According to the Colombian Constitution, the Constitutional Court must assess the constitutionality of all international treaties after signature and prior to ratification. As such, if the Court rules that the whole treaty or one of its clauses is unconstitutional, it cannot enter into force in its entirety.[1]<\/a> In 2019, the Colombian Constitutional Court issued judgments C-252[2]<\/a> and C-254,[3]<\/a> related to the constitutionality control of the BIT<\/span> signed with France in 2014 and of the FTA<\/span> signed with Israel in 2013, respectively.[4]<\/a><\/p>\n These two judgments have been regarded as landmark decisions[5]<\/a> for three main reasons. First, the Court considered that there were sufficient reasons to abandon the lenient standard of review that had characterized the constitutionality control carried out with regard to previous IIAs in favour of a stricter standard of review, assessing the treaties from the standpoint of reasonableness.[6]<\/a> Second, the Court used arbitral awards in order to understand the scope and content of each clause. Third, for the first time the Court conditioned the constitutionality of several provisions on the issuance of joint interpretative declarations that clarified their scope and content. However, the Court\u2019s methodology has raised different concerns,[7]<\/a> one of which was whether the joint interpretative declarations were suitable means under international law to address the Court\u2019s concerns of constitutionality.<\/p>\n The Constitutional Court considered in judgment C-252 ( France\u2013Colombia BIT) that several provisions of the treaty, first, admitted interpretations that were contrary to the Constitution and, in particular, to the principles of equality, legal certainty, and national sovereignty and, second, affected the competences of national authorities. Accordingly, the Court aimed, through joint interpretative declarations, to (i) prevent that an unjustifiable treatment to foreign investors was granted against national investors, (ii) clarify vague aspects of the FET<\/span> provision, and (iii) define the scope and content of expressions such as \u201cinter alia,\u201d \u201ctreatment,\u201d \u201cin like situations,\u201d \u201clegitimate expectations,\u201d and \u201cnecessary and proportional,\u201d[8]<\/a> which were included in the MFN<\/span>, FET, and indirect expropriation provisions of the BIT.[9]<\/a> Following the judgment, on August 5, 2020, France and Colombia signed the joint interpretative declarations; some of its most relevant provisions are as follows:<\/p>\n In the case of the Israel FTA, the Constitutional Court followed the same standard of review set by the judgment on the France\u2013Colombia BIT (C-252). It raised objections to particular provisions of the investment chapter by directly quoting some of its considerations put forward on judgment C-252 and requested both governments to make joint interpretative declarations. As a result of this judgment, Israel and Colombia agreed on a joint interpretative declaration negotiated during April and May 2020.<\/p>\n Paragraph 1 and 2 of this joint interpretation are analogous to paragraphs 1 and 6 of the joint interpretation on the France\u2013Colombia BIT, respectively.[11]<\/a> Moreover, the interpretation addresses the expression \u201creasonable expectations\u201d by establishing that:<\/p>\n The Court\u2019s decision to request joint declarative interpretations can be explained by the fact that IIAs are encrypted. The term \u201cencryption\u201d has been previously employed to describe the \u201cdialectical relationship of technicisms and vagueness\u201d that characterizes the international investment law, specifically IIA<\/span> and awards and which precludes public participation and public accountability.[13]<\/a><\/p>\n Nonetheless, it is doubtful whether the interpretative declarations effectively decrypt the treaties and fully resolve some of the concerns put forward by the Constitutional Court. As an example, paragraph 1 of the interpretation on the France\u2013Colombia BIT, which aims to prevent an \u201cunjustifiable\u201d favourable treatment to foreign investors over national investors, does not, in fact, resolve the issue. The term \u201cunjustifiable\u201d was defined neither by judgment C-252 nor by the declarative interpretation. However, the BIT itself, which is now part of the Colombian legal system, could be considered both by national authorities and by arbitral tribunals as a justification for treating foreign investors more favourably than national investors.<\/p>\n Other provisions do not improve the ambiguity problem and, in some cases, worsen it. For instance, paragraph 4 of the interpretation on the Colombia\u2013France BIT is circular, as it defines \u201clegitimate expectations\u201d by reference to \u201creasonable expectations.\u201d Similarly, paragraph 3 of the interpretation on the Israel FTA fails to properly define \u201creasonable expectations\u201d since it includes the expression \u201csuch as\u201d before mentioning state conduct that would create said expectations. This expression opens the possibility that other state actions not mentioned in the joint interpretation may be considered to generate reasonable expectations.<\/p>\n Moreover, given the exact wording of the Court\u2019s conditions on the treaties, some concerns were raised regarding the nature of the underlying statements that were requested by the Constitutional Court. Specifically, these relate to whether some of the requests made by the Court and included in the joint interpretative declarations were substantial changes to the treaties amounting to a real amendment and not mere interpretations of the legal instrument. In the scenario of an amendment, the treaties would require a renegotiation of their terms[14]<\/a> or even to reservations[15]<\/a> notwithstanding their bilateral nature.<\/p>\n While the 2011 ILC Guide to Practice on Reservations states that the interpretation of a bilateral treaty by one party that is accepted by the other party \u201cconstitutes an authentic interpretation of that treaty,\u201d[16]<\/a> the 2013 ILC Draft Conclusions on Subsequent Agreements and Subsequent Practice in Relation to the Interpretation of Treaties states that subsequent agreements on the understanding by the parties as to the meaning of the treaty are \u201cauthentic means of interpretation\u201d [17]<\/a> that do not \u201cnecessarily possess a conclusive, or legally binding, effect,\u201d[18]<\/a> in opposition to an \u201cauthentic interpretation.\u201d[19]<\/a> This makes the distinction between an interpretation and an amendment of the treaty crucial. The answer to this question can produce effects at the international level, given that tribunals would give the declarations a different weight depending on their nature. Furthermore, it will have an effect at the domestic constitutional level, given that, if the joint declaration constitutes an amendment, it would have to undergo the same ratification process as the treaties. It is worth recalling that the acceptance by arbitral tribunals of the interpretation of the Free Trade Commission of NAFTA<\/span> aimed at limiting the reach of the MST depended mostly on whether it was deemed as a reasonable interpretation or as an amendment, in which case it was largely ignored.[20]<\/a><\/p>\n From a constitutional and an international standpoint, it seems that the joint interpretative declarations on both treaties are not sufficient to overcome the encryption and uncertainty surrounding IIL. While the Constitutional Court was right to pursue a stricter constitutionality review of the treaties discussed here, the most suitable means to implement it are still to be found.<\/p>\n Carolina Olarte-Bacares <\/strong>is Dean of the Faculty of Law \u2013 Pontificia Universidad Javeriana (Bogot\u00e1, Colombia). She holds a Ph.D. degree in law from the Paris 1 Panth\u00e9on-Sorbonne University.<\/p>\n Enrique Prieto-Rios <\/strong>is Associate Professor, Director of the Research Group on International Law and Research Director of the Faculty of Law at Universidad del Rosario (Bogot\u00e1, Colombia). He holds a Ph.D. degree in law from Birkbeck \u2013 University of London.<\/p>\n Juan P. Pont\u00f3n-Serra <\/strong>is a Junior Researcher at the Faculty of Law at Universidad del Rosario. He holds a postgraduate degree in international law from the Paris 1 Panth\u00e9on-Sorbonne University.<\/p>\n [1]<\/a> Constituci\u00f3n Pol\u00edtica de Colombia (1991) art. 141:10; the Spanish original of the Constitution can be found at http:\/\/www.secretariasenado.gov.co\/senado\/basedoc\/constitucion_politica_1991.html<\/a>.<\/p>\n [2]<\/a> For a more detailed analysis of judgment C-252, see Ricaurte, F.S. (2019). Judgment C-252 of 2019 of the Constitutional Court of Colombia: Change of precedent on the control of BITs. Investment Treaty News<\/em>. https:\/\/rspace.IISD<\/span><\/span><\/span>.org\/ITN<\/span>\/2019\/09\/19\/judgment-c-252-of-2019-of-the-constitutional-court-of-colombia-change-of-precedent-on-the-control-of-bits-federico-suarez-ricaurte\/<\/a>; the Spanish original of the judgment can be found at: https:\/\/www.corteconstitucional.gov.co\/relatoria\/2019\/c-252-19.htm<\/a>.<\/p>\n [3]<\/a> The Spanish original of judgment C-254 can be found at: https:\/\/www.corteconstitucional.gov.co\/relatoria\/2019\/C-254-19.htm<\/a><\/p>\n [4]<\/a> Constitutional Court of Colombia, Judgment C-252 of 2019 (Reporting Judge: Carlos Bernal Pulido June 6, 2019) https:\/\/www.corteconstitucional.gov.co\/relatoria\/2019\/c-252-19.htm<\/a>; Constitutional Court of Colombia, Judgment C-254 of 2019 (Reporting Judge: Jos\u00e9 Fernando Reyes Cuartas June 6, 2019). https:\/\/www.corteconstitucional.gov.co\/relatoria\/2019\/C-254-19.htm<\/a><\/p>\n [5]<\/a> Tamayo-Alvarez, R. (2020). Constitutionality of the Colombia-France bilateral investment treaty. American Journal of International Law,<\/em> 114<\/em>(3). 475.<\/p>\n [6]<\/a> According to judgment C-252, this implies analyzing (i) the legitimacy of the goals of the treaty and its provisions, and (ii) the suitability of the treaty measures to achieve these goals (Judgment C-252 of 2019, para. 65).<\/p>\n [7]<\/a> Alejandro Linares Cantillo, Clarification of the vote and partial dissenting vote in Judgment C-252\/19 (June 6, 2019); Diana Fajardo Rivera, Partial dissenting opinion in Judgment C-252\/19 (June 6, 2019); Zuleta, E. & Rinc\u00f3n, M.C. (2019, July 4). Colombia\u2019s Constitutional Court conditions ratification of the Colombia\u2013France BIT to the interpretation of several provisions of the treaty. Kluwer Arbitration Blog<\/em>. http:\/\/arbitrationblog.kluwerarbitration.com\/2019\/07\/04\/colombias-constitutional-court-conditions-ratification-of-the-colombia-france-bit-to-the-interpretation-of-several-provisions-of-the-treaty\/<\/a>; Tamayo-Alvarez, supra<\/em> note 5, at 471\u2013478.<\/p>\n [8]<\/a> Judgment C-252, supra <\/em>note 6.<\/p>\n [9]<\/a> Agreement between the Government of the Republic of Colombia and the Government of the French Republic for the Promotion and Protection of Investments<\/em> (2014); the Spanish original of the BIT can be found at: http:\/\/apw.cancilleria.gov.co\/Tratados\/adjuntosTratados\/6F5A7_FRANCIA_B-ACUERDOFOMENTOYPROTECCIONINVERSIONES2014-TEXTO.PDF<\/a><\/p>\n [10]<\/a> Joint Interpretative Declaration between the Republic of Colombia and the French Republic Regarding the Agreement for the Promotion and Protection of Investments between Colombia and France, <\/em>Signed on July 14th, 2014 (2020) (unofficial translation from the Spanish original, which can be found at: http:\/\/apw.cancilleria.gov.co\/Tratados\/adjuntosTratados\/17523_DECLARACI%c3%93N%20INTERPRETATIVA%20CONJUNTA%20APPRI%20FRANCIA.PDF<\/a>).<\/p>\n [11]<\/a> Joint Interpretative Declaration between the Republic of Colombia and the State of Israel Regarding the Free Trade Agreement between Colombia and Israel, Signed on September 30th, 2013<\/em> (2020) (unofficial translation from the Spanish original, which can be found at: http:\/\/apw.cancilleria.gov.co\/Tratados\/adjuntosTratados\/C7994_DECLARACIO%cc%81N%20INTERPRETATIVA%20CONJUNTA%20AL%20TLC%20CON%20ISRAEL.PDF<\/a>).<\/p>\n [12]<\/a> Joint interpretative declaration, supra <\/em>note 10, para. 3.<\/p>\n [13]<\/a> Prieto-R\u00edos, E. (2018). Encrypted international investment law in the age of neo-colonialism. In R. San\u00edn-Restrepo (Ed.), Decrypting power<\/em>. Rowman & Littlefield Publishers.<\/p>\n [14]<\/a> Zuleta & Rinc\u00f3n, supra <\/em>note 7.<\/p>\n [15]<\/a> Linares Cantillo, supra <\/em>note 7.<\/p>\n [16]<\/a> General Assembly. (2011). Reservations to Treaties. Text and Title of the Draft Guidelines Constituting the Guide to Practice on Reservations to Treaties, as Finalized by the Working Group on Reservations to Treaties from 26 to 29 April, and on 4, 5, 6, 10, 11, 12, 17 and 18 May 2011, A\/CN.4\/L.779 \u00a7 (2011) Guideline 1.6.3.<\/em><\/p>\n [17]<\/a> General Assembly. (2013b). Subsequent agreement and subsequent practice in relation to the interpretation of treaties. Text of draft conclusions 1\u20135 provisionally adopted by the drafting committee at the Sixty-Fifth Session of the International Law Commission. 6 May\u20137 June and 8 July\u20139 August 2013<\/em>. A\/CN.4\/L.813 \u00a7 (2013) Draft conclusion 4.<\/p>\n [18]<\/a> General Assembly. (2013a). Report of the International Law Commission. Sixty-Fifth Session. Subsequent Agreement and Subsequent Practice in Relation to the Interpretation of Treaties<\/em>, 22.<\/p>\n [19]<\/a> Gaukrodger, D. (2016). The legal framework applicable to joint interpretive agreements of investment treaties<\/em>. OECD<\/span> Working Papers on International Investment. https:\/\/doi.org\/10.1787\/5jm3xgt6f29w-en<\/a><\/p>\nThe joint interpretative declarations<\/h2>\n
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The joint interpretative declarations in light of the judgments C-252 and C-254 and of public international law: Amendments rather than interpretations?<\/h2>\n
Conclusion<\/h2>\n
\nAuthors<\/h3>\n
\nNotes<\/h3>\n