Stricter rules for carriage of chemicals and vegetable oils in bulk
Stricter rules on
carrying vegetable oils in bulk by ship are among the changes introduced by amendments
to the International Convention for the Prevention of Pollution from Ships, 1973,
as modified by the Protocol of 1978 relating thereto (MARPOL 73/78), which enter
into force on 1 January 2007.
The revised
Annex II regulations on carriage of noxious liquid substances carried in bulk
(including chemicals and vegetable oils) introduce significant changes to the
way certain products may be transported, in order to protect the marine environment
from harm.
Revised Annex
I regulations on carriage of oil by ship update and re-order the regulations as
well as introducing some new rules.
In addition,
a number of amendments to the International Convention for the Safety of Life
at Sea (SOLAS) also enter into force on 1 January 2007.
Revised MARPOL
Annex I (oil)
The revised MARPOL Annex I Regulations for the prevention of pollution by
oil incorporates the various amendments adopted since MARPOL entered into
force in 1983, including the amended regulation 13G (regulation 20 in the revised
annex) and regulation 13H (regulation 21 in the revised annex) on the phasing-in
of double hull requirements for oil tankers.
It also separates,
in different chapters, the construction and equipment provisions from the operational
requirements and makes clear the distinctions between the requirements for new
ships and those for existing ships. The revision provides a more user-friendly,
simplified Annex I.
New requirements
in the revised Annex I include the following:
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Regulation
22 Pump-room bottom protection: on oil tankers of 5,000 tonnes deadweight
and above constructed on or after 1 January 2007, the pump-room shall be
provided with a double bottom. |
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Regulation
23 Accidental oil outflow performance - applicable to oil tankers delivered
on or after 1 January 2010; construction requirements to provide adequate
protection against oil pollution in the event of stranding or collision.
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Revised MARPOL
Annex II (noxious liquid substances carried in bulk)
The revised Annex II Regulations for the control of pollution by noxious
liquid substances in bulk includes a new four-category categorization system
for noxious and liquid substances.
The new categories
are:
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Category
X: Noxious Liquid Substances which, if discharged into the sea from
tank cleaning or deballasting operations, are deemed to present a major
hazard to either marine resources or human health and, therefore, justify
the prohibition of the discharge into the marine environment; |
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Category
Y: Noxious Liquid Substances which, if discharged into the sea from
tank cleaning or deballasting operations, are deemed to present a hazard
to either marine resources or human health or cause harm to amenities or
other legitimate uses of the sea and therefore justify a limitation on the
quality and quantity of the discharge into the marine environment; |
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Category
Z: Noxious Liquid Substances which, if discharged into the sea from
tank cleaning or deballasting operations, are deemed to present a minor
hazard to either marine resources or human health and therefore justify
less stringent restrictions on the quality and quantity of the discharge
into the marine environment; and |
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Other
Substances: substances which have been evaluated and found to fall outside
Categories X, Y or Z because they are considered to present no harm to marine
resources, human health, amenities or other legitimate uses of the sea when
discharged into the sea from tank cleaning of deballasting operations. The
discharge of bilge or ballast water or other residues or mixtures containing
these substances are not subject to any discharge requirements of MARPOL
Annex II. |
The revised annex
includes a number of other significant changes. Improvements in ship technology,
such as efficient stripping techniques, has made possible significantly lower
permitted discharge levels of certain products which have been incorporated
into Annex II. For ships constructed on or after 1 January 2007, the maximum
permitted residue in the tank and its associated piping left after discharge
will be set at a maximum of 75 litres for products in categories X, Y and Z
- compared with previous limits which set a maximum of 100 or 300 litres, depending
on the product category.
Alongside
the revision of Annex II, the marine pollution hazards of thousands of chemicals
have been evaluated by the Evaluation of Hazardous Substances Working Group,
giving a resultant GESAMP Hazard Profile which indexes the substance according
to its bio-accumulation; bio-degradation; acute toxicity; chronic toxicity;
long-term health effects; and effects on marine wildlife and on benthic habitats.
Transport of
vegetable oils
As a result of the hazard evaluation process and the new categorization system,
vegetable oils which were previously categorized as being unrestricted will
now be required to be carried in chemical tankers.
The revised Annex includes under regulation 4 Exemptions specifically regulation 4.1.3, a provision for the
Administration to exempt ships certified to carry individually identified vegetable
oils, subject to certain provisions relating to the location of the cargo tanks
carrying the identified vegetable oil.
An MEPC resolution, MEPC.148(54) Guidelines for the transport of vegetable
oils in deep tanks or in independent tanks specially designed for the carriage
of such vegetable oils on board dry cargo ships, allows general dry cargo
ships that are currently certified to carry vegetable oil in bulk, to continue
to carry these vegetable oils on specific trades. The guidelines also take effect
on 1 January 2007.
Consequential
amendments to the IBC Code
An amended International Bulk Chemical Code (IBC Code) reflecting the changes
to MARPOL Annex II, also enters into force on 1 January 2007. The amendments
incorporate revisions to the categorization of certain products relating to
their properties as potential marine pollutants, as well as revisions to ship
type and carriage requirements following their evaluation by the Evaluation
of Hazardous Substances Working Group.
Ships constructed
after 1986 carrying substances identified in chapter 17 of the IBC Code must
follow the requirements for design, construction, equipment and operation of
ships contained in the Code.
SOLAS amendments
Also on 1 January 2007, amendments to the International Convention for the Safety
of Life at Sea (SOLAS) enter into force. They include the following:
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New
SOLAS regulation II-1/3-7 to require ship construction drawings to be maintained
on board and ashore. |
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New
SOLAS regulation II-1/3-8 concerning towing and mooring equipment. The regulation
will require all ships to be provided with arrangements, equipment and fittings
of sufficient safe working load to enable the safe conduct of all towing
and mooring operations associated with the normal operation of the ship.
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New
SOLAS regulation II-1/23-3 concerning water level detectors in the cargo
hold(s) on new single hold cargo ships other than bulk carriers. |
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Amendment
to SOLAS regulation II-1/31 concerning machinery control to restrict the
application of propulsion control automation systems to new ships only.
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In addition, amendments
to the Guidelines on the enhanced programme of inspections during surveys
of bulk carriers and oil tankers (resolution A.744(18)), as amended) enter
into force on 1 January 2007. The amendments incorporate some elements of the
Condition Assessment Scheme (CAS) required for certain single hull tankers under
MARPOL Annex I and include re-organization of the guidelines to include a new
section on survey guidelines for the inspection of double hull tankers.
Briefing
1, 1 January 2007
For further
information please contact:
Lee Adamson, Head, Public Information Services on 020 7587 3153 (media@imo.org)
or
Natasha Brown, External Relations Officer on 020 7587 3274 (media@imo.org).
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