Upload
jennifer-deleon
View
227
Download
0
Embed Size (px)
Citation preview
7/29/2019 2 Treaties
1/26
DEFINITION OF TREATY
Art 2 (1) (a) VCLT
1. For the purposes of the present Convention:
(a) "treaty" means an international agreementconcluded between States in written form andgoverned
by international law, whether embodied in a single instrument or in two or more related instruments
and whatever its particular designation;
Applicable only for VCLT
3 elements
1. Concluded between States
IGOs can also enter (CIL principle)
o VCLT will not govern these. Art 3 expressly preserves legal force reg by CIL
Article 3 - International agreements not within the scope of the present Convention
The fact that the present Convention does not apply to international agreements concluded between
the States and other subjects of international law or between such other subjects of international
law, or to international agreements not in written form, shall not affect:
(a) the legal force of such agreements;(b) the application to them of any of the rules set forth in the present Convention to which they
would be subject under international law independently of the Convention;
(c) the application of the Convention to the relations of States as between themselves under
international agreements to which other subjects of international law are also parties.
VCLTSIO (not in force) designed to reg non-State treaties. Provs reflective of CIL
K between State and foreign company not reg by VCLT or CIL.Anglo-Iranian Oil Case
BUT parties may be able to make K disputes subject to international arbitration law. Texaco
Overseas Petroleum Co v Libya
Does not transform K into treaty
2. In written form
not necessary for legally binding agreement, just necessary for VCLT to apply
Legal Status of Eastern Greenland case (Norway v Denmark)
PCIJ Rep (1933) Series A/B No 53
Denmark had established colonies in other parts of Greenland
Eastern part of Greenland remained uncolonised harsh environmental conditions
Norway sent expedition to eastern Greenland and claimed sovereignty with possession in 1931
Proof of conversations between Norwegian Foreign Minister and Danish Minister accredited toNorway at the peace conferences after WW1 to the effect that:
o Denmark proposed that it would allow Norway to claim Spitzbergen if Norway agreed
not to challenge any Danish claim to the whole of Greenland
o At a later meeting, Norwegian Minister told the Danish Minister that Norway would
not create any difficulty concerning the Danish claim
Denmark claimed that this constituted a binding treaty under international law and thus Norways
1931 claim was in breach of their obligation
HELD
Norwegian Ministers words affirmed a commitment by Norway not to object to Danish claims to
sovereignty of the whole of Greenland
Minister for Foreign Affairs can by verbal commitment bind the state he represents when answering
a question in the context of diplomatic relations which falls within his province of authority
Norway was thus under an obligation to refrain from challenging Danish claims of sovereignty and
thus was obliged not to occupy any part of Greenland
1
7/29/2019 2 Treaties
2/26
Took into account that Norway received a quid pro quo the promise of Denmark not to object to
Norway claiming Spitzbergen
Nuclear Tests Cases (Australia v France, New Zealand v France)
ICJ Rep (1974) 253
Australia and NZ brought cases against France seeking an order from the court preventing Frances
atmospheric nuclear testing in the Pacific
France (through authoritative sources) had since made representations that it would cease its
atmospheric testing:
1. President of Republic issued communiqu stating that France was in a position to change to
underground testing after that summer
2. President of Republic stated at a press conference that France was committed to ending
their atmospheric nuclear tests
3. Foreign Minister made statement to General Assembly of UN that France was moving to
underground testing of its nuclear weapons
France claimed these unilateral declarations constituted a binding obligation on it not to carry out
any more atmospheric tests (and further than the court had no issue to decide if they were right)
Australia and NZ objected because they wanted the court to declare the atmospheric tests to be
against international law
HELD
When states makes declaration with the intention that it should be bound, that intention makes the
statement legally binding and the state will be required by international law to act consistently with
its undertaking
In the case of unilateral undertakings, nothing in needed such as quid pro quo or affirmation or
acceptance by any other state, and the undertaking will be directed to all states
Not all unilateral acts will draw an inference of a binding obligation, it is a matter of intention
Where statement restricts a states freedom of action, the approach of the court should be restrictive
Trust and confidence is part of international law and states should be able to rely on declarations
made by other states
The undertaking cannot be said to subject to an arbitrary power of reconsideration
Frontier Dispute Case (Burkina Faso v Mali)
ICJ Rep (1986) 554
Mediation Commission of African Unity recommended a solution in a not released report for the
dispute over the border between the two states
President of Mali made a statement that they would accept the decision even if the frontier runs
though Bamako [the capital of Mali]
Burkina Faso claimed that this constituted a binding obligation to accept the Commissions report
and findings on the border
HELD In theNuclear Tests case there were many countries concerned with the atmospheric testing, not
just the applicants to the ICJ
In those circumstances, the only way France could show an intention to be bound was through
unilateral declarations
The current case is distinguishable in that it would be appropriate for the parties to enter into formal
recognition of the agreement between them on the basis of reciprocity
Harder to find existence of legal obligation where the subject matter of the unilateral declaration is
of interest to only one state, rather than having an international audience
As they have not concluded such an agreement, the statements by the President of Mali do not
constitute a unilateral act with legal implications
Art 3 VCLT expressly preserves legal force of oral treaties.
See Art above
Railway Traffic between Lithuania and Poland Case
2
7/29/2019 2 Treaties
3/26
Advisory opinion of PCIJ HELD
participation by 2 States in adoption ofresolution of Council of League of Nations calling
upon them to enter into negotiations was capable of constituting binding ament between them.
VCLT & CIL no prescribed requirements for written form
ICJ emphasis on intention of parties where no prescribed law; parties free to choose
appropriate form to express their intentions. Temple of Preah Vihear Case
Ct will look at intention to see if oral agreement is binding in same way as treaty
Context surrounding will be important
3. Governed by international law
VCLT no express req in Art 2 (1) (a) to look at intention of parties as to whether they are
governed by international law, however the requirement is said to be embraced by this element.
YBILC (1996) ii, p 189
TREATY MAKING PROCESS
1. Capacity
Art 6 VCLT every State has capacity
Article 6 - Capacity of States to conclude treaties
Every State possesses capacity to conclude treaties
2. Full Powers
Definition Art 2 (1) (c)
(c) "full powers" means a document emanating from the competent authority of a State designating a
person or persons to represent the State for negotiating, adopting or authenticating the text of a treaty,
for expressing the consent of the State to be bound by a treaty, or for accomplishing any other act withrespect to a treaty;
Natural persons must have these to bind the State they represent
Document designates person with these powers
Article 7 - Full powers
(1) A person is considered as representing a State for the purpose of adopting or authenticating the
text of a treaty or for the purpose of expressing the consent of the State to be bound by a treaty if:
(a) he produces appropriate full powers; or
(b) it appears from the practice of the States concerned or from other circumstances that their
intention was to consider that person as representing the State for such purposes and to dispensewith full powers.
(2) In virtue of their functions and without having to produce full powers, the following are considered
as representing their State:
(a) Heads of State, Heads of Government and Ministers for Foreign Affairs, for the purpose of
performing all acts relating to the conclusion of a treaty;
(b) heads of diplomatic missions, for the purpose of adopting the text of a treaty between the
accrediting State and the State to which they are accredited;
(c) representatives accredited by States to an international conference or to an international
organization or one of its organs, for the purpose of adopting the text of a treaty in that
conference, organization or organ.
3. Adoption of text
Practically important step re: concluding multilateral requirements in Art 9
3
7/29/2019 2 Treaties
4/26
Article 9 - Adoption of the text
The adoption of the text of a treaty takes place by the consent of all the Statesparticipating in its
drawing up except as provided in paragraph 2.
The adoption of the text of a treaty at an international conference takes place by the vote of two
thirds of the States present and voting, unless by the same majority they shall decide to apply
a different rule.
4. Authentication of text
Once adopted, need to prepare final version requirements in Art 10
Article 10 - Authentication of the text
The text of a treaty is established as authentic and definitive:
(a) by such procedures as may be provided for in the text or agreed upon by the Statesparticipating in its drawing up; or
(b) failing such procedure, by the signature, signature ad referendum or initialling by therepresentatives of those States of the text of the treaty or of the Final Act of a conference
incorporating the text.
5. Consent to be bound
Most critical step in treaty formation
Activates treaty and produces legal effects for consenting State
NO State is bound by treaty unless manifests its consent to be bound
Article 11 - Means of expressing consent to be bound by a treaty
The consent of a State to be bound by a treaty may be expressed by signature, exchange of instruments
constituting a treaty, ratification, acceptance, approval or accession, or by any other means if so agreed.
Art 2 (1) (b) procedures in Art 11 mean consent
(b) "ratification", "acceptance", "approval" and "accession" mean in each case the international act sonamed whereby a State establishes on the international plane its consent to be bound by a treaty;
(i) Signature Art 12
Article 12 - Consent to be bound by a treaty expressed by signature
The consent of a State to be bound by a treaty is expressed by the signature of its representative
when:
(1) the treaty provides that signature shall have that effect;
(a) it is otherwise established that the negotiating States were agreed thatsignature should have that effect; or
(b) the intention of the State to give that effect to the signature appears from thefull powers of its representative or was expressed during the negotiation.
(2) For the purposes of paragraph 1:
(a) the initialling of a text constitutes a signature of the treaty when it isestablished that the negotiating States so agreed;
(b) the signature ad referendumof a treaty by a representative, if confirmedbyhis State, constitutes a full signature of the treaty.
Art 14 (1) (c)
1. The consent of a State to be bound by a treaty is expressed by ratification when:
the representative of the State has signed the treaty subject to ratification; or
(ii) Exchange of instruments (usually bilateral) Art 13
Article 13 - Consent to be bound by a treaty expressed by an exchange of instruments
constituting a treaty
4
7/29/2019 2 Treaties
5/26
The consent of States to be bound by a treaty constituted by instruments exchanged between
them is expressed by that exchange when;
(a) the instruments provide that their exchange shall have that effect; or
(b) it is otherwise established that those States were agreed that the exchange ofinstruments should have that effect.
(iii) Ratification, acceptance, approval Art 14
Article 14 - Consent to be bound by a treaty expressed by ratification, acceptance or
approval
The consent of a State to be bound by a treaty is expressed by ratification when:
(a) the treaty provides for such consent to be expressed by means of ratification;
(b) it is otherwise established that the negotiating States were agreed that
ratification should be required;
(c) the representative of the State has signed the treaty subject to ratification; or
(d) the intention of the State to sign the treaty subject to ratification appears from
the full powers of its representative or was expressed during the negotiation.
The consent of a State to be bound by a treaty is expressed by acceptance or approval
under conditions similar to those which apply to ratification. Ratification originally a device to ensure State agreed as Rep would have negotiated
and signed with little contact
need has largely evaporated
now serves as purpose for permitting some measure of democratic control
domestic scrutiny etc permitted (dom procedures for approving treaty) Acceptance, approval less formal than ratification procedure
@ int law 3 terms do not have separate legal effects Art 14,
Art 16 procedure for all 3
Article 16 - Exchange or deposit of instruments of ratification, acceptance, approval or
accession
Unless the treaty otherwise provides, instruments of ratification, acceptance, approval oraccession establish the consent of a State to be bound by a treaty upon:
(a) theirexchangebetween the contracting States;
(b) theirdeposit with the depositary; or
(c) theirnotification to the contracting States or to the depositary, if so agreed.
Failure to complete act of ratification (in accordance with Art 16) on int plane results in State
failing to signify consent to be bound, even ifall domestic law procedures have bee properly
concluded. Case concerning Military and Paramilitary Activities in and Against Nicaragua
(iv) Accession Art 15
Normal means of becoming party to multilateral treaty that have not signed
Eg when time for signature expires
Mode of accession will be specified in treaty
Article 15 - Consent to be bound by a treaty expressed by accession
The consent of a State to be bound by a treaty is expressed by accession when:
(a) the treaty provides that such consent may be expressed by that State by means ofaccession;
(b) it is otherwise established that the negotiating States were agreed that such consentmay be expressed by that State by means of accession; or
(c) all the parties have subsequently agreed that such consent may be expressed by thatState by means of accession.
5
7/29/2019 2 Treaties
6/26
ENTRY INTO FORCE
Bilateral usually when both States have definitively expressed their consent to be bound, or on some
specified date thereafter.
Multilateral usually designates number of signatures, ratifications or accessions reqd before treaty
enters into force
THEN indicates entry into force when # achieved, or on some specified date thereafter.Eg Art 308 (1)Law of Sea
Article 24 - Entry into force
1. A treaty enters into force in such manner and upon such date as it may provide or as the
negotiating States may agree.
2. Failing any such provision or agreement, a treaty enters into force as soon as consent to be
bound by the treaty has been established for all the negotiating States.
3. When the consent of a State to be bound by a treaty is established on a date after the treaty
has come into force, the treaty enters into force for that State on that date, unless the treaty
otherwise provides.
4. The provisions of a treaty regulating the authentication of its text, the establishment of the
consent of States to be bound by the treaty, the manner or date of its entry into force, reservations,the functions of the depositary and other matters arising necessarily before the entry into force of
the treaty apply from the time of the adoption of its text.
Effect of treaty before entry into force
Art 18 obliges States to refrain from acting contrary to the treaty after signing subject to
ratification or express consent pending entry into force.
Otherwise no full effect until entry into force
CIL principle of good faith
Art 18 States can escape when manifests clear intention not to ratify unsigning. Or if entry
into force is unduly delayed, can revoke consent.
Article 18 - Obligation not to defeat the object and purpose of a treaty prior to its entry into force
A State is obliged to refrain from acts which would defeat the object and purpose of a treaty when:
(a) it has signed the treaty or has exchanged instruments constituting the treaty subject to
ratification, acceptance or approval, until it shall have made its intention clear not to become a
party to the treaty; or
(b) it has expressed its consent to be bound by the treaty, pending the entry into force of the treaty
and provided that such entry into force is not unduly delayed.
Effect of treaty after entry into force
Binds parties pursuant to general principle of law pacta sunt servanda
Article 26 -Pacta sunt servanda
Every treaty in force is binding upon the parties to it and must be performed by them in good faith.
As between the parties, rule contained in treaty will prevail over any inconsistent rule of CIL
except rules ofjus cogens
To the extent that treaty rule is identical in content to a CIL rule, both rules apply
simultaneously.
Effect on third States
Exceptionally possible for parties to confer rights/impose obligations on States who are not parties.
Article 34 - General rule regarding third States
A treaty does not create either obligations or rights for a third State without its consent.
6
7/29/2019 2 Treaties
7/26
Consent of 3rd State is necessary
Must establish that States parties to the treaty actually intended to create rights or obligations
for the 3rd State
Obligations imposed by treaty
That consent is necessary is a strict rule Art 35 VCLT
Article 35 - Treaties providing for obligations for third States
An obligation arises for a third State from a provision of a treaty if the parties to the treaty intend
the provision to be the means of establishing the obligation and the third State expressly accepts
that obligation in writing.
Not possible for 3rd State to assume binding obligation by acquiescence, oral consent or
implication from conduct.
Obligation arisen under Art 35 may be revoked or modified only with the consent of the
treatys parties and 3rd State, unless they had all agreed otherwise. Art 37 (1) VCLT
Rights conferred by treaty
Easier to establish consent of 3
rd
State usually presumed
Article 36 - Treaties providing for rights for third States
1. A right arises for a third State from a provision of a treaty if the parties to the treaty
intend the provision to accord that right either to the third State, or to a group of States
to which it belongs, or to all States, and the third State assents thereto. Its assent shall
be presumed so long as the contrary is not indicated, unless the treaty otherwise
provides.
2. A State exercising a right in accordance with paragraph 1 shall comply with the
conditions for its exercise provided for in the treaty or established in conformity with
the treaty.
Not presumed where expressly/impliedly rejected conferral Not presumed where treaty requires 3rd State to perform an act signifying its
acceptance of the conferred right (State will need to comply with treatys requirements in
order for the right to be effectively conferred)
A right under Art 36 may not be revoked or modified by subsequent agreement of
treatys parties if shown that original intention in conferring right was that revocation or
modification could occur only with consent of 3rd State Art 37 (2) VCLT
Article 37 - Revocation or modification of obligations or rights of third States
1. When an obligation has arisen for a third State in conformity with article 35, the obligation may
be revoked or modified only with the consent of the parties to the treaty and of the third State,
unless it is established that they had otherwise agreed.2. When a right has arisen for a third State in conformity with article 36, the right may not be
revoked or modified by the parties if it is established that the right was intended not to be
revocable or subject to modification without the consent of the third State.
Effect of national law on treaty obligations
State party may not invoke provisions of internal law as justification for failure to perform
Art 27 VCLT
Article 27 - Internal law and observance of treaties
A party may not invoke the provisions of its internal law as justification for its failure to perform a
treaty. This rule is without prejudice to article 46.
Rule is subject to Art 46 internal laws regarding competence to conclude treaties
7
7/29/2019 2 Treaties
8/26
Article 46 - Provisions of internal law regarding competence to conclude treaties
1. A State may not invoke the fact that its consent to be bound by a treaty has been expressed in
violation of a provision of its internal law regarding competence to conclude treaties as invalidating
its consent unless that violation was manifest and concerned a rule of its internal law of
fundamental importance.
2. A violation is manifest if it would be objectively evident to any State conducting itself in the matter
in accordance with normal practice and in good faith.
Temporal effect of treaties
Art 28 VCLT prima facie treaties do not produce retroactive effects
Article 28 - Non-retroactivity of treaties
Unless a different intention appears from the treaty or is otherwise established, its provisions do not
bind a party in relation to any act or fact which took place or any situation which ceased to exist before
the date of the entry into force of the treaty with respect to that party.
Art 29 Territorial effect of treaties
Unless a different intention appears from the treaty or is otherwise established, a treaty is binding upon
each party in respect of its entire territory.
Common practice for States exercising authority over dependent territories etc to specify in
treatys text or by reservation/declaration when expressing consent to be bound, the extent to
which the treaty applies to such territories.
Called a territorial clause
Where no clause and parties intention cannot be otherwise established, ILC 4th Special
Rapporteur on law of treaties the general understanding today clearly is thata treaty is
presumed to apply to all territories for which the contracting States are internationally
responsible.3rd Report, YBILC (1964) II, p15.
Effect of inconsistent treaties
Article 30 - Application of successive treaties relating to the same subject-matter1. Subject to article 103 of the Charter of the United Nations, the rights and obligations of States
parties to successive treaties relating to the same subject-matter shall be determined in accordance
with the following paragraphs.
2. When a treaty specifies that it is subject to, or that it is not to be considered as incompatible with,
an earlier or later treaty, the provisions of that other treaty prevail.
3. When all the parties to the earlier treaty are parties also to the later treaty but the earlier treaty is not
terminated or suspended in operation under article 59, the earlier treaty applies only to the extent
that its provisions are compatible with those of the later treaty.
4. When the parties to the later treaty do not include all the parties to the earlier one:
(a) as between States parties to both treaties the same rule applies as in paragraph 3;
(b) as between a State party to both treaties and a State party to only one of the treaties, the treaty
to which both States are parties governs their mutual rights and obligations.5. Paragraph 4 is without prejudice to article 41, or to any question of the termination or suspension of
the operation of a treaty under article 60 or to any question of responsibility which may arise for a
State from the conclusion or application of a treaty the provisions of which are incompatible with
its obligations towards another State under another treaty.
Where all parties to new treaty (inconsistent with existing treaty) are same as existing treaty
then earlier treaty only applies to extent that its provisions are compatible with those of the later
treaty. Art 30 (3) VCLT
Where only some parties to existing are parties to later treaty then as between those States inter
se, later treaty overrides inconsistent provisions in earlier. Art 30 (4) (a) VCLT
If one State party to both and another party to only one, then as between the States, only
governed by the treaty they are both parties to. Art 30 (4) (b) VCLT
If State enters mutually exclusive treaty obligations (ie both conferring same right on different
States) then promising State will ordinarily incur responsibility for breach to whichever State it
does not honour the treaty. Art 30 (5) VCLT
8
7/29/2019 2 Treaties
9/26
Registration of treaties
Art 80 VCLT - Requires treaties to be transmitted to UN Secretariat for registration and publication.
Article 80 - Registration and publication of treaties
1. Treaties shall, after their entry into force, be transmitted to the Secretariat of the United Nations for
registration or filing and recording, as the case may be, and for publication.
2. The designation of a depositary shall constitute authorization for it to perform the acts specified in
the preceding paragraph.
Complements Art 102 UN Charter (included in order to combat practice of concluding and
maintaining secret treaties)
Treaties which do not comply with Art 102(2) remain legally binding, but cannot be invoked before
any organ of UN.
Notwithstanding ICJ is principal organ of UN (Art 7, UN Charter), unregistered treaties and
international agreements may be pleaded before ICJ which will give legal effect to them. Case
concerning Maritime Delimitation and Territorial Questions between Qatar and Bahrain (Qatar v
Bahrain) (Jurisdiction First Phase) ICJ Rep (1994) 112 at para 29
RESERVATIONS
1. Definition and Function
Device employed by States in course of expressing consent to be bound
Art 2 (1) (d) VCLT
"reservation" means a unilateral statement, however phrased or named, made by a State, when
signing, ratifying, accepting, approving or acceding to a treaty, whereby it purports to exclude or to
modify the legal effect of certain provisions of the treaty in their application to that State;
Where a unilateral declaration made by a State at time of signing is not intended to exclude or
modify the legal effect of any provisions of the treaty it is not a reservation. interpretative
declarations do not mean contingent upon other States accepting interpretation
Where interpretative declaration is made contingent upon other States accepting, then it is a
reservation, despite the name formally attached to it by the State issuing the statement. Belilos v
SwitzerlandECtHR (1988) Series A No 132 at para 49.
Reservations enable State to tailor treaty to its own will
Almost exclusively to multilateral, but sometimes to bilateral
More common practice with bilateral is that proposal to modify/amend terms is taken as a proposal
to amend final text part of treaty negotiation prior to signature
2. Custom (before VCLT)
State could not make reservation unless treaty permitted reservation and all other States who had
already consented accepted.
Gave other state parties a veto on reservations and on participation of States who wished to make
reservation
Multilateral treaties purpose to effect widespread/universal change. Tension between maintaining
integrity of text and securing most widespread adherence
Earlier, priority given to integrity of text
From 1930s onward, shift toward securing widespread acceptance
No treaty relationship would form between two state where one did not accept the reservation of the
other
Reservations to the Genocide Convention Case 1951
some States made reservations to 1948 Conv
no provision for reservations in text9
7/29/2019 2 Treaties
10/26
UN GA req ICJ advisory opinion
Q1 reserving State still party if reservation objected to by 1+ parties?
Q2 if yes, what is effect of reservation as between reserving State and those States that object and
those that accept
ICJ HELD
Re: Q1, noted increasing State practice
Therefore cannot be inferred that absence of reservation provision in treaty means States prohibited
from making reservations
Must consider character of multilateral ament, object and purpose
HERE object and purpose imply intention of GA and States that as many as possible participate
Complete exclusion of all terms restrict scope and application; detract from authority of moral
and humanitarian principles which are Convs basis.
Compatibility of reservation with object and purpose is criterion to judge as to whether reservation
will be allowed
Q1 State is party ifreservation compatible with object and purpose, otherwise not a
party
Q2- objecting party can consider reserving party not a party and accepting party can
consider reserving party a party
NB only ICJ can determine if reservation compatible with object and purpose (until decided 2(a)
&(b) apply)
3. Art 19 VCLT codification of position fromReservations to Genocide Convention case
Article 19 - Formulation of reservations
A State may, when signing, ratifying, accepting, approving or acceding to a treaty, formulate a
reservation unless:
(a) the reservation is prohibited by the treaty;
(b) the treaty provides that only specified reservations, which do not include the reservation in
question, may be made; or
(c) in cases not falling under sub-paragraphs (a) and (b), the reservation is incompatible with the objectand purpose of the treaty.
Where treaty prohibits reservation/particular types of reservation State is generally prevented
from becoming party.
Where reservation incompatible with object and purpose State is generally prevented from
becoming party.
4. Incompatibility with object and purpose
Art 19 plain that reservation incompatible is invalid.
Objective legal question
In absence of J pronouncement, attitude of parties to reservation will have practical evidential value
no objections reservation compatible with object and purpose
high # objections reservation incompatible with object and purpose
eg Art 20(2) Convention for the Elimination of all forms of Racial Discrimination incompatible
if 2/3 object
5. Acceptance and Rejection
Article 20 - Acceptance of and objection to reservations
1. A reservation expressly authorized by a treaty does not require any subsequent acceptance by the
other contracting States unless the treaty so provides.2. When it appears from the limited number of the negotiating States and the object and purpose of a
treaty that the application of the treaty in its entirety between all the parties is an essential condition
of the consent of each one to be bound by the treaty, a reservation requires acceptance by all the
parties.10
7/29/2019 2 Treaties
11/26
3. When a treaty is a constituent instrument of an international organization and unless it otherwise
provides, a reservation requires the acceptance of the competent organ of that organization.
4. In cases not falling under the preceding paragraphs and unless the treaty otherwise provides:
(a) acceptance by another contracting State of a reservation constitutes the reservingState a party to the treaty in relation to that other State if or when the treaty is in force
for those States;
(b) an objection by another contracting State to a reservation does not preclude the entryinto force of the treaty as between the objecting and reserving States unless a contrary
intention is definitely expressed by the objecting State;
(c) an act expressing a State's consent to be bound by the treaty and containing areservation is effective as soon as at least one other contracting State has accepted the
reservation.
5. For the purposes of paragraphs 2 and 4 and unless the treaty otherwise provides, a reservation isconsidered to have been accepted by a State if it shall have raised no objection to the
reservation by the end of a period of twelve months after it was notified of the reservation or
by the date on which it expressed its consent to be bound by the treaty, whichever is later.
CIL objection needed to be within reasonable time
6. Reservations and HR treaties
argument that impermissible reservations to HR treaties severable from reserving States consent to
be bound ie reservation disregarded, State still bound
Art 19 (c) + Art 20 = no specific consequences
CIL Reservations to Genocide Convention case prohibited reservation nullifies consent even
where universal and humanitarian object and purpose
Belilos
HELD reservation made by Switzerland to European Ct HR 1950 impermissible because violated
treatys prohibition on making reservation of general character and requirement to make brief
statement of domestic laws necessitating reservation @ para 60 reservation invalid, but Switzerland is and regards itself bound irrespective of validity
Severed impermissible reservation, gave no further reasons for departure from CIL (noted in Weber
v Swtiz)
7. Effects of reservations
Article 21 - Legal effects of reservations and of objections to reservations
1. A reservation established with regard to another party in accordance with articles 19, 20 and 23:
(a) modifies for the reserving State in its relations with that other party the provisions of the treaty
to which the reservation relates to the extent of the reservation; and
(b) modifies those provisions to the same extent for that other party in its relations with the
reserving State.
2. The reservation does not modify the provisions of the treaty for the other parties to the treaty interse.
3. When a State objecting to a reservation has not opposed the entry into force of the treaty between
itself and the reserving State, the provisions to which the reservation relates do not apply as
between the two States to the extent of the reservation.
CIL + gen principles will operate as between objecting and reserving parties where treaty
provisions excised. English Channel Arbitration (UK v France) @ para 62
8. Withdrawal of reservations and objections
Change in legal relations effective upon notification Art 22 (3)
11
7/29/2019 2 Treaties
12/26
Article 22 - Withdrawal of reservations and of objections to reservations
1. Unless the treaty otherwise provides, a reservation may be withdrawn at any time and the consent
of a State which has accepted the reservation is not required for its withdrawal.
2. Unless the treaty otherwise provides, an objection to a reservation may be withdrawn at any time.
3. Unless the treaty otherwise provides, or it is otherwise agreed:
(a) the withdrawal of a reservation becomes operative in relation to another contracting State only
when notice of it has been received by that State;
(b) the withdrawal of an objection to a reservation becomes operative only when notice of it has
been received by the State which formulated the reservation.
Article 23 - Procedure regarding reservations
1. A reservation, an express acceptance of a reservation and an objection to a reservation must be
formulated in writing and communicated to the contracting States and other States entitled to
become parties to the treaty.
2. If formulated when signing the treaty subject to ratification, acceptance or approval, a reservation
must be formally confirmed by the reserving State when expressing its consent to be bound by the
treaty. In such a case the reservation shall be considered as having been made on the date of its
confirmation.
3. An express acceptance of, or an objection to, a reservation made previously to confirmation of the
reservation does not itself require confirmation.4. The withdrawal of a reservation or of an objection to a reservation must be formulated in writing.
INTERPRETATION
3 schools 1951 Sir Gerald Fitzmaurice
1. intention of parties/founding fathers approach - Prime object to ascertain and give effect tointentions
2. textual/ordinary meaning of words approach - Prime object to establish what text meansaccording to ordinary/apparent meaning
3. teleological/aims and objects approach - Prime object re: general purpose of treaty establish and construe clauses in this light
Not exclusive of each other
1. General rule of interpretation
Article 31 - General rule of interpretation
1. A treaty shall be interpreted in good faith in accordance with the ordinary meaning to begiven to the terms of the treaty in theircontext and in the light of its object and purpose.
2. The context for the purpose of the interpretation of a treaty shall comprise, in addition to thetext, including its preamble and annexes:
(a) any agreement relating to the treaty which was made between all the parties in connexion withthe conclusion of the treaty;
(b) any instrument which was made by one or more parties in connexion with the conclusion of the
treaty and accepted by the other parties as an instrument related to the treaty.
3. There shall be taken into account, together with the context:
(a) any subsequent agreement between the parties regarding the interpretation of the treaty or the
application of its provisions;
(b) any subsequent practice in the application of the treaty which establishes the agreement of the
parties regarding its interpretation;
(c) any relevant rules of international law applicable in the relations between the parties.
4. A special meaning shall be given to a term if it is established that the parties so intended.
E Ct HR process of interpretation is a unity, single combined operation. Golder v UK(1975)
Practices not in strict compliance with treaty but performed in intended compliance and habitual by
all ORby 1 and acceptance/acquiescence
12
7/29/2019 2 Treaties
13/26
o Then may agree as to how the treaty is to be interpreted
o Need to be taken into account. Art 31 (3) (b)
Eg Art 27(3) UN Charter practice of abstention by State as opposed to object did not defeat of
resolution (despite Charters silence on this)
2. Supplementary means of interpretation
Article 32 - Supplementary means of interpretationRecourse may be had to supplementary means of interpretation, including the preparatory work of the
treaty and the circumstances of its conclusion, in order to confirm the meaning resulting from the
application of article 31, or to determine the meaning when the interpretation according to article 31:
(a) leaves the meaning ambiguous or obscure; or
(b) leads to a result which is manifestly absurd or unreasonable.
preparatory work of the treaty includes
all records of the negotiations whether in the form of diplomatic correspondence or
public pronouncements
proceedings of any international conference convened in connection with preparing the
treaty
work of any expert/official body (eg ILC) whose work contributed to treatys adoption ie anything which indicates the intentions of the parties in the course of adopting the treaty
Lotus Case PCIJ - There is no occasion to have regard to preparatory work if the text of the
convention is sufficiently clear in itself.
3. Treaties in different languages
Usually appear in languages of all State parties
Article 33 - Interpretation of treaties authenticated in two or more languages
(1) When a treaty has been authenticated in two or more languages, the text is equally
authoritative in each language, unless the treaty provides or the parties agree that, in case of
divergence, a particular text shall prevail.(2) A version of the treaty in a language other than one of those in which the text was
authenticated shall be considered an authentic text only if the treaty so provides or the parties so
agree.
(3) The terms of the treaty are presumed to have the same meaning in each authentic text.
(4) Except where a particular text prevails in accordance with paragraph 1, when a comparison
of the authentic texts discloses a difference of meaning which the application of articles 31 and
32 does not remove, the meaning which best reconciles the texts, having regard to the object
and purpose of the treaty, shall be adopted.
An ambiguous, obscure, absurd or unreasonable outcome reached in interpretation of treaty in
accordance with Art 31 can be removed by reference to other authoritative language versions
Seems use of Art 32 not avail CF probs arise due to diffs meaning of diff texts see Art 33 (4)
recourse to Art 31 + 32
Mavrommatis Palestine Concessions Case (Greece v UK) 1926
HELD where 2 versions possess = auth and one is wider, Ct bound to adopt more limited
interpretation to harmonise both and in accordance with parties intentions
Wemhoff v Germany (1968)
E Ct HR
Diff where interpreting law making treaty
Where 2 versions not exactly same Ct must interpret so as to reconcile as far as possible
law making treaty necessary to seek interpretation most appropriate to realise aim and achieveobjects NOT restrict greatest degree of obligations undertaken by parties
13
7/29/2019 2 Treaties
14/26
AMENDMENT & MODIFICATION
Amendment formal alteration, affects all parties
Modification variation only affects some parties
Bilateral amendment by subsequent agreement
Article 39 - General rule regarding the amendment of treaties
A treaty may be amended by agreement between the parties. The rules laid down in Part II apply tosuch an agreement except in so far as the treaty may otherwise provide.
Multilateral rules more complex
Proposal notified to all
Negotiations and agreement to adopt
Amend treaty does not bind any State party to 1st and not to amended treaty
Relations governed by Art 30 (4) (b)
4. When the parties to the later treaty do not include all the parties to the earlier one:
(a) as between States parties to both treaties the same rule applies as in paragraph 3;
(b) as between a State party to both treaties and a State party to only one of the treaties, the treaty
to which both States are parties governs their mutual rights and obligations.
New State party after amendment bound by amended version unless contrary intention expressed
o Re: relations with States to 1st, new party is regulated by 1st treaty
o Where 1st specifies procedures for amendment must use these Art 40
Article 40 - Amendment of multilateral treaties
(1) Unless the treaty otherwise provides, the amendment of multilateral treaties shall be governed by
the following paragraphs.
(2) Any proposal to amend a multilateral treaty as between all the parties must be notified to all the
contracting States, each one of which shall have the right to take part in:
(a) the decision as to the action to be taken in regard to such proposal;(b) the negotiation and conclusion of any agreement for the amendment of the treaty.
(3) Every State entitled to become a party to the treaty shall also be entitled to become a party to the
treaty as amended.
(4) The amending agreement does not bind any State already a party to the treaty which does not
become a party to the amending agreement; article 30, paragraph 4(b), applies in relation to such
State.
(5) Any State which becomes a party to the treaty after the entry into force of the amending agreement
shall, failing an expression of a different intention by that State:
(a) be considered as a party to the treaty as amended; and
(b) be considered as a party to the unamended treaty in relation to any party to the treaty not bound
by the amending agreement.
Modification by agreement
Notify all unless treaty has otherwise. Art 41 (2)
If treaty silent, modification only OK if does not affect rights/obligations and compatible with object
and purpose of treaty as a whole. Art 41 (1)
Article 41 - Agreements to modify multilateral treaties between certain of the parties only
1. Two or more of the parties to a multilateral treaty may conclude an agreement to modify the treaty
as between themselves alone if:
(a) the possibility of such a modification is provided for by the treaty; or
(b) the modification in question is not prohibited by the treaty and:
(i) does not affect the enjoyment by the other parties of their rights under the treaty or theperformance of their obligations;
(ii) does not relate to a provision, derogation from which is incompatible with the effective
execution of the object and purpose of the treaty as a whole.
14
7/29/2019 2 Treaties
15/26
2. Unless in a case falling under paragraph 1(a) the treaty otherwise provides, the parties in question
shall notify the other parties of their intention to conclude the agreement and of the modification to
the treaty for which it provides.
INVALIDITY
CIL makes voidable NOT void parties choice to continue treaty
Art 42 (1) validity only impeached through application of present Conv
Article 42 - Validity and continuance in force of treaties
1. The validity of a treaty or of the consent of a State to be bound by a treaty may be impeached only
through the application of the present Convention.
2. The termination of a treaty, its denunciation or the withdrawal of a party, may take place only as a
result of the application of the provisions of the treaty or of the present Convention. The same rule
applies to suspension of the operation of a treaty.
Article 45 - Loss of a right to invoke a ground for invalidating, terminating, withdrawing from or
suspending the operation of a treaty
A State may no longer invoke a ground for invalidating, terminating, withdrawing from or suspending
the operation of a treaty under articles 46 to 50 or articles 60 and 62 if, after becoming aware of thefacts:
(a) it shall have expressly agreed that the treaty is valid or remains in force or continues in
operation, as the case may be; or
(b) it must by reason of its conduct be considered as having acquiesced in the validity of the treaty
or in its maintenance in force or in operation, as the case may be.
Does not apply in cases of coercion or breach ofjus cogens
1. Constitutional ultra vires [voidable]
Pre VCLT if contrary to States internal Const particularly the procedure for consent, validity of
treaty was uncertain
Legal Status Eastern Greenland
N contended any treaty invalid because Foreign Minister forbidden from okaying international
agreements on matters of importance without prior OK from King-in-Council
PCIJ violation of domestic law irrelevant
Spanish Zone of Morocco Claims
HELD unnecessary to consider Spains contention that agreement not in accord with Moroccos
law
Art 46 VCLT
Rule only invoked by State whose internal law is violated
Internal law must be one with respect to a persons competence to conclude treaties
o Art 27 precludes reliance on merely general domestic law (see above)
Presumption that a States representative possesses authority
o Removed if manifest (Art 46 (2)) and concerns domestic rule of fundamental importance
Article 46 - Provisions of internal law regarding competence to conclude treaties
1. A State may not invoke the fact that its consent to be bound by a treaty has been expressed in
violation of a provision of its internal law regarding competence to conclude treaties as invalidating
its consent unless that violation was manifest and concerned a rule of its internal law of
fundamental importance.
2. A violation is manifest if it would be objectively evident to any State conducting itself in the matterin accordance with normal practice and in good faith.
2. Ultra vires by representative [voidable]
15
7/29/2019 2 Treaties
16/26
Article 47 - Specific restrictions on authority to express the consent of a State
If the authority of a representative to express the consent of a State to be bound by a particular treaty
has been made subject to a specific restriction, his omission to observe that restriction may not be
invoked as invalidating the consent expressed by him unless the restriction was notified to the other
negotiating States prior to his expressing such consent.
Operates narrowly
3. Error [voidable]
Temple of Preah VihearCase 1962
1904 agreement between France and Siam settled border between Cambodia & S (Thailand)
o border to follow watershed line
o details by mixed Commission
Commission produced map clearly placed Buddhist temple on C side
o Prepared with French technical experts, ament of S reps
o Not endorsed by Commission (ceased before map finished)
o Received and accepted by F & S authorities
T took possession of temple (on other side of border) with military, removed artefacts T contended boundary error, temple should be on T side
C relied on map, sought ruling ICJ
ICJ HELD
Error not allowed if
1. party contributed by conduct
2. party could have avoided
3. circumstances put party on notice
HERE character and qualifications difficult to plead error
Map drew attention to temple
S did not accept independent investigation
Art 48 not identical to ICJ
Art 48 (2) omits 2 above too wide as to leave little operation of the rule
Article 48 - Error
1. A State may invoke an error in a treaty as invalidating its consent to be bound by the treaty if the
error relates to a fact or situation which was assumed by that State to exist at the time when the
treaty was concluded and formed an essential basis of its consent to be bound by the treaty.
2. Paragraph 1 shall not apply if the State in question contributed by its own conduct to the error or if
the circumstances were such as to put that State on notice of a possible error.
3. An error relating only to the wording of the text of a treaty does not affect its validity; article 79
then applies.
4. Fraud [voidable]
General principle of law that fraud makes contracts voidable/void
Article 49 - Fraud
If a State has been induced to conclude a treaty by the fraudulent conduct of another negotiating State,
the State may invoke the fraud as invalidating its consent to be bound by the treaty.
ILC fraud includes any false statements, misrepresentations, other deceitful proceedings by which
State induced to give consent which would otherwise not have given.
5. Corruption [voidable]
16
7/29/2019 2 Treaties
17/26
Article 50 - Corruption of a representative of a State
If the expression of a State's consent to be bound by a treaty has been procured through the corruption
of its representative directly or indirectly by another negotiating State, the State may invoke such
corruption as invalidating its consent to be bound by the treaty.
ILC re: scope strong term
Only acts calculated to exercise a substantial influence on disposition of representative to conclude
treaty
Small courtesy/favour not sufficient to show corruption
6. Coercion [void]
Consent must be freely given
Art 51 Representative
ILC includes threats to representatives family; threats of blackmail
Article 51 - Coercion of a representative of a State
The expression of a State's consent to be bound by a treaty which has been procured by the coercion of
its representative through acts or threats directed against him shall be without any legal effect.
Art 52 - State
Article 52 - Coercion of a State by the threat or use of force
A treaty is void if its conclusion has been procured by the threat or use of force in violation of the
principles of international law embodied in the Charter of the United Nations
Fisheries Jurisdiction Case Art 52 VCLT and UN Charter both make an agreement amde under
threat/use of force void
Pressures/measure that do not violate UN Charter do not invalidate even if consent direct result
Eg peace treaty forced on aggressor does not make the treaty invalid CF peace treaty forced on victim will be invalid
Economic coercion is unlikely to be sufficient
7. Violation of jus cogens/erga omnes [void]
UNSC Resolution CH VII, UN Charter both state that a State cannot use a treaty to avoid a rule of
Jus cogens
Article 53 - Treaties conflicting with a peremptory norm of general international law (jus cogens)
A treaty is void if, at the time of its conclusion, it conflicts with a peremptory norm of general
international law. For the purposes of the present Convention, a peremptory norm of general
international law is a norm accepted and recognized by the international community of States as awhole as a norm from which no derogation is permitted and which can be modified only by a
subsequent norm of general international law having the same character.
ILC no list given so as not to limit
No international tribunal has invalidated forJC
What isJC?
o Aloeboetoe v Suriname 1994 - Not necessary to consider 1762 treaty including
obligation of capture and return of runaway slaves. HELD treaty today would have
been held null and void
o Nicaragua (Merits) Case @ para 190 - ICJ principle against use of force in
international relations =JCo Barcelona Traction Case @ paras 33-34 - ICJ obiter - Existence of obligations erga
omnes largely correspond withJCIncludes Outlawing acts of aggression, Genocide,
Protection from slavery, racial discrimination
17
7/29/2019 2 Treaties
18/26
o East TimorCase @ para 29 - ICJ assertion that rights of people to self determination
as evolved from UN Charter and practise has erga omnes character is irreproachable
o Also see notes on jus cogens
8. Unequal treaties
Argued CIL that where treaty is in violation of principle of sovereign equality, it will be void
NOT in VCLT
CIL highly doubtful
CONSEQUENCES OF INVALIDITY
Absolute (void) coercion, incompatibility with jus cogens
1. any State party subject to coercion can invoke invalidity
2. treaty NOT divided into valid and invalid provisions, fails as a whole (Art 44(5)
3. acquiescence is irrelevant still void Art 45
Relative (voidable) error, fraud, corruption, ultra vires, breach internal law
1. Only invoked by State victim
2. Cured by acquiescence/express consent ofaggrieved ie if a state has, after becomingaware of the facts, agreed that the treaty remain in force or acquiesces to the treaty by
conduct, it loses its right to claim the treaty is invalid Art 45
3. Nullity may only vitiate some provisions
Art 44 (2) general rule is that where any part of a treaty is invalid, that invalidity affects
the whole treaty and it falls as a whole
Art 44 (3) exception where the invalidity arises only with regard to particular clauses,
they can be severed
Art 44(5) provisions cannot be severed where the problem relates to coercion or conflict
with ajus cogens rule
Art 8 treaty without legal effect if representative no authority and State does not confirmact.
Article 44 - Separability of treaty provisions
1. A right of a party, provided for in a treaty or arising under article 56, to denounce, withdraw from
or suspend the operation of the treaty may be exercised only with respect to the whole treaty unless
the treaty otherwise provides or the parties otherwise agree.
2. A ground for invalidating, terminating, withdrawing from or suspending the operation of a treaty
recognized in the present Convention may be invoked only with respect to the whole treaty except
as provided in the following paragraphs or in article 60.
3. If the ground relates solely to particular clauses, it may be invoked only with respect to those
clauses where:
(a) the said clauses are separable from the remainder of the treaty with regard to their application;(b) it appears from the treaty or is otherwise established that acceptance of those clauses was not an
essential basis of the consent of the other party or parties to be bound by the treaty as a whole;
and
(c) continued performance of the remainder of the treaty would not be unjust.
4. In cases falling under articles 49 and 50 the State entitled to invoke the fraud or corruption may do
so with respect either to the whole treaty or, subject to paragraph 3, to the particular clauses alone.
5. In cases falling under articles 51, 52 and 53, no separation of the provisions of the treaty is
permitted.
Article 8 - Subsequent confirmation of an act performed without authorization
An act relating to the conclusion of a treaty performed by a person who cannot be considered under
article 7 as authorized to represent a State for that purpose is without legal effect unless afterwardsconfirmed by that State.
Invalid treaty/severable provision = void and no legal force Art 69 (1)
18
7/29/2019 2 Treaties
19/26
State performance of acts in good faith before treatys invalidity invoked are not unlawful
merely by reason of invalidity Art 69 (2) (b)
See Art 69 (2) (a) wrt States resolving respective relations if treaty rendered invalid
Article 69 - Consequences of the invalidity of a treaty
1. A treaty the invalidity of which is established under the present Convention is void. The provisions
of a void treaty have no legal force.2. If acts have nevertheless been performed in reliance on such a treaty:
(a) each party may require any other party to establish as far as possible in their mutual relations
the position that would have existed if the acts had not been performed;
(b) acts performed in good faith before the invalidity was invoked are not rendered unlawful by
reason only of the invalidity of the treaty.
3. In cases falling under articles 49, 50, 51 or 52, paragraph 2 does not apply with respect to the party
to which the fraud, the act of corruption or the coercion is imputable.
4. In the case of the invalidity of a particular State's consent to be bound by a multilateral treaty, the
foregoing rules apply in the relations between that State and the parties to the treaty.
State who performs acts that would have been unlawful but for treaty or not with a bona fidebelief in
the treatys validity will be liable for those acts if treaty is invalid Art 74
Article 74 - Diplomatic and consular relations and the conclusion of treaties
The severance or absence of diplomatic or consular relations between two or more States does not
prevent the conclusion of treaties between those States. The conclusion of a treaty does not in itself
affect the situation in regard to diplomatic or consular relations.
Treaty invalid by conflict withjus cogens
Parties required as far as possible to eliminate the consequence of any act done in reliance on
any treaty provision in conflict with jus cogens Art 71(1)(a)
Parties required to bring their relations in line with jus cogens Art 71(1)(b)
Article 71 - Consequences of the invalidity of a treaty which conflicts with a peremptory norm of
general international law
1. In the case of a treaty which is void under article 53 the parties shall:
(a) eliminate as far as possible the consequences of any act performed in reliance on any provision
which conflicts with the peremptory norm of general international law; and
(b) bring their mutual relations into conformity with the peremptory norm of general international
law.
2. In the case of a treaty which becomes void and terminates under article 64, the termination of the
treaty:
(a) releases the parties from any obligation further to perform the treaty;
(b) does not affect any right, obligation or legal situation of the parties created through the executionof the treaty prior to its termination; provided that those rights, obligations or situations may
thereafter be maintained only to the extent that their maintenance is not in itself in conflict with
the new peremptory norm of general international law.
Article 75?
DENUNCIATION & WITHDRAWAL
Presumption in favour of continuing validity once properly concluded pacta sunt servanda
States can withdraw (Multi) or denounce (Bilat)
Withdrawal of one party will not ordinarily terminate Denunciation in a bilateral treaty terminates the treaty
Art 42 (2) withdrawal/denunciation can only take place as result of application of provisions of treaty
19
7/29/2019 2 Treaties
20/26
Provisions in treaty take precedence if VCLT inconsistent
Article 42 - Validity and continuance in force of treaties
1. The validity of a treaty or of the consent of a State to be bound by a treaty may be impeached only
through the application of the present Convention.
2. The termination of a treaty, its denunciation or the withdrawal of a party, may take place only as a
result of the application of the provisions of the treaty or of the present Convention. The same rule
applies to suspension of the operation of a treaty.
Art 56 (1) general rule is that States may not withdraw/denounce if treaty has no specific provisions
2 exceptions
if intention of parties to allow Art 56 (1) (a)
if implied by nature of treaty Art 56 (1) (b)
Article 56 - Denunciation of or withdrawal from a treaty containing no provision regarding
termination, denunciation or withdrawal
1. A treaty which contains no provision regarding its termination and which does not provide for
denunciation or withdrawal is not subject to denunciation or withdrawal unless:
(a) it is established that the parties intended to admit the possibility of denunciation or withdrawal;
or(b) a right of denunciation or withdrawal may be implied by the nature of the treaty.
2. A party shall give not less than twelve months' notice of its intention to denounce or withdrawfrom a treaty under paragraph 1.
ICJ has accepted Art 56 as reflection of CIL
Case Concerning Military and Paramilitary Acts in and Against Nicaragua
Treaties of alliance, certain types of commercial treaties, conferring jurisdiction on international
tribunals may be readily implied
Where treaty silent on period of notice
CIL requires reasonable notice to be given
VCLT requires 12 months notice Art 56 (2)
TERMINATION & SUSPENSION
Modes of termination
valid denunciation
with consent of all parties to treaty
subsequent conclusion of an incompatible treaty
occurrence of a material breach
supervening impossibility of performance
fundamental change in circumstances - rebus sic stantibus
severance of diplomatic relations
emergence of new rule ofjus cogens
1. Agreement/consent of all parties
2 ways to terminate/suspend treaty by agreement or consent of parties
In a way provided within the treaty Art 54(a), Art 57(a)
Where all other parties have been notified or consulted and give their consent Art 54(b), Art
57(b)
2 or more parties can suspend the treatys effect between themselves by consent if the treatyallows or does not prohibit that action [as long as it does not affect the rights/obligations of
others and is not incompatible with the object/purpose of the treaty] s58(1)
Notice must be given to all other parties to the treaty
20
7/29/2019 2 Treaties
21/26
Article 54 - Termination of or withdrawal from a treaty under its provisions or by consent of the
parties
The termination of a treaty or the withdrawal of a party may take place:
(a) in conformity with the provisions of the treaty; or
(b) at any time by consent of all the parties after consultation with the other contracting States.
Article 57 - Suspension of the operation of a treaty under its provisions or by consent of the
parties
The operation of a treaty in regard to all the parties or to a particular party may be suspended:
(a) in conformity with the provisions of the treaty; or
(b) at any time by consent of all the parties after consultation with the other contracting States.
Article 58 - Suspension of the operation of a multilateral treaty by agreement between certain of
the parties only
(1) Two or more parties to a multilateral treaty may conclude an agreement to suspend the operation of
provisions of the treaty, temporarily and as between themselves alone, if:
(a) the possibility of such a suspension is provided for by the treaty; or
(b) the suspension in question is not prohibited by the treaty and:
(i) does not affect the enjoyment by the other parties of their rights under the treaty or theperformance of their obligations;
(ii) is not incompatible with the object and purpose of the treaty.
(2) Unless in a case falling under paragraph 1(a) the treaty otherwise provides, the parties in question
shall notify the other parties of their intention to conclude the agreement and of those provisions of
the treaty the operation of which they intend to suspend.
2. Incompatible later treaty
Where later treaty relating to same subject matter:
Earlier treaty terminates if later provides or it is the intention of parties that the they should be
governed by the later treaty Art 59 (1) (a)
Earlier treaty terminates if new provisions so incompatible that not capable of being applied @same time Art 59 (1) (b)
Suspension of earlier treaty may result if intention established Art 59 (2)
Article 59 - Termination or suspension of the operation of a treaty implied by conclusion of a
later treaty
1. A treaty shall be considered as terminated if all the parties to it conclude a later treaty relating to the
same subject-matter and:
(a) it appears from the later treaty or is otherwise established that the parties intended that the
matter should be governed by that treaty; or
(b) the provisions of the later treaty are so far incompatible with those of the earlier one that the two
treaties are not capable of being applied at the same time.
2. The earlier treaty shall be considered as only suspended in operation if it appears from the later treaty
or is otherwise established that such was the intention of the parties.
3. Material Breach
Article 60 - Termination or suspension of the operation of a treaty as a consequence of its breach
1. A material breach of bilateral treaty by one of the parties entitles the other to invoke the breach as a
ground for terminating the treaty or suspending its operation in whole or in part.
2. A material breach of a multilateral treaty by one of the parties entitles:
(a) the other parties by unanimous agreement to suspend the operation of the treaty in whole or in
part or to terminate it either:(i) in the relations between themselves and the defaulting State, or
(ii) as between all the parties;
(b) a party specially affected by the breach to invoke it as a ground for suspending the operation of
the treaty in whole or in part in the relations between itself and the defaulting State;21
7/29/2019 2 Treaties
22/26
(c) any party other than the defaulting State to invoke the breach as a ground for suspending the
operation of the treaty in whole or in part with respect to itself if the treaty is of such a character
that a material breach of its provisions by one party radically changes the position of every
party with respect to the further performance of its obligations under the treaty.
3. A material breach of a treaty, for the purposes of this article, consists in:
(a) a repudiation of the treaty not sanctioned by the present Convention; or
(b) the violation of a provision essential to the accomplishment of the object or purpose of the
treaty.
4. The foregoing paragraphs are without prejudice to any provision in the treaty applicable in the
event of a breach.
5. Paragraphs 1 to 3 do not apply to provisions relating to the protection of the human person
contained in treaties of a humanitarian character, in particular to provisions prohibiting any form of
reprisals against persons protected by such treaties.
Bilateral ground for termination/suspension in whole or part Art 60 (1)
Multilateral range of responses available for non-breaching parties
1. unanimous agreement to terminate or suspend in whole/part either between themselves and
breacher OR between all parties Art 60 (2) (a)
2. if 1+ more affected may not be possible to obtain unanimous agreement. VCLT permits Statesspecially affected to invoke breach as termination/suspension treaty relations between them and
breacher Art 60 (2) (b)
3. if breach radically changes position of every other State re: further performance of obligations non-
breacher can suspend (only) treaty in whole/part re: itself Art 60 (2) (c)
4. Not automatic termination. Non-breachers have option to terminate/suspend. State loses option ifknows facts and expressly agrees to/acquiesces in treatys continuance Art 45
5. once invoked, procedures in Art 65-67 must be observed before termination/suspension Art 42 (2)
6. State may forfeit right if has prevented breacher from performing obligations by unlawful act.
Factory at Chorzw; Gabcikovo-Nagymaros
(unlawful act may be breach of another treaty/CIL)
conduct of non-breacher which contributes to creation of situation not conducive to
breachers performance of obligations may deprive non-breacher of right even ifper se
NOT unlawful Gabcikovo
Treaty is not terminated because State breached international law outside treaty
Gabcikovo Only material breach of treaty itself that gives rise
Material Breach
Either a repudiation of the treaty not sanctioned by VCLT or a violation of a provision of the
treaty essential to the accomplishment of the object purpose Art 60 (3)
ILC
material cf fundamental
Must be where breach of serious character
Not only breach where State violates provisions central to object/purpose but also breach of
ancillary provision essential to effective execution.
Although it does not specify seriousness, better view seems to be that the breach must beserious
South West Africa Case
22
7/29/2019 2 Treaties
23/26
SA material breach of UN mandate because engaged in deliberate and persistent violation of
obligations which destroys very object and purpose or agreement
NB treaty itself can have provisions within itself defining what a material breach is, or under what
circumstances may a breach be used as a reason to terminate Art 60 (4)
South West Africa Case 1970
SA exercising UN mandate over Namibia (SWA)
1966 UN GA Resolution 2145 (XXI) re: SA breach of mandate (apartheid policy etc)
Terminated mandate
SA refused to accept termination
1970 UNSC Resolution 276 continued presence of SA illegal etc
SA continued refusal
UNSC sought advisory opinion ICJ
ICJ HELD
mandate validly terminated
VCLT codifying CIL only allows termination upon material breach
UNGA Resolution determines both types of breach occurred (Art 60 (3))
SA disavowed mandate therefore repudiated
Exercise of right to termination where deliberate and persistent violation of obligations whichdestroy very object and purpose of relationship
General law principle that party has right to terminate where material breach
Material breach provisions do not apply to HR Art 60 (5)
(ie HR are fundamental to global relations and therefore can never be suspended/terminated)
4. Supervening Impossibility
Subject matter disappears/destroyed rendering performance is impossible
State practice to termination (ILC)
Art 61 does not automatically terminate, must be invoked as ground.
VCLT procedures must be followed Art 42 (2)
Article 61 - Supervening impossibility of performance
1. A party may invoke the impossibility of performing a treaty as a ground for terminating or
withdrawing from it if the impossibility results from the permanent disappearance or destruction of an
object indispensable for the execution of the treaty. If the impossibility is temporary, it may be invoked
only as a ground for suspending the operation of the treaty.
2. Impossibility of performance may not be invoked by a party as a ground for terminating,
withdrawing from or suspending the operation of a treaty if the impossibility is the result of a breach by
that party either of an obligation under the treaty or of any other international obligation owed to any
other party to the treaty.
5. Fundamental Change of Circumstances
rebus sic stantibus CIL
Permanently terminated if fundamental change
Much narrow doctrine than frustration in K
Article 62 - Fundamental change of circumstances
1. A fundamental change of circumstances which has occurred with regard to those existing at the time
of the conclusion of a treaty, and which was not foreseen by the parties, may not be invoked as a
ground for terminating or withdrawing from the treaty unless:
(a) the existence of those circumstances constituted an essential basis of the consent of the parties to be
bound by the treaty; and(b) the effect of the change is radically to transform the extent of obligations still to be performed under
the treaty.
23
7/29/2019 2 Treaties
24/26
2. A fundamental change of circumstances may not be invoked as a ground for terminating or
withdrawing from a treaty:
(a) if the treaty establishes a boundary; or
(b) if the fundamental change is the result of a breach by the party invoking it either of an obligation
under the treaty or of any other international obligation owed to any other party to the treaty.
3. If, under the foregoing paragraphs, a party may invoke a fundamental change of circumstances as a
ground for terminating or withdrawing from a treaty it may also invoke the change as a ground for
suspending the operation of the treaty.
Fisheries Jurisdiction Case 1973
UK alleged violation by Iceland 1961 agreement
o I not to extend exclusive fish zone beyond distance of 12 miles from coast
o All disputes referred to ICJ
1971 I extended to 50 miles
UK brought to ICJ
I argued circs changed since 1961 fish technology meant that 12 miles no longer protected I
interests as State peculiarly dependent on fishing for livelihood and development
I argued that because of this change, the ability to refer disputes to ICJ was also terminated
ICJ HELD
must be fundamental change of circs Apprehended dangers for vital interests cannot constitute fundamental change
Must show radical transformation
HERE wholly unsatisfied
Gabcikovo (Hungary v Slovakia)
Rejected H submission that 1977 treaty with S re: development scheme spanning mutual border
was affected by rebus sic stantibus
H argued change no longer socialist, uneconomic, serious environmental concerns
HELD
socialist orientation material factor in concluding BUT not necessary to carry out
objects/purpose
Economic concerns- even though the economic viability of the projects diminished, they werenot radically transformed
Treaty took account of environment, but changes in scientific knowledge are not unforeseen
That the principle will only apply in exceptional circumstances, and only where the
fundamental change in circumstances is unforeseen
existences of circumstances at time of treaty must constitute an essential basis of consent
6. Severance of diplomatic relations
Article 63 - Severance of diplomatic or consular relations
The severance of diplomatic or consular relations between parties to a treaty does not affect the legal
relations established between them by the treaty except in so far as the existence of diplomatic or
consular relations is indispensable for the application of the treaty
7. New norm of jus cogens
Article 64 - Emergence of a new peremptory norm of general international law (jus cogens)
If a new peremptory norm of general international law emerges, any existing treaty which is in conflict
with that norm becomes void and terminates.
CONSEQUENCES OF TERMINATION/SUSPENSION
Treaty itself may provide/parties agree consequences
Otherwise, generally
Article 70 - Consequences of the termination of a treaty
24
7/29/2019 2 Treaties
25/26
1. Unless the treaty otherwise provides or the parties otherwise agree, the termination of a treaty under
its provisions or in accordance with the present Convention:
(a) releases the parties from any obligation further to perform the treaty;
(b) does not affect any right, obligation or legal situation of the parties created through the execution of
the treaty prior to its termination.
2. If a State denounces or withdraws from a multilateral treaty, paragraph 1 applies in the relations
between that State and each of the other parties to the treaty from the date when such denunciation or
withdrawal takes effect.
Where new rule ofjus cogens has developed- Art 71 (2)
2. In the case of a treaty which becomes void and terminates under article 64, the termination of the
treaty:
(a) releases the parties from any obligation further to perform the treaty;
(b) does not affect any right, obligation or legal situation of the parties created through the
execution of the treaty prior to its termination; provided that those rights, obligations or
situations may thereafter be maintained only to the extent that their maintenance is not in itself
in conflict with the new peremptory norm of general international law.
Article 72 - Consequences of the suspension of the operation of a treaty
1. Unless the treaty otherwise provides or the parties otherwise agree, the suspension of the operation ofa treaty under its provisions or in accordance with the present Convention:
(a) releases the parties between which the operation of the treaty is suspended from the obligation to
perform the treaty in their mutual relations during the period of the suspension;
(b) does not otherwise affect the legal relations between the parties established by the treaty.
2. During the period of the suspension the parties shall refrain from acts tending to obstruct the
resumption of the operation of the treaty.
Article 73 - Cases of State succession, State responsibility and outbreak of hostilities
The provisions of the present Convention shall not prejudge any question that may arise in regard to a
treaty from a succession of States or from the international responsibility of a State or from the outbreak
of hostilities between States.
India v Pakistan 1972 Procedures
I unilateral suspension 1994 Convention on Civil Aviation wrt P
Justified on basis of Ps alleged involvement in hijack
P challenged before ICAO
I denied ICAO jurisdiction cl permitting recourse to ICAO in treaty also suspended
I appealed to ICJ
ICJ HELD
mere unilateral suspension does not = jurisdiction cl inoperative
Need clause (aka jurisdiction cl) to determine validity of suspension/termination
Jurisdiction clause will not be suspended/terminated along with rest of provisions
where it permits adjudication as to the validity of the suspension or adjudication
PROCEDURES FOR INVALIDITY, DENUNCIATION, WITHDRAWAL, TERMINATION
AND SUSPENSION
Art 42 points to Arts 65-68
Art 42 (1) grounds and procedures in VCLT only can support invalidity
Art 42 (2) term/susp/denun/w/d treaty itself may have provisions see Art 65 (4)
Party must notify all others in writing Art 65 (1), 67 (1)
At least 3 months to object Art 65 (2), 67 (2) if no object
Art 65 (3) if objection resolution in peace Art 33 UN
12 months for Art 33 Un statement procedures if no resolution, 2 further mechanisms
25
7/29/2019 2 Treaties
26/26
Dispute wrt rules ofjus cogens can go to ICJ or arbitration Art 66 (a)
Dispute wrt other provisions conciliation through the UN Art 66 (b)
Failure to notify in accordance with Art 65 (1) does not stop a party notifying other
partys later at the time for performance or when claimed to be in violation [unless under Art
45] see Art 65 (5)
Article 65 - Procedure to be followed with respect to invalidity, termination, withdrawal from orsuspension of the operation of a treaty
1. A party which, under the provisions of the present Convention, invokes either a defect in its consent
to be bound by a treaty or a ground for impeaching the validity of a treaty, terminating it, withdrawing
from it or suspending its operation, must notify the other parties of its claim. The notification shall
indicate the measure proposed to be taken with respect to the treaty and the reasons therefor.
2. If, after the expiry of a period which, except in cases of special urgency, shall not be less than three
months after the receipt of the notification, no party has raised any objection, the party making the
notification may carry out in the manner provided in article 67 the measure which it has proposed.
3. If, however, objection has been raised by any other party, the parties shall seek a solution through the
means indicated in Article 33 of the Charter of the United Nations.
4. Nothing in the foregoing paragraphs shall affect the rights or obligations of the parties under any
provisions in force binding the parties with regard to the settlement of disputes.5. Without prejudice to article 45, the fact that a State has not previously made the notification
prescribed in paragraph 1 shall not prevent it from making such notification in answer to another party
claiming performance of the treaty or alleging its violation.
Article 66 - Procedures for judicial settlement, arbitration and conciliation
If, under paragraph 3 of article 65, no solution has been reached within a period of twelve months
following the date on which the objection was raised, the following procedures shall be followed:
(a) any one of the parties to a dispute concerning the application or the interpretation of article 53 or 64
may, by a written application, submit it to the International Court of Justice for a decision unless the
parties by common consent agree to submit the dispute to arbitration;
(b) any one of the parties to a dispute concerning the application or the interpretation of any of the other
articles in Part V of the present Convention may set in motion the procedure specified in the Annex tothe Convention by submitting a request to that effect to the Secretary-General of the United Nations.
Article 67 - Instruments for declaring invalid, terminating, withdrawing from or suspending the
operation of a treaty
1. The notification provided for under article 65, paragraph 1 must be made in writing.
2. Any act declaring invalid, terminating, withdrawing from or suspending the operation of a treaty
pursuant to the provisions of the treaty or of paragraphs 2 or 3 of article 65 shall be carried out through
an instrument communicated to the other parties. If the instrument is not signed by the Head of State,
Head of Government or Minister for Foreign Affairs, the representative of the State communicating it
may be called upon to produce full powers.
Article 68 - Revocation of notifications and instruments provided for in articles 65 and 67
A notification or instrument provided for in arti