I. Introduction
Article IX:2 of the Agreement Establishing the World Trade Organization is a provision of ‘high potential relevance’.Footnote 1 It gives the Ministerial Conference and the General Council the exclusive authority to adopt interpretations of the Agreement establishing the WTO, the General Agreement on Tariffs and Trade and the other Multilateral Trade Agreements.Footnote 2 It is undisputed that these interpretations are legally binding for all Members and the adjudicating bodies of the Organization.Footnote 3 This essay discusses the most important and controversial question concerning this provision, namely whether authoritative interpretations can modify the rights and obligations stemming from membership of the Organization.Footnote 4
Since this is essentially a question of treaty interpretation, the article follows the structure of Article 31 of the Vienna Convention on the Law of Treaties (VCLT), bearing in mind that ‘[i]nterpretation pursuant to the customary rules codified in Article 31 of the Vienna Convention is ultimately a holistic exercise that should not be mechanically subdivided into rigid components.’Footnote 5 First, however, the practice on Article IX:2 will be addressed briefly.
II. WTO practice on article IX:2
WTO practice on Article IX:2 is particularly scarce. Neither the Ministerial Conference nor the General Council have adopted any authoritative interpretation yet.Footnote 6 Only once has a Member—the European Communities—requested the General Council to adopt an authoritative interpretation. The request regarded the sequencing issueFootnote 7 and was opposed by the United States on the ground that it was seeking to amend the relevant provisions.Footnote 8 Ultimately it failed to produce any concrete results.
More recently, some MembersFootnote 9 and the WTO SecretariatFootnote 10 have proposed the adoption of an authoritative interpretation of Article 30 of the TRIPS Agreement with a view to implementing paragraph 6 of the Doha Declaration on the TRIPS Agreement and Public Health. Eventually, Members opted for a decision on waiver and subsequently a formal amendment of the treaty.Footnote 11
Reports of adjudicating bodies contain only sporadic and incidental references to authoritative interpretations.Footnote 12 The most significant and yet controversial reference was made by the Appellate Body in a footnote in US–‘FSC’. Footnote 13 It has been argued that in this footnote the Appellate Body ‘implicitly endorsed’ the view that authoritative interpretations may add to or diminish Members' rights and obligations under the WTO Agreement.Footnote 14
The significance of this footnote is rather limited. In the first place, the very fact that the statement was relegated to a footnote induces prudence. Additionally, the footnote was inserted in the discussion on the 1981 Council Action which was adopted under rather peculiar circumstances and was, as admitted by the Appellate Body, ‘somewhat equivocal in tenor’.Footnote 15
It is also worth noting that for the Panel the expression ‘affecting the rights and obligations of Members’, which was used in the 1981 Council Action, did not necessarily imply any modification of these rights and obligations. In the words of the Panel,
[a]n interpretation which was legally binding on all contracting parties would … by its very binding nature ‘affect’ rights and obligations of contracting parties under the General Agreement, even if that interpretation simply served to ‘clarify’ the precise scope of those rights and obligations.Footnote 16
The footnote, therefore, does not amount in itself to conclusive proof that authoritative interpretations under Article IX:2 may not only clarify WTO law but also modify it. The implication that authoritative interpretations change existing law is not necessary. Nor would the opposite view make the footnote redundant or meaningless. Indeed, the distinction between an authoritative interpretation and an interpretation made by adjudicating bodies in dispute settlement proceedings would remain clear: only the former is legally binding upon all Members.
III. Ordinary meaning of article IX:2
As for any other treaty provision, Article IX:2 is to be interpreted in accordance with the relevant provisions of the VCLT, which have attained the status of customary law.Footnote 17 Under Article 31 (1), in particular, a treaty shall be interpreted in good faith in accordance with the ordinary meaning to be given to the terms of the treaty in their context and in the light of its object and purpose. The three elements referred to in Article 31 (1)—namely ‘ordinary meaning of the terms’, ‘their context’ and ‘the object and purpose of the treaty’—are ordered as ‘a logical progression’ not creating any hierarchy.Footnote 18
The ICJ has maintained—perhaps in too categorical terms—that
the first duty of a tribunal which is called upon to interpret and apply the provisions of a treaty, is to endeavour to give effect to them in their natural and ordinary meaning in the context in which they occur. If the relevant words in their natural and ordinary meaning make sense in their context, that is the end of the matter.Footnote 19
The key term of Article IX:2 is ‘interpretation’. Its ordinary meaning is quite clear: it is ‘the process of determining the meaning of a text’.Footnote 20 Interpretation aims at establishing the content of a given provision and in particular the existence and the extent of rights and obligations of the contracting parties. It must therefore be based on the acts concluded and behaviour taken by the contracting parties before interpretation is given.Footnote 21 This includes the subsequent practice of Members and does not prevent the interpreter from taking into account the contemporary concerns of the community of nations.Footnote 22
Hence, interpretation is not a law-creating exercise and must remain distinguished from modification of treaties.Footnote 23 In India–Patent, in particular, the Appellate Body observed that
[t]he principles of treaty interpretation set out in Article 31 of the Vienna Convention … neither require nor condone the imputation into a treaty of words that are not there or the importation into a treaty of concepts that were not intended. … Both panels and the Appellate Body must be guided by the rules of treaty interpretation set out in the Vienna Convention, and must not add to or diminish rights and obligations provided in the WTO Agreement.Footnote 24
No compelling reasons call for a departure from the ordinary meaning of the term ‘interpretation’ in Article IX:2. When adopting an interpretation under Article IX:2, therefore, the Ministerial Conference and the General Council determine the meaning of a given provision in accordance with the rules contained in the VCLT.
The argument that the application of the rules of interpretation contained in the VCLT ‘does not make much sense for a decision emanating from a non-judicial, political organ’Footnote 25 is not convincing. Contracting Parties can certainly bestow on a political body the power to adopt interpretations of a given treaty. They may even commit themselves to accept such interpretations as binding. A remarkable example is Article 1131 (2) of NAFTA according to which an interpretation by the Free Trade Commission (hereinafter FTC)—composed of a representative for each Member of the Organization—shall be binding on a Tribunal established under Chapter Eleven. The power of the Commission to adopt legally binding interpretations has never been challenged on the ground of the political character of the Commission.Footnote 26
The fact that authoritative interpretations are adopted by political bodies—instead of judicial bodiesFootnote 27—is not only permissible but also logically consequent with the purpose of Article IX:2.Footnote 28 In this sense, Article IX:2 gives the Ministerial Conference and the General Council the exclusive mandate to adopt legally binding interpretations and sets the procedure for the exercise of such a mandate. The nature and size of these organs may render the task particularly problematic but are not necessarily insurmountable obstacles.
Whereas the binding character clearly distinguishes these interpretations from those adopted by the adjudicating bodies,Footnote 29 admitting that authoritative interpretations may modify Members' rights and obligations would give to the term ‘interpretation’ a special meaning. Yet, there is no evidence that the contracting parties intended to give to such a term a special meaning.Footnote 30 Neither the adjective ‘authoritative’Footnote 31 nor the exclusive competence of the Ministerial Conference and the General Council to adopt authoritative interpretations requires attributing to the term ‘interpretation’ a special meaning.
Quite the contrary, the United States unequivocally declared that
[i]t should be clear to Members from the text and context of WTO Articles IX and X, and from their negotiating history, that interpretations pursuant to Article IX:2 are designed primarily to address situations where the precise meaning of a negotiated text may be considered unclear or where, in the process of translating text into another official language of the WTO, a word may have been used which conveys a slightly different meaning.Footnote 32
The practice related to Article 1131 of NAFTA confirms the aversion of the Members to modification of their rights and obligations through a decision adopted by a political body. When the FTC adopted the—rather controversial—interpretation of Article 1105,Footnote 33 all Members maintained that the interpretation did not amount to an amendment of the treaty.Footnote 34 This attitude cannot but be amplified in large multilateral treaties.
Furthermore, interpreting Article IX:2 as allowing the Ministerial Conference and the General Council to modify the rights and obligations of Members would have serious implications from the standpoint of the constitutional law of Members. It cannot be lightly presumed that bodies normally composed of Ministers or Ambassadors could legally commit Members without any involvement of the organs competent under the respective municipal laws to accept international trade obligations.
It is significant that amendments under Article X require the acceptance of all or a qualified majority of Members through the deposit of an instrument of acceptance within the period specified by the Ministerial Conference. This provision confirms the purely intergovernmental nature of the Organization and is intended to allow each Member to comply with its own rules and procedures related to the acceptance or modification of international obligations.
It is reassuring that the implementation of paragraph 6 of the Doha Declaration—which required the modification of the rights and obligations of Members—was pursued not as an agreed authoritative interpretation under Article IX:2 but rather through a decision on waivers under Article IX:3 of the Agreement Establishing the WTOFootnote 35 and subsequently through an amendment of Article 31 TRIPS.Footnote 36
Under Article 31 (f), in particular, compulsory licensing is permitted provided inter alia that the use of patent is authorized predominantly for the supply of the domestic market. This limitation has caused serious difficulties to Members with insufficient or no manufacturing capacities in the pharmaceutical sector from tackling public health problems. In order to address these difficulties, it has been necessary inter alia to suspend the application of the ‘predominantly’ requirement.Footnote 37 Irrespective of where the threshold of predominance is set, this clearly alters the rights and obligations of Members and cannot be obtained through authoritative interpretations.
IV. Context and relationship with article X
It is submitted that the ordinary meaning of Article IX:2 is sufficiently clear in the sense of excluding a modification of the Members rights and obligations through authoritative interpretations. In accordance with the holistic approach referred to aboveFootnote 38 and following the logical progression of Article 31 VCLT,Footnote 39 nevertheless, it is always a useful exercise to verify whether the ordinary meaning of the terms of a treaty is confirmed by or at least consistent with their context as well as the object and purpose of the treaty.Footnote 40 The notion of ‘context’ for the purpose of Article 31 (2) VCLT is particularly broadFootnote 41 and certainly includes the whole treaty to which the concerned provision belongs.Footnote 42 This is even more compelling with regard to Article IX:2, which according to its last sentence cannot be used in a manner that would undermine the amendment provisions of Article X.
In the first place, the very existence of a specific provision for the formal amendment of the covered treaties militates against the possibility of modifying the Member rights and obligations through an interpretation under Article IX:2.
The complexity of Article X, moreover, reveals the prudence and thoughtfulness of contracting parties when they considered how the covered treaties could be amended.Footnote 43 For the purpose of this paper and leaving aside the special arrangements for certain provisions of GATS and TRIPS, the following points need to be mentioned.
Article X:2 lists a number of provisions that can be amended only with the consent of all Members. The inclusion in this category of Article IX confirms the importance attached by Members to this provision as it deals with delicate constitutional questions, including the adoption of authoritative interpretations.
Under Article X:3, amendments that alter the rights and obligations of the Members not falling within Article X:2 must be accepted by two-thirds of the Members and shall be binding only upon those Members accepting them. However, the Ministerial Conference may decide by a three-fourths majority that the amendment is of such a nature that recalcitrant Members shall be free to withdraw from the Organization or to continue their membership with the consent of the Ministerial Conference.
Under Article X:4, conversely, amendments that do not alter the rights and obligations of the Members shall be binding upon all Members upon acceptance by two-thirds of them. The last paragraph is particularly interesting as it unequivocally means that amendments under Article X do not necessarily imply an alteration of the Members' rights and obligations.
Thus, Article X:4 and Article IX:2 offer Members two alternative options to define their legal relationships without altering their rights and obligations. The different qualified majorities required by Article X:4 and Article IX:2 may be explained by the different procedures leading to an amendment or an authoritative interpretation. The former is accepted through the deposit of an instrument of acceptance within the period fixed by the Ministerial Conference; the latter is directly adopted by the Ministerial Conference or the General Council.
Yet, accepting that authoritative interpretations adopted by a qualified majority can modify the rights and obligations of all members would make the guarantees offered by Article X ineffective and ultimately undermine this provision. The argument that the verb ‘undermine’ is relatively strong and permits minor revisions of trade rules, since otherwise Article IX:2 would be largely redundant and void of effect,Footnote 44 is not convincing. Nothing in Article IX or in Article X suggests that there exist different categories of amendments and even less different legal treatments for ‘substantial’ and ‘minor’ amendments. Conversely, reading Article IX:2 as allowing authoritative interpretations to modify existing rules—even within certain limits—is not compatible either with the text of this provision nor with the procedures for amendment carefully defined in Article X.
Finally, excluding that authoritative interpretations can modify the rights and obligations of Members does not affect at all the importance of Article IX:2. This provision establishes the exclusive authority of the Ministerial Conference and the General Council to adopt binding interpretations and the procedure for the adoption of such interpretations. Hence, Article IX:2 not only logically stands alone; it also perfectly completes the rules related to amendments established by Article X.
V. Object and purpose of article IX:2
The interpretation of Article IX:2 based on the ordinary meaning and supported by the contextual analysis of Article X may also be tested against the intention of the contracting parties. The meaning of the reference to the object and purpose of the treaty contained in Article 31(1) VCLT is far from clear.Footnote 45 Avoiding doctrinal disputes, the Appellate Body has pragmatically adopted the view that ‘[t]he purpose of treaty interpretation under Article 31 VCLT is to ascertain the common intention of the parties’.Footnote 46 Although Article 31(1) VCLT refers to the object and purpose of the treaty as a whole, nothing prevents the interpreter from considering also the object and purpose of specific provisions as part and parcel of the treaty itself.Footnote 47
The most obvious purpose of Article IX:2 is to provide a simple and effective mechanism to clarify the meaning of WTO rules when these rules are unclear or allow more than one interpretation.Footnote 48 Yet, through the adoption of an authoritative interpretation, the Ministerial Conference and the General Council may improve the uniformity and predictability not only of future decisions by adjudicating bodies, but also of the measures taken by Members in application of WTO law.
With Article IX:2, the parties also intended to introduce in the Organization a ‘necessary instrument of checks and balance’.Footnote 49 While accepting the (quasi)automatic adoption of the adjudicating bodies' reports, Members expressly gave the Ministerial Conference and the General Council the exclusive competence to adopt binding interpretations. This provision makes it possible to correct an interpretation of WTO rules given by adjudicating bodies when three-quarters of the MembersFootnote 50 consider it as inconsistent with their intentions and therefore erroneous.Footnote 51 Yet, as observed by the Appellate Body in India–Patent Protection, ‘[t]he duty of a treaty interpreter is to examine the words of the treaty to determine the intention of the parties’.Footnote 52
The Panel decision in Australia–Leather may exemplify the scenario for the corrective use of authoritative interpretations. For the Panel, the term ‘withdraw the subsidy’ employed in Article 4.7 of the Agreement on Subsidies and Countervailing Measures (SCM) is not limited to prospective action, namely the withdrawal of the WTO-inconsistent measures, and may encompass repayment of the prohibited subsidy.Footnote 53 This interpretation was strongly criticized by many Members,Footnote 54 including both parties to the dispute. Although a sufficiently broad consent seemed to exist, Members did not seek an authoritative interpretation under Article IX:2.
Thus, Article IX:2 introduces a mechanism to guarantee that the adjudicating bodies do not have the last word with regard to the interpretation of WTO agreements. It reserves to the Member States the right to adopt a binding interpretation aimed at confirming their intention when they accepted a given provision and their understanding as to its content.Footnote 55 It was therefore logical to confer on political bodies—the Ministerial Conference and the General Council—the exclusive authority to adopt such interpretations.
Moreover, since under Article IX:2 the Ministerial Conference and the General Council ensure the correct interpretation of the covered agreements, it is simply logical that they apply the relevant rules of customary international law as reflected in the VCLT. It is worth observing that the documents submitted by NAFTA Members States in relation to the binding interpretation adopted by the FTC mentioned above systematically referred to the VCLT and postulated the application of its rules by the FTC.Footnote 56
The effects of authoritative interpretations are confined to pending and future disputes. Admitting that they can have retroactive effects, in the sense that a party to an adjudicated dispute could request the establishment of a new panel ruling on the basis of a subsequent authoritative interpretation, would be at odds with the res judicata principle and the independence of adjudicating bodies, and would ultimately undermine the credibility of the whole dispute settlement system.Footnote 57
Article IX:2 raises another important and delicate question, namely whether adjudicating bodies may exercise judicial review of authoritative interpretations adopted by the Ministerial Conference and the General Council. Judicial review should be admissible precisely because the power to adopt authoritative interpretation is strictly limited to the clarification of existing rules, not their development.Footnote 58 The very existence of this limit implies the risk of violating it. It is therefore necessary to guarantee Members—especially those opposing the adoption of the authoritative interpretation—a remedy against abuses of Article IX:2.
It may be argued that, in the context of a dispute between Members involving a provision that has been interpreted under Article IX:2, each party may challenge the validity of the authoritative interpretation on the ground that it amounted to an amendment. Panels and the Appellate Body might review the authoritative interpretation for the sole purpose of assessing whether it has altered the rights and obligations of the Members. Should this be the case, they may declare it invalid.Footnote 59
In support to this approach in a different context, Jennings has observed that an interpretation adopted by the FTC under Article 1131 of NAFTA that cannot be reconciled with the text of the provision interpreted nor with any canon of interpretation, should be treated by NAFTA Tribunal as ‘an attempted amendment that has no binding effect’.Footnote 60
Regardless of the admissibility of judicial review, a question which has an important ‘constitutional’ yet untested dimension, it is clear that interpreting Article IX:2 in the sense of allowing the Ministerial Conference and the General Council to clarify the meaning of WTO law—and not to add or diminish the rights and obligations of the Members—fully reflects the common intention of the parties.
VI. Subsequent practice of members with regard to article IX:2
It is generally accepted in international law and expressly provided for in Article 31 (3) (b) of the VCLT that the interpreter shall take into account subsequent practice of MembersFootnote 61 in the application of the treaty.Footnote 62
On several occasions WTO adjudicating bodies have insisted that subsequent practice for the purpose of interpreting a treaty is ‘a “concordant, common and consistent” sequence of acts or pronouncements which is sufficient to establish a discernable pattern implying the agreement of the parties regarding its interpretation’.Footnote 63 The essence of subsequent practice, therefore, is the ‘agreement’ or ‘common understanding among Members’Footnote 64 as to the meaning of the provision.
Not all Members must necessarily participate in this practice:Footnote 65 acceptance of the relevant practice may be deduced from Members' behaviour.Footnote 66 Reversing the finding of the Panel on this point,Footnote 67 the Appellate Body has recently declared that unqualified lack of reaction by Members may not be sufficient to establish their acceptance of subsequent practice. It pointed out that
in specific situations, the ‘lack of reaction’ or silence by a particular treaty party may, in the light of attendant circumstances, be understood as acceptance of the practice of other treaty parties. Such situations may occur when a party that has not engaged in a practice has become or has been made aware of the practice of other parties (for example, by means of notification or by virtue of participation in a forum where it is discussed), but does not react to it.Footnote 68
What is needed, therefore, is acquiescence by the Members not actively involved in the subsequent practice. Hence, their intentional decision not to react implies that they share the interpretation given to the treaty by other Members.
The paucity of Members' practice already mentioned aboveFootnote 69 hardly allows considering subsequent practice when interpreting Article IX:2. However, it is worth pointing out ad abundantiam that nothing in the only request for an authoritative interpretation put forward so far suggests that the requesting Member was deliberately seeking a modification of the relevant treatiesFootnote 70 and that the at least another Member strongly opposed any reading of Article IX:2 in the sense of allowing the modification of the Members' rights and obligations through authoritative interpretations.Footnote 71
VII. Conclusions
The ordinary meaning of Article IX:2 is quite clear: the Ministerial Conference and the General Council can clarify but not modify the rights and obligations of Members of WTO rules through authoritative interpretations. This conclusion is supported by the context of this provision and the common intention of Members. Furthermore, modifications of WTO law without the involvement of the organs competent under municipal law to accept international trade obligations would be a rather surprising departure from normal practice and was certainly not the intention of the contracting parties in relation to Article IX:2. Significantly, Article X, which remains the only avenue to amend WTO law, requires the acceptance of the amendment by all or a qualified majority of Members through the deposit of an instrument of acceptance. It also carefully defines how WTO law can be amended—with or without alteration of Members' rights and obligations—and equally carefully protects recalcitrant Members against undertaking trade obligations they are not prepared to accept.
Article IX:2, nevertheless, remains an important—albeit often neglected—provision of WTO law for at least two reasons. On the one hand, authoritative interpretations are a simple and effective mechanism to clarify the meaning of WTO rules when these rules are unclear or allow more than one interpretation. On the other hand, authoritative interpretations are a necessary instrument of checks and balances. Adjudicating bodies do not have the last word with regard to the interpretation of WTO rules. The main political bodies of the Organization have been conferred the exclusive authority to adopt binding interpretation in order to ensure that WTO rules are interpreted correctly and in accordance with the intention of the Members.