CFR›Title 49›Subtitle B›Chapter II›Part 230›Subpart B›Subject Group Washing Boilers ContainsSections 230.60–230.61CorpusDaily eCFRDisplayed edition2026-05-07Last updated2026-05-07 Sections 230.60 § 230.60 Time of washing. 230.61 § 230.61 Arch tubes, water bar tubes, circulators and thermic siphons. Previous Strength of Materials Strength of Materials Next Water Glasses and Gauge Cocks Water Glasses and Gauge Cocks