Join Date: Apr 2006
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As others have said, in the US, IT ALL DEPENDS ON STATE LAW. Documentation and documentation laws have nothing to do with state registration requirements and state motor vehicle laws. Anything you've got with a motor on it, is a motor vehicle and subject to state motor vehicle laws in almost all states.
In Florida, your dink would require registration. In some other states--it would not. Overseas, again, everything changes with where you are but as long as you are a transient and visitor, you will only be expected to meet the laws of your home flag.
Check your home state laws--and comply with them. And remember that if you are in some other state for as little as 30 days--the laws of THAT state may take precedence. (i.e. if your home state doesn't require dink registration, but you summer in Florida--you'll have to register the dink regardless.)