The Vienna Convention on Succession of States in respect of Treaties is an international treaty promulgated in 1978 to set rules on succession of states. It was adopted partly in response to the "profound transformation of the international community brought about by the decolonization process".
Among its provisions it establishes that newly independent post-colonial states are subject to the 'clean slate' rule, such that the new state does not inherit the treaty obligations of the colonial power (article 16).