CFR›Title 30›Chapter I›Part 56›Subpart F ContainsSubject groups Drilling–Rotary Jet PiercingCorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart F—Drilling and Rotary Jet Piercing Subject Groups Drilling Drilling Sections 56.7002–56.7056 Rotary Jet Piercing Rotary Jet Piercing Sections 56.7801–56.7807 Previous E Subpart E—Explosives Next H Subpart H—Loading, Hauling, and Dumping