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11 October 2018

49.MARPOL annex 1 discharge criteria

October 11, 2018 Posted by AK No comments

Annex I- Regulations for the Prevention of Pollution by Oil

Chapter 3 - Requirements for machinery spaces of all ships

Part C - Control of operational discharge of oil Regulation 15 - Control of discharge of oil

A Discharges outside special areas

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:
.1 the ship is proceeding en route;
.2 the oily mixture is processed through an oil filtering equipment meeting the requirements of regulation 14 of this Annex;
.3 the oil content of the effluent without dilution does not exceed 15 parts per million;
.4 the oily mixture does not originate from cargo pump-room bilges on oil tankers; and
.5 the oily mixture, in case of oil tankers, is not mixed with oil cargo residues.

B Discharges in special areas


3 Any discharge into the sea of oil or oily mixtures from ships of 400 gross tonnage and above shall be prohibited except when all of the following conditions are satisfied:
.1 the ship is proceeding en route;
.2 the oily mixture is processed through an oil filtering equipment meeting the requirements of regulation 14.7 of this Annex;
.3 the oil content of the effluent without dilution does not exceed 15 parts per million;
.4 the oily mixture does not originate from cargo pump-room bilges on oil tankers; and
.5 the oily mixture, in case of oil tankers, is not mixed with oil cargo residues.
4 In respect of the Antarctic area, any discharge into the sea of oil or oily mixtures from any ship shall be prohibited.
5 Nothing in this regulation shall prohibit a ship on a voyage only part of which is in a special area from discharging outside a special area in accordance with paragraph 2 of this regulation.




Annex I- Regulations for the Prevention of Pollution by Oil

Chapter 4 - Requirements for the cargo area of oil tankers 

Part C - Control of operational discharges of oilRegulation 34 - Control of discharge of oil

A Discharges outside special areas

1 Subject to the provisions of regulation 4 of this Annex and paragraph 2 of this regulation, any discharge into the sea of oil or oily mixtures from the cargo area of an oil tanker shall be prohibited except when all the following conditions are satisfied:
.1 the tanker is not within a special area;
.2 the tanker is more than 50 nautical miles from the nearest land;
.3 the tanker is proceeding en route;
.4 the instantaneous rate of discharge of oil content does not exceed 30 litres per nautical mile;
.5 the total quantity of oil discharged into the sea does not exceed for tankers delivered on or before 31 December 1979, as defined in regulation 1.28.1, 1/15,000 of the total quantity of the particular cargo of which the residue formed a part, and for tankers delivered after 31 December 1979, as defined in regulation 1.28.2, 1/30,000 of the total quantity of the particular cargo of which the residue formed a part; and

.6 the tanker has in operation an oil discharge monitoring and control system and a slop tank arrangement as required by regulations 29 and 31 of this Annex.
2 The provisions of paragraph 1 of this regulation shall not apply to the discharge of clean or segregated ballast.


B Discharges in special areas

3 Subject to the provisions of paragraph 4 of this regulation, any discharge into the sea of oil or oily mixture from the cargo area of an oil tanker shall be prohibited while in a special area.*

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