CFR›Title 40›Chapter I›Part 139›Subpart A ContainsSections 139.1–139.3CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart A—Scope Sections 139.1 § 139.1 Coverage. 139.2 § 139.2 Definitions. 139.3 § 139.3 Other Federal laws. Next Appendix A to Part 139 Appendix A to Part 139—Federally-Protected Waters