CFR›Title 42›Chapter I›Part 31›Subject Group Definitions ContainsSection 31.1CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Sections 31.1 § 31.1 Meaning of terms. Next Provisions Applicable to Coast Guard, National Ocean Survey and Public Health Service Provisions Applicable to Coast Guard, National Ocean Survey and Public Health Service