MERCHANT SHIPPING (PREVENTION OF POLLUTION BY GARBAGE) REGULATION
Disposal of garbage outside Special Areas
(1) The disposal of any plastics from a ship into the sea outside a Special Area is prohibited.
(2) The disposal of garbage other than plastics from a ship into the sea outside a Special Area is prohibited except where it is made as far from the nearest land as is practicable and-
(a) in the case of dunnage, lining and packing materials which will float, not less than 25 miles from the nearest land; or
(b) in the case of food wastes and all other garbage including paper products, rags, glass, metal, bottles, crockery and similar refuse, not less than 12 miles or, if such wastes and other garbage have been comminuted or ground to the required standard, not less than 3 miles from the nearest land.