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A Discharges
outside special areas
1 Subject to the provisions of regulation 4
of this Annex and paragraph 2 of this regulation, any discharge
into the sea of oil or oily mixtures from the cargo area of an oil
tanker shall be prohibited except when all the following conditions
are satisfied:
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.1 |
the tanker is not within a special area; |
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.2 |
the tanker is more than 50 nautical miles
from the nearest land; |
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.3 |
the tanker is proceeding en route; |
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.4 |
the instantaneous rate of discharge
of oil content does not exceed 30 litres per nautical mile; |
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.5 |
the total quantity of oil discharged into
the sea does not exceed for tankers delivered on or before 31
December 1979, as defined in regulation 1.28.1,
1/15,000 of the total quantity of the particular cargo of which
the residue formed a part, and for tankers delivered after 31
December 1979, as defined in regulation 1.28.2,
1/30,000 of the total quantity of the particular cargo of which
the residue formed a part; and |
SEE INTERPRETATION 53
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the tanker has in operation an oil discharge monitoring and
control system and a slop tank arrangement as required by regulations
29 and 31 of this
Annex. |
2 The provisions of
paragraph 1 of this regulation shall not apply to the discharge
of clean or segregated ballast.
B Discharges
in special areas
3 Subject to the provisions
of paragraph 4 of this regulation, 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.*
4 The provisions of
paragraph 3 of this regulation shall not apply to the discharge
of clean or segregated ballast.
5 Nothing in this
regulation shall prohibit a ship on a voyage only part of which
is in a special area from discharging outside the special area in
accordance with paragraph 1 of this regulation.
C Requirements
for oil tankers of less than 150 gross tonnage
6 The requirements
of regulations 29, 31
and 32 of this Annex shall not apply to oil
tankers of less than 150 gross tonnage, for which the control of
discharge of oil under this regulation shall be effected by the
retention of oil on board with subsequent discharge of all contaminated
washings to reception facilities. The total quantity of oil and
water used for washing and returned to a storage tank shall be discharged
to reception facilities unless adequate arrangements are made to
ensure that any effluent which is allowed to be discharged into
the sea is effectively monitored to ensure that the provisions of
this regulation are complied with.
D General requirements
7 Whenever visible
traces of oil are observed on or below the surface of the water
in the immediate vicinity of a ship or its wake, the Governments
of Parties to the present Convention should, to the extent they
are reasonably able to do so, promptly investigate the facts bearing
on the issue of whether there has been a violation of the provisions
of this regulation. The investigation should include, in particular,
the wind and sea conditions, the track and speed of the ship, other
possible sources of the visible traces in the vicinity, and any
relevant oil discharge records.
8 No discharge into
the sea shall contain chemicals or other substances in quantities
or concentrations which are hazardous to the marine environment
or chemicals or other substances introduced for the purpose of circumventing
the conditions of discharge specified in this regulation.
9 The oil residues
which cannot be discharged into the sea in compliance with paragraphs
1 and 3 of this regulation shall be retained on board for subsequent
discharge to reception facilities.
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