(1) The present Convention may be amended upon
the proposal of a Contracting Government by any of the procedures
specified in this Article.
(2) Amendment by unanimous acceptance:
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(a) Upon the request of a Contracting Government,
any amendment proposed by it to the present Convention shall be communicated
by the Organization to all Contracting Governments for consideration
with a view to unanimous acceptance.
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(b) Any such amendment shall enter into force
twelve months after the date of its acceptance by all Contracting
Governments unless an earlier date is agreed upon. A Contracting Government
which does not communicate its acceptance or rejection of the amendment
to the Organization within three years of its first communication
by the latter shall be deemed to have accepted the amendment.
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(c) Any proposed amendment shall be deemed to
be rejected if it is not accepted under sub-paragraph (b) of the present
paragraph within three years after it has been first communicated
to all Contracting Governments by the Organization.
(3) Amendment after consideration in the Organization:
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(a) Upon the request of a Contracting Government,
any amendment proposed by it to the present Convention will be considered
in the Organization. If adopted by a majority of two-thirds of those
present and voting in the Maritime Safety Committee of the Organization,
such amendment shall be communicated to all Members of the Organization
and all Contracting Governments at least six months prior to its consideration
by the Assembly of the Organization.
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(b) If adopted by a two-thirds majority of those
present and voting in the Assembly, the amendment shall be communicated
by the Organization to all Contracting Governments for their acceptance.
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(c) Such amendment shall come into force twelve
months after the date on which it is accepted by two-thirds of the
Contracting Governments. The amendment shall come into force with
respect to all Contracting Governments except those which, before
it comes into force, make a declaration that they do not accept the
amendment.
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(d) The Assembly, by a two-thirds majority of
those present and voting, including two-thirds of the Governments
represented on the Maritime Safety Committee and present and voting
in the Assembly, may propose a determination at the time of its adoption
that an amendment is of such an important nature that any Contracting
Government which makes a declaration under sub-paragraph (c), and
which does not accept the amendment within a period of twelve months
after it comes into force, shall cease to be a party to the present
Convention upon the expiry of that period. This determination shall
be subject to the prior acceptance of two-thirds of the Contracting
Governments to the present Convention.
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(e) Nothing in this paragraph shall prevent the
Contracting Government which first proposed action under this paragraph
on an amendment to the present Convention from taking at any time
such alternative action as it deems desirable in accordance with paragraph
(2) or (4) of this Article.
(4) Amendment by a conference:
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(a) Upon the request of a Contracting Government,
concurred in by at least one-third of the Contracting Governments,
a conference of Governments will be convened by the Organization to
consider amendments to the present Convention.
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(b) Every amendment adopted by such a conference
by a two-thirds majority of those present and voting of the Contracting
Governments shall be communicated by the Organization to all Contracting
Governments for their acceptance.
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(c) Such amendment shall come into force twelve
months after the date on which it is accepted by two-thirds of the
Contracting Governments. The amendment shall come into force with
respect to all Contracting Governments except those which, before
it comes into force, make a declaration that they do not accept the
amendment.
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(d) By a two-thirds majority of those present
and voting, a conference convened under sub-paragraph (a) may determine
at the time of its adoption that an amendment is of such an important
nature that any Contracting Government which makes a declaration under
sub-paragraph (c), and which does not accept the amendment within
a period of twelve months after it comes into force, shall cease to
be a party to the present Convention upon the expiry of that period.
(5) Any amendments to the present Convention made
under this Article which relate to the structure of a ship shall apply
only to ships the keels of which are laid, or which are at a similar
stage of construction, on or after the date on which the amendment
comes into force.
(6) The Organization shall inform all Contracting
Governments of any amendments which come into force under this Article,
together with the date on which each such amendment will come into
force.
(7) Any acceptance or declaration under this Article
shall be made by a notification in writing to the Organization which
shall notify all Contracting Governments of the receipt of the acceptance
or declaration.