CFR›Title 29›Subtitle B›Chapter XVII›Part 1926›Subpart S ContainsSections 1926.800–1926.804; Appendix ACorpusDaily eCFRDisplayed edition2026-04-23Last updated2026-04-23 Subpart S—Underground Construction, Caissons, Cofferdams and Compressed Air Contents 1926.800 § 1926.800 Underground construction. 1926.801 § 1926.801 Caissons. 1926.802 § 1926.802 Cofferdams. 1926.803 § 1926.803 Compressed air. 1926.804 § 1926.804 Definitions applicable to this subpart. Appendix A to Subpart S of Part 1926 Appendix A to Subpart S of Part 1926—Decompression Tables Authority40 U.S.C. 3701; 29 U.S.C. 653, 655, 657; and Secretary of Labor's Orders 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 FR 35736), 1-90 (55 FR 9033), 6-96 (62 FR 111), 5-2007 (72 FR 31159), or 1-2012 (77 FR 3912), as applicable. Previous R Subpart R—Steel Erection Next T Subpart T—Demolition