A. The Panel's Findings and Interpretative Analysis
The Panel's findings, from which the United States appeals, and the gist of its supporting reasoning, are set forth below in extenso:
� [W]e are of the opinion that the chapeau [of] Article XX, interpreted within its context and in the light of the object and purpose of GATT and of the WTO Agreement, only allows Members to derogate from GATT provisions so long as, in doing so, they do not undermine the WTO multilateral trading system, thus also abusing the exceptions contained in Article XX. Such undermining and abuse would occur when a Member jeopardizes the operation of the WTO Agreement in such a way that guaranteed market access and nondiscriminatory treatment within a multilateral framework would no longer be possible. � We are of the view that a type of measure adopted by a Member which, on its own, may appear to have a relatively minor impact on the multilateral trading system, may nonetheless raise a serious threat to that system if similar measures are adopted by the same or other Members. Thus, by allowing such type of measures even though their individual impact may not appear to be such as to threaten the multilateral trading system, one would affect the security and predictability of the multilateral trading system. We consequently find that when considering a measure under Article XX, we must determine not only whether the measure on its own undermines the WTO multilateral trading system, but also whether such type of measure, if it were to be adopted by other Members, would threaten the security and predictability of the multilateral trading system.
In our view, if an interpretation of the chapeau of Article XX were to be followed which would allow a Member to adopt measures conditioning access to its market for a given product upon the adoption by the exporting Members of certain policies, including conservation policies, GATT 1994 and the WTO Agreement could no longer serve as a multilateral framework for trade among Members as security and predictability of trade relations under those agreements would be threatened. This follows because, if one WTO Member were allowed to adopt such measures, then other Members would also have the right to adopt similar measures on the same subject but with differing, or even conflicting, requirements. � Market access for goods could become subject to an increasing number of conflicting policy requirements for the same product and this would rapidly lead to the end of the WTO multilateral trading system.
� Section 609, as applied, is a measure conditioning access to the US market for a given product on the adoption by exporting Members of conservation policies that the United States considers to be comparable to its own in terms of regulatory programmes and incidental taking.
� it appears to us that, in light of the context of the term "unjustifiable" and the object and purpose of the WTO Agreement, the US measure at issue constitutes unjustifiable discrimination between countries where the same conditions prevail and thus is not within the scope of measures permitted under Article XX.
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We therefore find that the US measure at issue is not within the scope of measures permitted under the chapeau of Article XX.(emphasis added)
Article XX of the GATT 1994 reads, in its relevant parts:
Article XX
General Exceptions
Subject to the requirement that such measures are not applied in a manner which would constitute a means of arbitrary or unjustifiable discrimination between countries where the same conditions prevail, or a disguised restriction on international trade, nothing in this Agreement shall be construed to prevent the adoption or enforcement by any Member of measures:
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(b) necessary to protect human, animal or plant life or health;
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(g) relating to the conservation of exhaustible natural resources if such measures are made effective in conjunction with restrictions on domestic production or consumption;
The Panel did not follow all of the steps of applying the "customary rules of interpretation of public international law" as required by Article 3.2 of the DSU. As we have emphasized numerous times, these rules call for an examination of the ordinary meaning of the words of a treaty, read in their context, and in the light of the object and purpose of the treaty involved. A treaty interpreter must begin with, and focus upon, the text of the particular provision to be interpreted. It is in the words constituting that provision, read in their context, that the object and purpose of the states parties to the treaty must first be sought. Where the meaning imparted by the text itself is equivocal or inconclusive, or where confirmation of the correctness of the reading of the text itself is desired, light from the object and purpose of the treaty as a whole may usefully be sought.
In the present case, the Panel did not expressly examine the ordinary meaning of the words of Article XX. The Panel disregarded the fact that the introductory clauses of Article XX speak of the "manner" in which measures sought to be justified are "applied". In United States - Gasoline, we pointed out that the chapeau of Article XX "by its express terms addresses, not so much the questioned measure or its specific contents as such, but rather the manner in which that measure is applied."(emphasis added) The Panel did not inquire specifically into how the application of Section 609 constitutes "a means of arbitrary or unjustifiable discrimination between countries where the same conditions prevail, or a disguised restriction on international trade." What the Panel did, in purporting to examine the consistency of the measure with the chapeau of Article XX, was to focus repeatedly on the design of the measure itself. For instance, the Panel stressed that it was addressing "a particular situation where a Member has taken unilateral measures which, by their nature, could put the multilateral trading system at risk." (emphasis added)
The general design of a measure, as distinguished from its application, is, however, to be examined in the course of determining whether that measure falls within one or another of the paragraphs of Article XX following the chapeau. The Panel failed to scrutinize the immediate context of the chapeau: i.e., paragraphs (a) to (j) of Article XX. Moreover, the Panel did not look into the object and purpose of the chapeau of Article XX. Rather, the Panel looked into the object and purpose of the whole of the GATT 1994 and the WTO Agreement, which object and purpose it described in an overly broad manner. Thus, the Panel arrived at the very broad formulation that measures which "undermine the WTO multilateral trading system" must be regarded as "not within the scope of measures permitted under the chapeau of Article XX." Maintaining, rather than undermining, the multilateral trading system is necessarily a fundamental and pervasive premise underlying the WTO Agreement; but it is not a right or an obligation, nor is it an interpretative rule which can be employed in the appraisal of a given measure under the chapeau of Article XX. In United States - Gasoline, we stated that it is "important to underscore that the purpose and object of the introductory clauses of Article XX is generally the prevention of 'abuse of the exceptions of [Article XX]'."(emphasis added) The Panel did not attempt to inquire into how the measure at stake was being applied in such a manner as to constitute abuse or misuse of a given kind of exception.
The above flaws in the Panel's analysis and findings flow almost naturally from the fact that the Panel disregarded the sequence of steps essential for carrying out such an analysis. The Panel defined its approach as first "determin[ing] whether the measure at issue satisfies the conditions contained in the chapeau." If the Panel found that to be the case, it said that it "shall then examine whether the US measure is covered by the terms of Article XX(b) or (g)." The Panel attempted to justify its interpretative approach in the following manner:
As mentioned by the Appellate Body in its report in the Gasoline case, in order for the justification of Article XX to be extended to a given measure, it must not only come under one or another of the particular exceptions - paragraphs (a) to (j) - listed under Article XX; it must also satisfy the requirements imposed by the opening clause of Article XX. We note that panels have in the past considered the specific paragraphs of Article XX before reviewing the applicability of the conditions contained in the chapeau. However, as the conditions contained in the introductory provision apply to any of the paragraphs of Article XX, it seems equally appropriate to analyse first the introductory provision of Article XX.(emphasis added)
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In United States - Gasoline, we enunciated the appropriate method for applying Article XX of the GATT 1994:
In order that the justifying protection of Article XX may be extended to it, the measure at issue must not only come under one or another of the particular exceptions -- paragraphs (a) to (j) -- listed under Article XX; it must also satisfy the requirements imposed by the opening clauses of Article XX. The analysis is, in other words, two-tiered: first, provisional justification by reason of characterization of the measure under XX(g); second, further appraisal of the same measure under the introductory clauses of Article XX.(emphasis added)
The sequence of steps indicated above in the analysis of a claim of justification under Article XX reflects, not inadvertence or random choice, but rather the fundamental structure and logic of Article XX. The Panel appears to suggest, albeit indirectly, that following the indicated sequence of steps, or the inverse thereof, does not make any difference. To the Panel, reversing the sequence set out in United States - Gasoline "seems equally appropriate." We do not agree.
The task of interpreting the chapeau so as to prevent the abuse or misuse of the specific exemptions provided for in Article XX is rendered very difficult, if indeed it remains possible at all, where the interpreter (like the Panel in this case) has not first identified and examined the specific exception threatened with abuse. The standards established in the chapeau are, moreover, necessarily broad in scope and reach: the prohibition of the application of a measure "in a manner which would constitute a means of arbitrary or unjustifiable discrimination between countries where the same conditions prevail" or "a disguised restriction on international trade."(emphasis added) When applied in a particular case, the actual contours and contents of these standards will vary as the kind of measure under examination varies. What is appropriately characterizable as "arbitrary discrimination" or "unjustifiable discrimination", or as a "disguised restriction on international trade" in respect of one category of measures, need not be so with respect to another group or type of measures. The standard of "arbitrary discrimination", for example, under the chapeau may be different for a measure that purports to be necessary to protect public morals than for one relating to the products of prison labour.
The consequences of the interpretative approach adopted by the Panel are apparent in its findings. The Panel formulated a broad standard and a test for appraising measures sought to be justified under the chapeau; it is a standard or a test that finds no basis either in the text of the chapeau or in that of either of the two specific exceptions claimed by the United States. The Panel, in effect, constructed an a priori test that purports to define a category of measures which, ratione materiae, fall outside the justifying protection of Article XX's chapeau. In the present case, the Panel found that the United States measure at stake fell within that class of excluded measures because Section 609 conditions access to the domestic shrimp market of the United States on the adoption by exporting countries of certain conservation policies prescribed by the United States. It appears to us, however, that conditioning access to a Member's domestic market on whether exporting Members comply with, or adopt, a policy or policies unilaterally prescribed by the importing Member may, to some degree, be a common aspect of measures falling within the scope of one or another of the exceptions (a) to (j) of Article XX. Paragraphs (a) to (j) comprise measures that are recognized as exceptions to substantive obligations established in the GATT 1994, because the domestic policies embodied in such measures have been recognized as important and legitimate in character. It is not necessary to assume that requiring from exporting countries compliance with, or adoption of, certain policies (although covered in principle by one or another of the exceptions) prescribed by the importing country, renders a measure a priori incapable of justification under Article XX. Such an interpretation renders most, if not all, of the specific exceptions of Article XX inutile, a result abhorrent to the principles of interpretation we are bound to apply.
We hold that the findings of the Panel quoted in paragraph 112 above, and the interpretative analysis embodied therein, constitute error in legal interpretation and accordingly reverse them.
Having reversed the Panel's legal conclusion that the United States measure at issue "is not within the scope of measures permitted under the chapeau of Article XX" , we believe that it is our duty and our responsibility to complete the legal analysis in this case in order to determine whether Section 609 qualifies for justification under Article XX. In doing this, we are fully aware of our jurisdiction and mandate under Article 17 of the DSU. We have found ourselves in similar situations on a number of occasions. Most recently, in European Communities - Measures Affecting the Importation of Certain Poultry Products, we stated:
In certain appeals, � the reversal of a panel's finding on a legal issue may require us to make a finding on a legal issue which was not addressed by the panel.
In that case, having reversed the panel's finding on Article 5.1(b) of the Agreement on Agriculture, we completed the legal analysis by making a finding on the consistency of the measure at issue with Article 5.5 of the Agreement on Agriculture. Similarly, in Canada - Certain Measures Concerning Periodicals, having reversed the panel's findings on the issue of "like products" under the first sentence of Article III:2 of the GATT 1994, we examined the consistency of the measure with the second sentence of Article III:2. And, in United States � Gasoline , having reversed the panel's findings on the first part of Article XX(g) of the GATT 1994, we completed the analysis of the terms of Article XX(g), and then examined the application of the measure at issue in that case under the chapeau of Article XX.
As in those previous cases, we believe it is our responsibility here to examine the claim by the United States for justification of Section 609 under Article XX in order properly to resolve this dispute between the parties. We do this, in part, recognizing that Article 3.7 of the DSU emphasizes that: "The aim of the dispute settlement mechanism is to secure a positive solution to a dispute." Fortunately, in the present case, as in the mentioned previous cases, we believe that the facts on the record of the panel proceedings permit us to undertake the completion of the analysis required to resolve this dispute.