[PSUBS-MAILIST] PSUBS launches SUBNOTE

[Daniel Lance via Personal_Submersibles]

If a body of water ( take for example Lake Tahoe ) has a federal presence
located on then it also comes under U.S. Coast Guard jurisdiction.

On Sat, Feb 21, 2026, 9:31 AM Jon Wallace via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Alec,
>
> According to AI, any navigable water is subject to USCG jurisdiction.
> Navigable means "It must function (or be capable of functioning) as part of
> a commercial transportation system between states or with foreign nations."
>
> So that would include all coastal waters, the Intra-Coastal waterway on
> the east coast, and large lakes that span multiple states such as the Great
> Lakes, Lake Mead, Lake Tahoe, etc.  Small local lakes situated entirely
> within a single state is typically not "navigable" or under Coast Guard
> control.
>
> Jon
>
>
>
> On Saturday, February 21, 2026 at 09:17:23 AM EST, Alec Smyth via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
> Jon, that's super useful, thanks. I have a very basic question. D'you know
> the criteria for when bodies of water in the US are subject to CG
> jurisdiction?
>
>
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