1.Umaokoshi  Passage (34 57.3N, 136 39.2E)
When a meeting situation is anticipated between a vessel proceeding in Passage 1 and a vessel proceeding in Umaokoshi Passage, the vessel proceeding in Umaokoshi Passage must keep out of the way of the vessel proceeding in Passage 1.

2.Note
Vessels navigating within Passage 1 and Umaokoshi Passage are subject to port control as indicated by traffic signals made by the Captain of the port. Consult Pub. No. 301, South and East Coasts of Honshu.
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