In case your boat is registered in A different point out, you are exempt for the 1st 60 times you're on Washington waters. On or before the 61st working day of use on Washington state waters, you (or the proprietor) ought to acquire a nonresident boat non permanent license plate https://sanmarinoyachtregistratio33197.wikilinksnews.com/5349018/san_marino_yacht_registration_for_dummies