Echoing what others have said, I suggest going with USCG documentation
. If you stay in any single
jurisdiction more than their allotted time (usually 60-90 days), they may expect you to register it there. I suggest carrying with you proof (e.g. dockage or fuel
receipts) showing that you were in another state within the last N days.
I don't want to think about the potential headache if you were to try to cruise
inland US with a foreign flagged vessel. USCG is easy and relatively inexpensive ($133 initially, $26/yr).
presents an interesting issue, as some officials have asked me about the registration of our tender
. I talked myself out of the situation explaining that it was tender to a US documented vessel, but since I was unsure that would get me off in the future I opted to register our new dinghy
in RI. The cost is only $32 every 2 years (on the tender), with no sales tax. (I do have a RI harbor listed as our hailing port.) It had the added advantage that it helped in recovery of our dinghy
when it was claimed by someone else -- the HullID is on file with the state.