"And I do believe that these requirements apply to ALL vessels sailing in Portuguese waters. "
The first url indicates the Portuguese Navy
are being rather reasonable about it: Vessels in transit do not need to comply, as per theusual international understandings they follow their flags
. Vessels sojourning, taking out mooring
contracts, owned by someone buying
land and thus subject to 'resident' status...again, international standards say that if you are "residing"...you may even be required to reflag the vessel.
Heck, there are some US states where you only need to park your butt in-state for 30 days to be considered a resident and citizen of that state.
Not unreasonable at all, from what he says.