46 CFR 7.1 : Shipping (§ 1.01-05 To Subchapter D) — (§ 1.01-05 To Part 40) — Coast Guard, Department Of Homeland Security (§ 1.01-05 To Part 40) — Procedures Applicable To The Public (§ 1.01-05 To § 9.17) — Boundary Lines (§ 7.1 To § 7.180) — General (§ 7.1 And § 7.5) — General purpose of boundary lines.

The lines in this part delineate the application of the following U.S. statutes: 33 U.S.C. 152 relating to the length of towing hawsers; 33 U.S.C. 1201 et seq., the Vessel Bridge-to-Bridge Radiotelephone Act; 46 U.S.C. 5102(b)(6), which exempt from load line requirements certain vessels on domestic voyages; 46 U.S.C. 3301(6) requiring the inspection of seagoing barges which are defined in 46 U.S.C. 2101(32); 46 U.S.C. 3301(7) requiring the inspection of seagoing motor vessels which are defined in 46 U.S.C. 2101(33); 46 U.S.C. 3302(d) which exempts from inspection requirements certain vessels under 150 gross tons that operate within the waters of southeastern Alaska and the State of Washington; and 46 U.S.C. 8304, “Implementing the Officers' Competency Certificates Convention, 1936.”