Decree-Law No. 295/94 establishing International Maritime Organisation marking standards for vessel identification. Country/Territory Portugal Document type Legislation Date 1994 Source FAO, FAOLEX Original source Diário da República No. 265/94, 16 November 1994, pp. 6856 and 6857. Subject Sea Keyword Navigation International organization Registration Geographical area Europe, Europe and Central Asia, European Union Countries, North Atlantic, North-East Atlantic, Southern Europe Abstract This Decree-Law establishes IMO marking standards for vessel identification. These shall accompany a vessel during its entire existence. The IMO identification number is formed by a prefix followed by a number of 7 digits. IMO identification number are Lloyd's Register numbers attributed by the General Direction of Harbours, Navigation and Maritime Transport (DGPNTM). Such identification number is obligatory for vessels exceeding gross tonnage of 100 tons and making international journeys. Full text Portuguese