46 U.S.C. § 58107 — Discrimination at ports by water common carriers

(a) Prohibition. A common carrier by water may not, directly or indirectly — through an agreement, conference, association, understanding, or any other means — prevent or try to prevent another common carrier by water from serving a port described in subsection (b), if that other carrier charges the same rate it charges at the nearest port it already regularly serves. (b) Ports. A port covered by subsection (a) is one that is: (1) built to handle ocean-going vessels; (2) part of an improvement project authorized by law or a federal agency; and (3) located within the continental United States. (c) Other Authority Not Limited. This section does not limit any other authority already given to the Secretary of Transportation and the Federal Maritime Commission.