Discharge of garbage
Section 13 of the Resource Management (Marine Pollution) Regulations
(1) The discharge of plastics, dunnage, lining, and packaging materials in the coastal marine area from any ship is prohibited.
(2) Any person may, in the coastal marine area, discharge from any ship garbage (other than those items specified in subclause (1), including food wastes, paper, rags, glass, metal, bottles, and crockery, if-
(a) The garbage has been comminuted or ground to a particle size of 25 millimetres or less; and
(b) The discharge occurs at least-
(i) 5500 metres (3 nautical miles) seaward of the inner limits of the territorial sea; and
(ii) 500 metres (0.27 nautical miles) from any offshore installation.
(3) The discharge of garbage in the coastal marine area from any offshore installation is prohibited.