ladja odvaja mehansko obdelane in razkužene odplake s pomočjo sistema, ki ga je odobrila uprava, na razdalji več kot štiri navtične milje od najbližjega kopnega, ali odplake, ki niso mehansko obdelane in razkužene, na razdalji več kot 12 navtičnih milj od najbližjega kopnega, pod pogojem, da v vsakem primeru odplake, ki so bile shranjene v zbirnih cisternah, niso izpuščene naenkrat, ampak postopoma, ko je ladja na poti in pluje s hitrostjo najmanj štiri vozle; ali
the ship is discharging comminuted and disinfected sewage using a system approved by the administration at a distance of more than four nautical miles from the nearest land, or sewage which is not comminuted or disinfected at a distance of more than 12 nautical miles from the nearest land, provided that in any case the sewage that has been stored in holding tanks shall not be discharged instantaneously but at a moderate rate when the ship is en route and proceeding at not less than four knots; or