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Marine Pollution Act 2012 No 5
Current version for 6 January 2017 to date (accessed 23 February 2020 at 22:58)
23 Defence for certain ships 400 tonnes or more and oil tankers within special areas
(Regs 15.3 and 15.8 of Annex I of MARPOL)
Division 1 does not apply to the discharge of oil from a ship if:(a) the ship has a gross tonnage of equal to or greater than 400, and(b) the ship is within a special area, and(c) the ship is proceeding en route, and(d) in the case of a mixture containing oil, the mixture is processed using oil filtering equipment meeting the requirements set out by the regulations referred to in section 9 (4) (b) (iii) of the Protection of the Sea (Prevention of Pollution from Ships) Act 1983 of the Commonwealth, and(e) the oil content of the effluent without dilution does not exceed 15 parts in 1,000,000 parts, and(f) the mixture is not a strictly prohibited oily mixture, and(g) in the case of a mixture containing oil discharged from an oil tanker:(i) the mixture does not originate from the cargo pump room bilges of the ship, and(ii) the mixture is not mixed with oil cargo residue.