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1 Subject to the provisions
of regulation 3 of this Annex, the discharge
of sewage into the sea is prohibited, except when:
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.1 |
the ship is discharging comminuted and disinfected
sewage using a system approved by the Administration in accordance
with regulation 9.1.2 of this Annex at
a distance of more than 3 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
4 knots; the rate of discharge shall be approved by the Administration
based upon standards developed by the Organization; or |
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.2 |
the ship has in operation an approved sewage
treatment plant which has been certified by the Administration
to meet the operational requirements referred to in regulation
9.1.1 of this Annex, and |
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.2.1 |
the test results of the plant are laid down
in the ship's International Sewage Pollution Prevention Certificate;
and |
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.2.2 |
additionally, the effluent shall not produce
visible floating solids nor cause discoloration of the surrounding
water. |
2 The provisions of paragraph
1 shall not apply to ships operating in the waters under the jurisdiction
of a State and visiting ships from other States while they are in
these waters and are discharging sewage in accordance with such
less stringent requirements as may be imposed by such State.
3 When the sewage is mixed
with wastes or waste water covered by other Annexes of MARPOL 73/78,
the requirements of those Annexes shall be complied with in addition
to the requirements of this Annex.
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