The Energy Charter Treaty (ECT) in its Part III which regulates standards of protection guaranteed to foreign investors by the ECT States members, together with the Article 24 of the ECT, constitutes a kind of autonomous investment treatment within the ECT. The ECT provides for a very broad spectrum of standards of protection: fair and equitable treatment; most constant protection and security; prohibition of unreasonable or discriminatory measures; „umbrella clause”; national treatment; most favoured-nation standard and effective means to assert the claims. It can be said that at the time of its drafting the ECT enclosed all standards of protection as recognized in BITs and NAFTA. There have been more than 100 publicly known investment arbitration cases where the ECT was invoked, more than 30 of which concluded by arbitral awards. This comprehensive arbitral practice strongly influences the practice applying other IIAs and vice versa.

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能源宪章条约–投资保护标准

《能源宪章条约》（ECT）的第三部分规范了ECT成员国向外国投资者保证的保护标准，以及ECT的第24条，构成了ECT内部的一种自主投资待遇。ECT提供了非常广泛的保护标准：公平和公正的待遇；最持久的保护和安全；禁止采取不合理或歧视性措施；“雨伞条款”；国民待遇；主张权利的最惠国标准和有效手段。可以说，在起草ECT时，它包含了BITs和NAFTA认可的所有保护标准。调用ECT的案例有100多个，其中有30多个由仲裁裁决结案。