CFR›Title 30›Chapter I›Part 57›Subpart F›Subject Group Rotary Jet Piercing—Surface Only ContainsSections 57.7801–57.7807CorpusDaily eCFRDisplayed edition2026-07-15Last updated2026-07-15 Sections 57.7801 § 57.7801 Jet drills. 57.7802 § 57.7802 Oxygen hose lines. 57.7803 § 57.7803 Lighting the burner. 57.7804 § 57.7804 Refueling. 57.7805 § 57.7805 Smoking and open flames. 57.7806 § 57.7806 Oxygen intake coupling. 57.7807 § 57.7807 Flushing the combustion chamber. Previous Drilling—Underground Only Drilling—Underground Only