Codification Division Publications: Diplomatic Conferences

Plenary Meetings
Committee of the Whole Meetings

United Nations Conference on the Law of Treaties

(Vienna, 26 March–24 May 1968)

Volume I: First Session: Summary records

Table of Contents
Complete PDF
Resolution 2166 (XXI) of the General Assembly convening the Conference
List of delegations
Officers of the Conference and its Committees
Secretariat of the Conference
Agenda
Rules of procedure

Summary records of the plenary meetings
First plenary meeting
	Tuesday, 26 March 1968, at 3 p.m.
	Opening of the Conference
	Address by the representative of the Federal President of the Republic of Austria
	Question of participation in the Conference
	Election of the President
	Adoption of the rules of procedure
	Adoption of the agenda
Second plenary meeting
	Wednesday, 27 March 1968, at 12 noon
	Question of the representation of South Africa
	Election of Vice-Presidents
	Election of the Chairman of the Committee of the Whole
	Election of the Chairman of the Drafting Committee
	Appointment of the Credentials Committee
Third plenary meeting
	Wednesday, 27 March 1968, at 5.45 p.m.
	Appointment of the Credentials Committee (continued)
	Appointment of other members of the Drafting Committee
	Organization of work
Fourth plenary meeting
	Wednesday, 8 May 1968, at 12 noon
	Tributes to the memory of Mr. Antonio de Luna
Fifth plenary meeting
	Friday, 24 May 1968, at 3.35 p.m.
	Report of the Credentials Committee on the first session of the Conference
	Arrangements for the second session of the Conference
	Closure of the first session of the Conference

Summary records of meetings of the Committee of the Whole
1st meeting
	Wednesday, 27 March 1968, at 3.30 p.m.
	Election of the Vice-Chairman of the Committee of the Whole
	Election of the Rapporteur of the Committee of the Whole
2nd meeting
	Thursday, 28 March 1968, at 10.50 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966
		Article 1 (The scope of the present articles)
3rd meeting
	Thursday, 28 March 1968, at 3.20 p.m.
	Tribute to the memory of Colonel Yuri Gagarin, Soviet astronaut
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (resumed from the previous meeting)
		Article 1 (The scope of the present articles)
4th meeting
	Friday, 29 March 1968, at 11 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966(continued)
		Article 2 (Use of terms) (continued)
5th meeting
	Friday, 29 March 1968, at 3.20 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 2 (Use of terms) (continued)
6th meeting
	Monday, 1 April 1968, at 10.50 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966(continued)
		Article 2 (Use of terms) (continued)
			Article 3 (International agreements not within the scope of the present articles)
7th meeting
	Monday, 1 April 1968, at 3.20 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966(continued)
		Article 3 (International agreements not within the scope of the present articles) (continued)
8th meeting
	Tuesday, 2 April 1968, at 10.50 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966(continued)
		Article 4 (Treaties which are constituent instruments of international organizations or which are adopted within international organizations)
9th meeting
	Tuesday, 2 April 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966(continued)
		Article 4 (Treaties which are constituent intruments of international organizations or which are adopted within international organizations) (continued)
10th meeting
	Wednesday, 3 April 1969, at 11.5 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966(continued)
		Article 4 (Treaties which are constituent instruments of international organizations or which are adopted within international organizations) (continued)
11th meeting
	Wednesday, 3 April 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966(continued)
	Texts proposed by the Drafting Committee¹
		Article 1 (The scope of the present Convention)
		Draft resolution approved by the Drafting Committee
	Title of Part II, Section 1
	Article 5 (Capacity of States to conclude treaties)
12th meeting
	Thursday, 4 April 1968, at 11 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966(continued)
		Article 5 (Capacity of States to conclude treaties) (continued)
13th meeting
	Thursday, 4 April 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966(continued)
		Proposed new article 5 bis (The right of participation in treaties)
		Article 6 (Full powers to represent the State in the conclusion of treaties))
14th meeting
	Friday, 5 April 1968, at 10.50 a.m.
	Tribute to the memory of the Reverend Martin Luther King
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966(resumed from the previous meeting)
		Article 7 (Subsequent confirmation of an act performed without authority)
15th meeting
	Friday, 5 April 1968, at 3.20 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966(continued)
		Article 8 (Adoption of the text)
		Article 9 (Authentication of the text)
		Proposed new article 9 bis (Consent to be bound by a treaty)
16th meeting
	Monday, 8 April 1968, at 10.50 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 10 (Consent to be bound by a treaty expressed by signature), Article 11 (Consent to be bound by a treaty expressed by ratification, acceptance or approval), and Proposed new article 11 bis
		Question of a residuary rule in favour of signature or of ratification
17th meeting
	Monday, 8 April 1968, at 3.10 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Question of a residuary rule in favour of signature or of ratification (continued)
		Article 10 (Consent to be bound by a treaty expressed by signature)
		Proposed new article 10 bis (Consent to be bound by a treaty expressed by an exchange of instruments constituting a treaty)
18th meeting
	Tuesday, 9 April 1968, at 10.50 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Proposed new article 10 bis (Consent to be bound by a treaty expressed by an exchange of instruments constituting a treaty) (continued)
		Question of a residuary rule in favour of signature or of ratification (resumed from the previous meeting)
		Article 11 (Consent to be bound by a treaty expressed by ratification, acceptance or approval) (resumed from the 16th meeting)
		Article 12 (Consent to be bound by a treaty expressed by accession)
		Proposed new article 9 bis (Consent to be bound by a treaty) (resumed from the 15th meeting)
		Proposed new article 12 bis (Other methods of expressing consent to be bound by a treaty)
		Article 13 (Exchange or deposit of instruments of ratification, acceptance, approval or accession)
		Article 14 (Consent relating to a part of a treaty and choice of differing provisions)
19th meeting
	Tuesday, 9 April 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966(continued)
		Article 15 (Obligation of a State not to frustrate the object of a treaty prior to its entry into force)
20th meeting
	Wednesday, 10 April 1968, at 10.50 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 15 (Obligation of a State not to frustrate the object of a treaty prior to its entry into force) (continued)
		Title of Part II, Section 2
21st meeting
	Wednesday, 10 April 1968, at 3.25 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 16 (Formulation of reservations) and article 17 (Acceptance of and objection to reservations)
22nd meeting
	Thursday, 11 April 1968, at 11 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 16 (Formulation of reservations) and article 17 (Acceptance of and objection to reservations) (continued)
23rd meeting
	Thursday, 11 April 1968, at 3 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 16 (Formulation of reservations) and article 17 (Acceptance of and objection to reservations) (continued)
		Article 18 (Procedure regarding reservations)
		Organization of the work of the Conference
24th meeting
	Tuesday, 16 April 1968, at 10.55 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 16 (Formulation of reservations) and article 17 (Acceptance of and objection to reservations) (resumed from the 23rd meeting)
25th meeting
	Tuesday, 16 April 1968, at 3.20 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 16 (Formulation of reservations) and article 17 (Acceptance of and objection to reservations) (continued)
		Article 19 (Legal effects of reservations)
		Article 20 (Withdrawal of reservations)
26th meeting
	Wednesday, 17 April 1968, at 11 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 21 (Entry into force)
		Article 22 (Entry into force provisionally)
27th meeting
	Wednesday, 17 April 1968, at 5.30 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 22 (Entry into force provisionally) (continued)
28th meeting
	Thursday, 18 April 1968, at 10.45 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Texts proposed by the Drafting Committee
			Titles of parts, sections and articles
			Article 3 (International agreements not within the scope of the present articles)
			Article 4 (Treaties which are constituent instruments of international organizations or are adopted within international organizations)
			Article 5 (Capacity of States to conclude treaties)
			Article 23 (Pacta sunt servanda)
29th meeting
	Thursday, 18 April 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 23 (Pacta sunt servanda) (continued)
30th meeting
	Friday, 19 April 1968, at 11 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 24 (Non-retroactivity of treaties)
		Article 25 (Application of treaties to territory)
31st meeting
	Friday, 19 April 1968, at 3.20 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 25 (Application of treaties to territory) (continued)
		Article 26 (Application of successive treaties relating to the same subject-matter)
		Article 27 (General rule of interpretation) and article 28 (Supplementary means of interpretation)
32nd meeting
	Saturday, 20 April 1968, at 10.45 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 27 (General rule of interpretation) and article 28 (Supplementary means of interpretation) (continued)
33rd meeting
	Monday, 22 April 1968, at 3.20 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 27 (General rule of interpretation) and article 28 (Supplementary means of interpretation) (continued)
34th meeting
	Tuesday, 23 April 1968, at 10.55 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Texts proposed by the Drafting Committee
			Article 8 (Adoption of the text)
			Article 6 (Full powers to represent the State in the conclusion of treaties)
			Article 7 (Subsequent confirmation of an act performed without authority)
		Article 29 (Interpretation of treaties in two or more languages)
35th meeting
	Tuesday, 23 April 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 30 (General rule regarding third States)
		Article 31 (Treaties providing for obligations for third States) and article 32 (Treaties providing for rights for third States)
		Article 33 (Revocation or modification of obligations or rights of third States)
		Article 34 (Rules in a treaty becoming binding through international custom)
36th meeting
	Wednesday, 24 April 1968, at 11 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 34 (Rules in a treaty becoming binding through international custom) (continued)
		Article 35 (General rule regarding the amendment of treaties) and article 36 (Amendment of multilateral treaties)
37th meeting
	Wednesday, 24 April 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 35 (General rule regarding the amendment of treaties) and article 36 (Amendment of multilateral treaties) (continued)
		Article 37 (Agreements to modify multilateral treaties between certain of the parties only)
		Article 38 (Modification of treaties by subsequent practice)
38th meeting
	Thursday, 25 April 1968, at 11.5 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 38 (Modification of treaties by subsequent practice) (continued)
39th meeting
	Friday, 26 April 1968, at 11 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 39 (Validity and continuance in force of treaties)
40th meeting
	Friday, 26 April 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 39 (Validity and continuance in force of treaties) (continued)
		Article 40 (Obligations under other rules of international law)
41st meeting
	Saturday, 27 April 1968, at 11.5 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 41 (Separability of treaty provisions)
42nd meeting
	Monday, 29 April 1968, at 10.45 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 41 (Separability of treaty provisions) (continued)
		Article 42 (Loss of a right to invoke a ground for invalidating, terminating, withdrawing from or suspending the operation of a treaty)
43rd meeting
	Monday, 29 April 1968, at 3.10 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 42 (Loss of a right to invoke a ground for invalidating, terminating, withdrawing from or suspending the operation of a treaty) (continued)
		Article 43 (Provisions of internal law regarding competence to conclude a treaty)
44th meeting
	Tuesday, 30 April 1968, at 11 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 44 (Specific restrictions on authority to express the consent of the State)
		Article 45 (Error)
45th meeting
	Tuesday, 30 April 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 45 (Error) (continued)
		Article 46 (Fraud) and article 47 (Corruption of a representative of the State)
46th meeting
	Tuesday, 30 April 1968, at 8.55 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 46 (Fraud) and article 47 (Corruption of a representative of the State) (continued)
47th meeting
	Thursday, 2 May 1968, at 10.50 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 46 (Fraud) and article 47 (Corruption of a representative of the State) (continued)
		Article 48 (Coercion of a representative of the State)
48th meeting
	Thursday, 2 May 1968, at 3.10 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 48 (Coercion of a representative of the State) (continued)
		Article 49 (Coercion of a State by the threat or use of force)
49th meeting
	Thursday, 2 May 1968, at 8.40 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 49 (Coercion of a State by the threat or use of force) (continued)
50th meeting
	Friday, 3 May 1968, at 10.45 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 49 (Coercion of a State by the threat or use of force) (continued)
51st meeting
	Friday, 3 May 1968, at 3.45 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 49 (Coercion of a State by the threat or use of force) (continued)
52nd meeting
	Saturday, 4 May 1968, at 10.30 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 50 (Treaties conflicting with a peremptory norm of general international law (jus cogens)
53rd meeting
	Monday, 6 May 1968, at 10.45 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 50 (Treaties conflicting with a peremptory norm of general international law (jus cogens) (continued)
54th meeting
	Monday, 6 May 1968, at 3.25 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 50 (Treaties conflicting with a peremptory norm of general international law (jus cogens) (continued)
55th meeting
	Tuesday, 7 May 1968, at 10.45 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 50 (Treaties conflicting with a peremptory norm of general international law (jus cogens) (continued)
56th meeting
	Tuesday, 7 May 1968, at 3.25 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 50 (Treaties conflicting with a peremptory norm of general international law (jus cogens) (continued)
57th meeting
	Tuesday, 7 May 1968, at 8.40 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 49 (Coercion of a State by the threat or use of force (resumed from the 51st meeting)
			Draft declaration on the prohibition of the threat or use of economic or political coercion in concluding a treaty
		Article 50 (Treaties conflicting with a peremptory norm of general international law (jus cogens) (resumed from the previous meeting)
58th meeting
	Wednesday, 8 May 1968, at 10.45 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 51 (Termination of or withdrawal from a treaty by consent of the parties)
		Article 52 (Reduction of the parties to a multilateral treaty below the number necessary for its entry into force)
		Article 53 (Denunciation of a treaty containing no provision regarding termination)
59th meeting
	Wednesday, 8 May 1968, at 3.10 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXT) adopted by the General Assembly on 5 December 1966 (continued)
		Article 53 (Denunciation of a treaty containing no provision regarding termination) (continued)
		Article 54 (Suspension of the operation of a treaty by consent of the parties)
			Texts proposed by the Drafting Committee
			Article 9 (Authentication of the text)
			(New article) Article 9 bis
			Article 10 (Consent to be bound by a treaty expressed by signature)
			(New article) Article 10 bis (Consent to be bound by a treaty expressed by an exchange of instruments constituting a treaty)
60th meeting
	Thursday, 9 May 1968, at 10.45 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 55 (Temporary suspension of the operation of a multilateral treaty by consent between certain of the parties only)
		Article 56 (Termination or suspension of the operation of a treaty implied from entering into a subsequent treaty)
		Article 57 (Termination or suspension of the operation of a treaty as a consequence of its breach)
61st meeting
	Thursday, 9 May 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 57 (Termination or suspension of the operation of a treaty as a consequence of its breach) (continued)
		Texts proposed by the Drafting Committee
			Article 11 (Consent to be bound by a treaty expressed by ratification, acceptance or approval)
			Article 12 (Consent to be bound by a treaty expressed by accession)
			Article 13 (Exchange or deposit of instruments of ratification, acceptance, approval or accession)
			Article 14 (Consent relating to a part of a treaty and choice of differing provisions)
			Article 15 (Obligation of a State not to frustrate the object of a treaty prior to its entry into force)
62nd meeting
	Thursday, 9 May 1968, at 8.40 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 58 (Supervening impossibility of performance)
63rd meeting
	Friday, 10 May 1968, at 10.50 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 59 (Fundamental change of circumstances)
64th meeting
	Friday, 10 May 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 59 (Fundamental change of circumstances) (continued)
65th meeting
	Saturday, 11 May 1968, at 9.45 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 59 (Fundamental change of circumstances) (continued)
		Article 60 (Severance of diplomatic relations)
66th meeting
	Monday, 13 May 1968, at 11 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 61 (Emergence of a new peremptory norm of general international law)
		Article 41 (Separability of treaty provisions) (resumed from the 42nd meeting)
		Article 42 (Loss of a right to invoke a ground for invalidating, terminating, withdrawing from or suspending the operation of a treaty) (resumed from the 43rd meeting)
67th meeting
	Monday, 13 May 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 42 (Loss of a right to invoke a ground for invalidating, terminating, withdrawing from or suspending the operation of a treaty) (continued)
68th meeting
	Tuesday, 14 May 1968, at 10.50 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 62 (Procedure to be followed in cases of invalidity, termination, withdrawal from or suspension of the operation of a treaty) and proposed new article 62 bis
69th meeting
	Tuesday, 14 May 1968, at 3.25 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXT) adopted by the General Assembly on 5 December 1966 (continued)
		Article 62 (Procedure to be followed in cases of invalidity, termination, withdrawal from or suspension of the operation of a treaty) (continued) and proposed new article 62 bis (continued)
70th meeting
	Tuesday, 14 May 1968, at 8.45 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 62 (Procedure to be followed in cases of invalidity, termination, withdrawal from or suspension of the operation of a treaty) (continued) and proposed new article 62 bis (continued)
		Texts proposed by the Drafting Committee
			Article 16 (Formulation of reservations)
			Article 18 (Procedure regarding reservations)
			Article 19 (Legal effects of reservations)
			Article 20 (Withdrawal of reservations)
71st meeting
	Wednesday, 15 May 1968, at 10.45 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 62 (Procedure to be followed in cases of invalidity, termination, withdrawal from or suspension of the operation of a treaty) (continued) and proposed new article 62 bis (continued)
72nd meeting
	Wednesday, 15 May 1968, at 3.20 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Texts proposed by the Drafting Committee
			Article 17 (Acceptance of and objection to reservations)
			Article 21 (Entry into force)
			Article 22 (Entry into force provisionally
			Articles 23 (Pacta sunt servanda) and 23 bis (new article)
			Article 24 (Non-retroactivity of treaties)
			Article 25 (Application of treaties to territory)
		Article 62 (Procedure to be followed in cases of invalidity, termination, withdrawal from or suspension of the operation of a treaty) (resumed from the 71st meeting) and proposed new article 62 bis (resumed from the 71st meeting)
73rd meeting
	Thursday, 16 May 1968, at 10.30 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 62 (Procedure to be followed in cases of invalidity, termination, withdrawal from or suspension of the operation of a treaty) (continued)and proposed new article 62 bis (continued)
74th meeting
	Thursday, 16 May 1968, at 3.20 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 62 (Procedure to be followed in cases of invalidity, termination, withdrawal from or suspension of the operation of a treaty) (continued) and proposed new article 62 bis (continued)
		Texts proposed by the Drafting Committee
			Article 27 (General rule of interpretation)
			Article 28 (Supplementary means of interpretation)
			Article 29 (Interpretation of treaties in two or more languages)
			Article 30 (General rule regarding third States)
			Article 31 (Treaties providing for obligations for third States)
			Article 32 (Treaties providing for rights for third States)
			Article 33 (Revocation or modification of obligations or rights of third States)
			Article 34 (Rules in a treaty becoming binding through international custom)
		Article 63 (Instruments for declaring invalid, terminating, withdrawing from or suspending the operation of a treaty)
		Article 64 (Revocation of notifications and instruments provided for in articles 62 and 63)
		Article 65 (Consequences of the invalidity of a treaty)
75th meeting
	Friday, 17 May 1968, at 10.50 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 66 (Consequences of the termination of a treaty)
		Article 67 (Consequences of the nullity or termination of treaty conflicting with a peremptory norm of general international law)
		Article 68 (Consequences of the suspension of the operation of a treaty)
76th meeting
	Friday, 17 May 1968, at 3.20 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 39 (Validity and continuance in force of treaties) (resumed from the 40th meeting)
		Article 69 (Cases of State succession and State responsibility)
		Article 70 (Case of an aggressor State)
77th meeting
	Monday, 20 May 1968, at 10.45 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 71 (Depositaries of treaties) and article 72 (Functions of depositaries)
78th meeting
	Monday, 20 May 1968, at 3.15 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Texts proposed by the Drafting Committee
			Article 35 (General rule regarding the amendment of treaties)
			Article 40 (Obligations under other rules of international law)
			Article 43 (Provisions of internal law regarding competence to conclude a treaty)
			Article 44 (Specific restrictions on authority to express the consent of the State)
			Article 45 (Error), article 46 (Fraud), article 47 (Corruption of a representative of the State) and article 48 (Coercion of a representative of the State)
			Article 49 (Coercion of a State by the threat or use of force)
		Article 71 (Depositaries of treaties) and article 72 (Functions of depositaries) (resumed from the previous meeting)
		Article 73 (Notifications and communications)
		Article 74 (Correction of errors in texts or in certified copies of treaties)
79th meeting
	Tuesday, 21 May 1968, at 11 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Article 75 (Registration and publication of treaties)
80th meeting
	Tuesday, 21 May 1968, at 5.5 p.m
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Text proposed by the Drafting Committe
			Article 50 (Treaties conflicting with a peremptory norm of general international law) (jus cogens)
		Article 62 (Procedure to be followed in cases of invalidity, termination, withdrawal from or suspension of the operation of a treaty) (resumed from the 74th meeting) and proposed new article 62 bis (resumed from the 74th meeting)
		Proposed new article 76
		Postponement of consideration of amendments containing specific references to "general multilateral treaties" and "restricted multilateral treaties"
81st meeting
	Wednesday, 22 May 1968, at 11.20 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Texts proposed by the Drafting Committee
			Article 51 (Termination of or withdrawal from a treaty by consent of the parties)
			Article 52 (Reduction of the parties to a multilateral treaty below the number necessary for its entry into force)
			Article 53 (Denunciation of a treaty containing no provision regarding termination)
			Article 54 (Suspension of the operation of a treaty by consent of the parties)
			Article 56 (Termination or suspension of the operation of a treaty implied from entering into a subsequent treaty)
			Article 57 (Termination or suspension of the operation of a treaty as a consequence of its breach)
			Article 58 (Supervening impossibility of performance)
			Article 59 (Fundamental change of circumstances)
			Articles 60 (Severance of diplomatic relations) and 69 bis (new article)
		Article 39 (Validity and continuance in force of treaties) (resumed from the 76th meeting)
		Article 63 (Instruments for declaring invalid, terminating, withdrawing from or suspending the operation of a treaty) (resumed from the 74th meeting)
82nd meeting
	Thursday, 23 May 1968, at 3.20 p.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Texts proposed by the Drafting Committee
			Article 41 (Separability of treaty provisions)
		Article 67 (Consequences of the nullity or termination of a treaty conflicting with a peremptory norm of general international law) (resumed from the 75th meeting)
		Texts proposed by the Drafting Committee
			Article 42 (Loss of a right to invoke a ground for invalidating, terminating, withdrawing from or suspending the operation of a treaty)
			Article 68 (Consequences of the suspension of the operation of a treaty)
			Article 69 (Cases of State succession and State responsibility)
			Article 70 (Case of an aggressor State)
			Article 71 (Depositaries of treaties)
			Article 72 (Functions of depositaries)
			Article 73 (Notifications and communications)
			Article 74 (Correction of errors in texts or in certified copies of treaties)
			Article 75 (Registration and publication of treaties)
83rd meeting
	Friday, 24 May 1968, at 10.55 a.m.
	Consideration of the question of the law of treaties in accordance with resolution 2166 (XXI) adopted by the General Assembly on 5 December 1966 (continued)
		Texts proposed by the Drafting Committee
			Article 71 (Depositaries of treaties)
			Article 39 (Validity and continuance in force of treaties)
			Article 61 (Emergence of a new peremptory norm of general international law)
			Article 62 (Procedure to be followed in cases of invalidity, termination, withdrawal from or suspension of the operation of a treaty)
			Article 63 (Instruments for declaring invalid, terminating, withdrawing from or suspending the operation of a treaty)
			Article 64 (Revocation of notifications and instruments provided for in articles 62 and 63)
			Article 65 (Consequences of the invalidity of a treaty)
	Arrangements for the second session of the Conference
	Conclusion of the Committee's work

¹ Although the Drafting Committee decided to defer consideration of the titles of the articles, they have been retained in the table of contents and in headings in the summary records in order to facilitate reference.