| Non-Special Areas(Regulation 34(A) of Resolution MEPC 117(52)) |
Special Areas(Regulation 34 (B) of Resolution MEPC 117(52)) |
| The tanker may discharge oil or oily mixtures if it is more than 50 nautical miles from the nearest land |
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. Nevertheless, the prohibition does not apply to the discharge of clean or segregated ballast into the sea |
| The tanker is proceeding en route |
| The instantaneous rate of discharge of oil content does not exceed 30 litres per nautical mile |
| The total quantity of oil discharged into the sea does not exceed for tankers delivered on or before 31 December 1979, 1/15000 of the total quantity of the particular cargo of which the residue formed a part, and for tankers delivered after 31 December 1979, 1/30,000 of the total quantity of the particular cargo of which the residue formed a part |
| The tanker has in operation an oil discharge monitoring and control system and a slop tank arrangement |
