NOTE B
The U.S Coast Guard operates a mandatory Vessel Traffic Services (VTS) system in the U.S waters covered by this chart. Vessel operating procedures and designated radio-telephone frequencies are published in 33 CFR 161, the U.S. Coast Pilot, and/or in the VTS User's Manual.


NOTE C
A Cooperative Vessel Traffic Services (CVTS) system has been established by the United States and Canada within the adjoining waters in the Juan de Fuca Region. The appropriate Vessel Traffic Center (VTC) (Prince Rupert Traffic, Seattle Traffic, and Victoria Traffic) administers the rules issued by both nations, however, it will enforce only its own set of rules within its jurisdiction.