33 CFR 401.89 - Transit refused.
(a) An officer may refuse to allow a vessel to transit when,
(1) The vessel is not equipped in accordance with §§ 401.5 to 401.19 and subsections (e) to (j) of Schedule I of subpart A of this part when transiting the Canadian waters of the Seaway;
(2) The vessel, its cargo, equipment or machinery are in a condition that will prevent safe or expeditious transit by that vessel; or
(3) The vessel is manned with a crew that is incompetent or inadequate.
(4) The vessel is not in compliance with flag state and/or classification society regulations.