-industry rank,29 CFR standard,Topic,All-industry federal citations FY2025,All-industry share (%),Rank at plumbing and HVAC contractors FY2021 to FY2025,Plumbing and HVAC federal citations FY2021 to FY2025,Plumbing and HVAC share (%) 1,1926.501,Duty to have fall protection (construction),6580,13.69,2,287,11.5 2,1910.1200,Hazard communication,2707,5.63,5,111,4.5 3,1926.1053,Ladders (construction),2731,5.68,4,171,6.9 4,1910.147,"Lockout/tagout, control of hazardous energy (general industry)",2311,4.81,12,51,2.1 5,1910.134,Respiratory protection,2162,4.5,14,48,1.9 6,1926.451,"Scaffolds, general requirements (construction)",2327,4.84,13,50,2.0 7,1926.503,Fall protection training (construction),2098,4.36,9,73,2.9 8,1910.178,Powered industrial trucks (general industry),1979,4.12,16,36,1.4 9,1926.102,Eye and face protection (construction),1856,3.86,20,30,1.2 10,1910.212,Machine guarding (general industry),1440,3.0,36,14,0.6