This 'Boat License' topic seems to have concentrated on what I would call skipper's license. Looking into this I can see no way of also needing a Certificado de Navigabilidad or a seaworthy certificate for the boat. For sub 6 mtere boats this is only required once i.e. no renewels fort e life of the boat. The list of equipment to be carried does not seem to be too daunting.

Can anyone comment on this requirement. I have no experience in this area as I had to commercially codify my boat.