tanker
as defined in Regulation (EU) No 1257/2013 of the European Parliament and of the Council of…, Article 3(1), point (3) (Definitions)
an oil tanker as defined in Annex I to the Convention for the Prevention of Pollution from Ships (‘MARPOL Convention’) or a Noxious Liquid Substances (NLS) tanker as defined in Annex II to that Convention