The relationship between African Union (AU) and Regional Economic Communities (recs) frameworks, especially as it relates to the application of the principle of subsidiarity to intervention that aims to ensure strict adherence to democratic standards, is at the heart of this article. Although there exists a 2007 ‘Draft Protocol on the Relations Between the African Union and the Regional Economic Communities’, it is yet to be adopted, and more importantly, its provisions are ambiguous. The same problem of ambiguity applies to the 2008 ‘Memorandum of Understanding (mou) on Cooperation in the Area of Peace and Security Between the African Union, The Regional Economic Communities and the Coordinating Mechanism of The Regional Standby Brigades of Eastern Africa and Northern Africa’. The lack of a consistent approach to situations in Burundi, The Gambia and Zambia, has since raised the question of subsidiarity, or to put it more specifically, the vague articulation of the concept in the AU. In redressing this problem, the article provides some normative suggestions on how to ensure the effective application of the principle of subsidiarity in advancing democracy and good governance in Africa.