a) the purchaser's birth certificate or equivalent proof; b) title deed or, in the case of construction, the respective license and proof of payment of the price, with the exception of the payment of the guarantee; c) proof of discharge from tax and social charges; d) tonnage certificate; and e) drawings, specifications and descriptive memorial.

fishing vessel owner: a natural or legal person who, registered and licensed by the competent authorities, provides, in their name or under their responsibility or under their responsibility, a vessel to be to be used in fishing activities, whether or not they or not operating on their behalf;