Jus cogens are higher peremptory norms beyond reproach by nation-states in the practice of international affairs. This article examines how a regional set of norms can be reconstituted as a regional jus cogens, and assist in accomplishing certain political tasks that are deemed acceptable within a specific time-period by a group of nation-states. Coiled in this positivistic pragmatic construction, the implications for the existence and practice of regional jus cogens is considered; with notable attention on its effects on sovereign equality and the promotion of differential treatment in international affairs.[Winner of the Society for the Study of Social Problems’ Alfred R. Lindesmith Award]