33 CFR § 401.63 - Radio procedures.

Every vessel shall use the channels of communication in each control sector as listed in the table to this section.

Channels of Communication

Station	Control sector number	Sector limits	Call in	Work	Listening watch
Seaway Beauharnois	1	C.I.P No. 2 to C.I.P No. 6–7	Ch. 14	Ch. 14	Ch. 14.
Seaway Eisenhower	2	C.I.P. No. 6–7 to C.I.P. No. 10–11	Ch. 12	Ch. 12	Ch. 12.
Seaway Iroquois	3	C.I.P. No. 10–11 To Crossover Island	Ch. 11	Ch. 11	Ch. 11.
Seaway Clayton	4	Crossover Island to Cape Vincent	Ch. 13	Ch. 13	Ch. 13.
Seaway Sodus	4	Cape Vincent to Mid Lake Ontario	Ch. 12	Ch. 12	Ch. 16.
Seaway Newcastle	5	Mid Lake Ontario To C.I.P. No. 15	Ch. 11	Ch. 11	Ch. 16.
Seaway Welland	6	C.I.P. No. 15 to C.I.P. No. 16	Ch. 14	Ch. 14	Ch. 14.
Seaway Long Point	7	C.I.P. No. 16 to Long Point	Ch. 11	Ch. 11	Ch. 16.

[75 FR 10690, Mar. 9, 2010]