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Developments in Maritime Delimitation Law over the Last Decade: Emerging Principles in Modern Case Law

Published online by Cambridge University Press:  16 November 2020

YUNUS EMRE ACIKGONUL  and
EDWARD R. LUCAS
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Abstract

The delimitation of maritime boundaries is a complex and multifaceted process with legal and technical aspects. The process involves the determination of a maritime boundary in a situation where two or more states are confronted with overlapping titles. In the absence of any precise rules in treaty law and established customary rules based on state practice, it has been left to the jurisprudence of international courts and tribunals to develop the applicable law of maritime boundary delimitation. This article provides a detailed examination of the complex and multifaceted processes involved in maritime delimitation law. In doing so, it highlights recent developments in the field, with an emphasis on the emerging principles of “non-cut-off” and “non-distortion.” The article also analyzes the crystalizing rules on delimitation beyond 200 nautical miles and questions the applicability of these rules to the ongoing maritime boundary dispute between Canada and the United States in the Beaufort Sea.

Résumé

Résumé

La délimitation des frontières maritimes est un processus complexe et multiforme comportant des aspects juridiques et techniques. Le processus implique la détermination d’une frontière maritime dans une situation où deux ou plusieurs États sont confrontés à des titres qui se chevauchent. En l’absence de règles conventionnelles précises et de règles coutumières établies fondées sur la pratique des États, c’est à la jurisprudence de cours et de tribunaux internationaux qu’il est revenu d’élaborer le droit applicable à la délimitation des frontières maritimes. Cet article fournit un examen détaillé des processus complexes et multiformes impliqués dans le droit de la délimitation maritime. Ce faisant, il met en évidence les développements récents dans le domaine, en mettant l’accent sur les principes émergents de “non-amputation” et de “non-distorsion.” L’article analyse également les règles cristallisantes de la délimitation au-delà des 200 milles marins et s’interroge sur l’applicabilité éventuelle de ces règles au différend entre le Canada et les États-Unis concernant leur frontière maritime dans la mer de Beaufort.

Keywords

Beaufort Seaequitable principlesextended continental shelflaw of the seamaritime boundary delimitationnatural prolongationnon-cut-offnon-distortionproportionalityDélimitation des frontières maritimesdroit de la mermer de Beaufortnon-amputationnon-distorsionplateau continental étenduprincipes équitablesprolongation naturelleproportionnalité
Type
Articles
Information
Canadian Yearbook of International Law/Annuaire canadien de droit international , Volume 57 , November 2020 , pp. 156 - 222
Copyright
© The Canadian Yearbook of International Law/Annuaire canadien de droit international 2020

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Footnotes

The authors would like to thank the members of the United States Department of State and Global Affairs Canada for their helpful insights and perspectives and extend special gratitude to Professor Emeritus Armand de Mestral of McGill University for his valuable support and encouragement throughout.

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48 1969 North Sea, supra note 14 at para 85. The ICJ found that Germany had not ratified the 1958 Convention on the Continental Shelf and that its provisions were not applicable in this case (at paras 25–28). The court further held that art 6 of the convention had not attained customary law status (at para 69).

49 1982 Tunisia v Libya, supra note 31 at para 133. In the special agreement, the parties asked the court to declare the principles and rules of international law that may be applied for the delimitation, taking into account equitable principles and relevant circumstances as well as the then “recent trends” recognized at the Third Conference on the Law of the Sea (at para 2).

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51 2012 Bangladesh v Myanmar, supra note 26 at para 235.

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58 Case law suggests that there is no fixed list of “relevant circumstances” that might require adjustment of a provisional equidistance line. See 1969 North Sea, supra note 14 at para 101; 1982 Tunisia v Libya, supra note 31 at para 76; 1984 Gulf of Maine, supra note 39 at para 112.

59 1982 Tunisia v Libya, supra note 31 at para 132.

60 Ibid at para 70.

61 1969 North Sea, supra note 14 at para 96.

62 Cottier, supra note 5 at 527.

63 Fietta & Cleverly, supra note 22 at 27.

64 2014 Bangladesh v India, supra note 52 at para 279.

65 Aegean Sea Continental Shelf (Greece v Turkey), Judgment, [1978] ICJ Rep 3 at para 86.

66 1909 Grisbådarna, supra note 9.

67 1982 Tunisia v Libya, supra note 31; 1984 Gulf of Maine, supra note 39.

68 2009 Romania v Ukraine, supra note 8 at para 99.

69 1985 Libya v Malta, supra note 32 at paras 27, 61.

70 1982 Tunisia v Libya, supra note 31 at para 73.

71 2009 Romania v Ukraine, supra note 8 at para 77.

72 Arbitration Tribunal for the Delimitation of the Maritime Boundary between Guinea and Guinea-Bissau, Award, 14 February 1985, (1986) 25 ILM 290 at para 119 [1985 Guinea v Guinea-Bissau].

73 Acikgonul, supra note 41 at 176, 181–82.

74 1969 North Sea, supra note 14 at para 101; 1982 Tunisia v Libya, supra note 31 at para 76; 1984 Gulf of Maine, supra note 39 at para 112.

75 Fietta & Cleverly, supra note 22 at 67.

76 Delimitation of the Maritime Areas between France and Canada (St Pierre and Miquelon Islands), Judgment, 10 June 1992, (1992) 31 ILM 1149 at para 24.

77 1984 Gulf of Maine, supra note 39, Separate Opinion of Judge Schwebel.

78 1985 Libya v Malta, supra note 32 at para 47.

79 Malcolm D Evans, “Relevant Circumstances” in Oude Elferink, Henriksen & Veierud Busch, supra note 2, 222 at 260.

80 Territorial and Maritime Dispute (Nicaragua v Colombia), Judgment, [2012] ICJ Rep 624 at paras 212–16, 229, 232, 237 [2012 Nicaragua v Colombia].

81 Evans, supra note 54 at 59.

82 2009 Romania v Ukraine, supra note 8 at para 213: 2014 Bangladesh v India, supra note 52 at para 494.

83 2012 Bangladesh v Myanmar, supra note 26 at para 235.

84 Ibid at para 317.

85 2014 Bangladesh v India, supra note 52 at para 410.

86 2017 Ghana v Côte d’Ivoire, supra note 53 at para 452.

87 Arbitration between the Republic of Croatia and the Republic of Slovenia (Croatia v Slovenia), PCA Case no 2012-04 (2017) at paras 1013–14 [2017 Croatia v Slovenia].

88 Acikgonul, supra note 41 at 178.

89 Fietta & Cleverly, supra note 22 at 67–68.

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104 Ibid at paras 215, 232, 237.

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106 Ibid at para 242.

107 Ibid at para 247.

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111 Maritime Dispute (Peru v Chile), Judgment, [2014] ICJ Rep 3 at para 193 [2014 Peru v Chile].

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115 Ibid at paras 495–97.

116 2017 Croatia v Slovenia, supra note 87 at para 1001.

117 2017 Ghana v Côte d’Ivoire, supra note 53 at paras 533–37.

118 2006 Barbados v Trinidad and Tobago, supra note 24 at para 328; 1993 Jan Mayen, supra note 40 at para 69.

119 2009 Romania v Ukraine, supra note 8 at para 212.

120 Cottier, supra note 5 at 555.

121 Lucie Delabie, “The Role of Equity, Equitable Principles, and the Equitable Solution in Maritime Delimitation” in Oude Elferink, Henriksen & Veierud Busch, supra note 2, 145 at 170.

122 Cottier, supra note 5 at 554.

123 2009 Romania v Ukraine, supra note 8 at para 213.

124 Ibid.

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129 1969 North Sea, supra note 14 at para 8; 1985 Guinea v Guinea-Bissau, supra note 72 at para 104.

130 See Acikgonul, supra note 128 at 55–64.

131 2009 Romania v Ukraine, supra note 8 at paras 77–78; 2012 Nicaragua v Colombia, supra note 80 at para 141.

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134 2014 Bangladesh v India, supra note 52 at paras 404–05.

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139 1969 North Sea, supra note 14 at para 8.

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141 2012 Bangladesh v Myanmar, supra note 26 at paras 291–93.

142 Ibid at para 325.

143 Ibid at paras 297, 323–24, 329.

144 2012 Nicaragua v Colombia, supra note 80 at para 216.

145 Ibid at paras 215, 232.

146 Ibid at paras 235–36.

147 Ibid at para 230.

148 2014 Bangladesh v India, supra note 52 at paras 402, 404.

149 Ibid at para 417.

150 Ibid at paras 418–21.

151 Ibid at para 419.

152 Ibid, Appendix at para 36.

153 Fietta & Cleverly, supra note 22 at 568.

154 2017 Croatia v Slovenia, supra note 87 at para 1008.

155 2006 Barbados v Trinidad and Tobago, supra note 24 at para 232.

156 2017 Croatia v Slovenia, supra note 87 at paras 1010–14.

157 Ibid at paras 1006, 1012, 1014.

158 2017 Ghana v Côte d’Ivoire, supra note 53 at para 427.

159 Ibid at para 424.

160 Ibid at para 425.

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162 Namely, 2012 Bangladesh v Myanmar, 2012 Nicaragua v Colombia, 2014 Bangladesh v India, and 2017 Croatia v Slovenia.

163 Acikgonul, supra note 128 at 66.

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177 Ibid at para 317.

178 Ibid at para 151.

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186 1969 North Sea, supra note 14 at para 91.

187 2017 Croatia v Slovenia, supra note 87 at para 1009.

188 Ibid at paras 1010, 1012.

189 Counter-Memorial of the Republic of Côte d’Ivoire (Ghana v Côte d’Ivoire), ITLOS Case no 23 (2016) at paras 7.45–7.47.

190 2017 Croatia v Slovenia, supra note 87 at para 1011.

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200 Evans, supra note 54 at 251.

201 Fietta & Cleverly, supra note 22 at 52. See also 1993 Jan Mayen, supra note 40 at para 48; 2001 Qatar v Bahrain, supra note 40 at para 201.

202 Evans, supra note 54 at 47.

203 Cottier, supra note 5 at 635.

204 1969 North Sea, supra note 14 at para 85.

205 2007 Guyana v Suriname, supra note 33 at para 335.

206 2009 Romania v Ukraine, supra note 8 at paras 102–03.

207 2014 Peru v Chile, supra note 111 at para 180, citing 2009 Romania v Ukraine, supra note 8 at paras 115–22, 2012 Nicaragua v Colombia, supra note 80 at paras 190–93, and 2017 Croatia v Slovenia, supra note 87 at para 999.

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211 2012 Nicaragua v Colombia, supra note 80 at para 190.

212 2014 Peru v Chile, supra note 111 at para 180.

213 2017 Ghana v Côte d’Ivoire, supra note 53 at para 284.

214 Constantinos Yiallourides & Elizabeth Rose Donnelly, “Part II: Analysis of Dispute Concerning Delimitation of the Maritime Boundary between Ghana and Côte d’Ivoire in the Atlantic Ocean” (20 October 2017), online: EJIL Talk! <www.ejiltalk.org/part-ii-analysis-of-dispute-concerning-delimitation-of-the-maritime-boundary-between-ghana-and-cote-divoire-in-the-atlantic-ocean/>.

215 2006 Barbados v Trinidad and Tobago, supra note 24 at paras 242, 306.

216 2009 Romania v Ukraine, supra note 8 at para 116.

217 2014 Bangladesh v India, supra note 52 at para 343.

218 Donald McRae, “The Applicable Law” in Oude Elferink, Henriksen & Veierud Busch, supra note 2, 92 at 115.

219 Ibid at 110.

220 Ibid.

221 Evans, supra note 54 at 62.

222 1969 North Sea, supra note 14 at para 93.

223 1982 Tunisia v Libya, supra note 31 at para 132.

224 2012 Bangladesh v Myanmar, supra note 26 at para 435.

225 Ibid at para 437.

226 Ibid at para 455.

227 Guðmundsdóttir, Helga, The Unnatural Life Cycle of Natural Prolongation in the Delimitation of the Continental Shelf (Magister Juris dissertation, University of Iceland, 2015) [unpublished] at 29, 56–57 Google Scholar; 2012 Bangladesh v Myanmar, supra note 26 at para 361.

228 2014 Bangladesh v India, supra note 52 at para 457.

229 Ibid at para 465.

230 2017 Ghana v Côte d’Ivoire, supra note 53 at paras 526–27.

231 Fietta & Cleverly, supra note 22 at 611, 616.

232 UNCLOS, supra note 20, art 76(1).

233 Fietta & Cleverly, supra note 22 at 578–79.

234 2009 Romania v Ukraine, supra note 8 at para 137.

235 Ibid at para 117.

236 Ibid at para 149.

237 2012 Bangladesh v Myanmar, supra note 26 at paras 264–65.

238 2012 Nicaragua v Colombia, supra note 80 at paras 201–03.

239 Fietta & Cleverly, supra note 22 at 568.

240 Coalter G Lathrop, “The Provisional Equidistance Line” in Oude Elferink, Henriksen & Veierud Busch, supra note 2, 200 at 211.

241 Davor Vidas et al, “The Delimitation of the Territorial Sea, the Continental Shelf, and the EEZ” in Oude Elferink, Henriksen & Veierud Busch, supra note 2, 33 at 57.

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243 Lathrop, supra note 240 at 206.

244 Fietta & Cleverly, supra note 22 at 578.

245 2014 Bangladesh v India, supra note 52 at para 339.

246 2012 Nicaragua v Colombia, supra note 80 at para 196.

247 The ICJ provided that it is “the terrestrial territorial situation that must be taken as starting point for the determination of the maritime rights of a coastal State. In accordance with Article 121, paragraph 2, of the 1982 Convention on the Law of the Sea, which reflects customary international law, islands, regardless of their size, in this respect enjoy the same status, and therefore generate the same maritime rights, as other land territory.” 2001 Qatar v Bahrain, supra note 40 at para 185.

248 David Anderson, “Islands and Rocks in the Modern Law of the Sea” in Nordquist et al, supra note 195, 307 at 316.

249 Evans, supra note 54 at 251.

250 Convention between Great Britain and Russia, 28 February 1825, 75 Cons TS 95, reprinted in Great Britain, British and Foreign State Papers, vol 12 (1824–25) (London: James Ridgway and Sons, 1846) at 38–43 (entered into force 9 April 1825).

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