2 Any discharge
into the sea of oil or oily mixtures from ships of 400 gross tonnage
and above shall be prohibited except when all the following conditions
are satisfied:
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.1 the ship is proceeding en route;
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SEE INTERPRETATION 28
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.2 the oily mixture is processed through an oil
filtering equipment meeting the requirements of regulation 14 of this Annex;
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.3 the oil content of the effluent without dilution
does not exceed 15 parts per million;
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.4 the oily mixture does not originate from cargo
pump room bilges on oil tankers; and
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.5 the oily mixture, in case of oil tankers, is
not mixed with oil cargo residues.