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with the norm, regardless of when precisely the jus cogens norm
emerged.
However, this raises a challenging issue, namely, the
consequences and effects that flow from the presence of conflict
with jus cogens norms. The characterization of the effects of jus
cogens has been described as “the greater prize than identifying
the norm itself.”196 As Dire Tladi, International Law Commission
(Commission) Special Rapporteur on Peremptory Norms of
General International Law (Jus Cogens), noted in a 2017 report,
invalidity of a treaty is often considered “the primary, or even
sole, consequence of the jus cogens status of a norm.”197 At first
glance, Articles 53 and 64 of VCLT present a problem for the
validity of ICERD in light of Article 1(3) and its potential
inconsistency with the jus cogens prohibition against racial
discrimination.198
However, there is an alternative to invaliding a treaty
that conflicts with a jus cogens norm. In the 2017 report, Special
Rapporteur Tladi explains that the requirement to resort to the
“draconian” outcome of treaty invalidity199 when a conflict with
jus cogens norms seemingly arises should—and indeed generally
can—be avoided by reading treaty provisions in light of jus
cogens norms. Due to the “fundamental principle” that “treaties
are binding on the parties and must be performed in good
faith,”200 known as pacta sunt servanda, the validity of a treaty,
and not its invalidity, should be strived for when determining if
196 DANIEL COSTELLOE, LEGAL CONSEQUENCES OF PEREMPTORY
NORMS IN INTERNATIONAL LAW 15 (2017), quoted in Dire Tladi (Special
Rapporteur), Third Report on Peremptory Norms of General International Law
(Jus Cogens), ¶ 20, U.N. Doc. A/CN.4/714 (Feb. 12, 2018) [hereinafter Special
Rapporteur, Third Report on Jus Cogens].
197 Special Rapporteur, Third Report on Jus Cogens, supra note 196, ¶
30. See also Kyoj Kawasaki, A Brief Note on the Legal Effects of Jus Cogens in
International Law, 34 HITOTSUBASHI J. L. & POL. 27 (2006); HUGH THIRLWAY,
THE SOURCES OF INTERNATIONAL LAW (2014).
198 See VCLT, supra note 101, art. 44(5) (stating that one key
differentiation is that severability of the relevant provision is not possible for
cases falling under Article 53). See generally Special Rapporteur, Third Report
on Jus Cogens, supra note 196, ¶¶ 30–54.
199 Special Rapporteur, Third Report on Jus Cogens, supra note 196, ¶¶
55–59.
200 Documents of the Second Part of the Seventeenth Session and of the
Eighteenth Session Including the Reports of the Commission to the General
Assembly,
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