INTERNATIONAL RULES: I. ENACTING CLAUSE, SCOPE, AND PENALTY:
Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That the following regulations for preventing collisions at sea shall be followed by all public and private vessels of the United States upon the high seas and in all waters connected therewith, navigable by seagoing vessels.
Article 30. Nothing in these rules shall interfere with the operation of a special rule, duly made by local authority, relative to the navigation of any harbor, river, or inland waters.
PRELIMINARY DEFINITIONS
In the following rules every steam vessel which is under sail and not under steam is to be considered a sailing vessel, and every vessel under steam, whether under sail or not, is to be considered a steam vessel.
The words "steam vessel" shall include any vessel propelled by machinery.
A vessel is "under way," within the meaning of these rules, when she is not at anchor, or made fast to the shore, or aground.