On Oct 31, 4:16?pm, "Ernest Scribbler"
wrote:
What am I required to carry here on an inland waterway in the US? I was
boarded by the Coast Guard last year, and the guy wanted to see a photo ID,
among other things. I had my wallet with me that day (which hasn't always
been the case) so I showed him my driver's license. Where would I find the
law on this sort of thing? State? Federal? Both?

The USCG is regulated by the Department of Homeland Security. Federal.

Interesting that they asked for a photo ID. One of the reasons that
the USCG commandant suggested that a national boater ID would be
useful is a USCG contention that they are prohibited from asking for
ID.