Columbia subject headings:
Coastwise shipping--Canada.
Inland water transportation--Law and legislation--Canada.
Inland water transportation--Law and legislation--United States.
Maritime law.
Harvard subject headings:
Coastwise shipping--Canada.
Inland water transportation--Law and legislation--Canada.
Inland water transportation--Law and legislation--United States
Maritime law
Maritime law--Canada.
Maritime law--United States
Princeton subject headings: