NAVIGABLE WATERS OF THE UNITED STATES BY DEFINITION UNDER 33 CFR 2.36(A)(1) OR (2): These waters include the territorial seas of the United States and all internal waters of the United States that are subject to tidal influence......
.......and/or are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.
When guiding in the Tikchik Lakes region of Southwest Alaska, all guides that worked the Nushagak River were required to have a current license (6-Pack).
We all took a two day course in Anchorage and were issued our license but were told it wasn't necessary for those strictly working inland waters..
As the description states.
Everything I read other than the description for 'navigable waters' is contrary to what we were told.
