Corpora serves as a framework for the structure of the historical re-creation activities of the Society, and applies equally to all branches worldwide, regardless of corporate affiliation. The various Board-approved Policies of Society officers provide guidance for the operations of those offices. Kingdoms may follow custom or make law in areas where these policies are silent, as long as they remain consistent with the general approach embodied therein. They may also impose additional rules and requirements for branches, offices,and awards within their jurisdiction, but may not reduce or waive any specified requirement contained at a higher level in the Precedence of Law.
Corpora outlines (among other things) membership requirements for the SCA, titles and arms, the usage of (and compliance with) SCA policy and procedures, the organization of various branches of the SCA, the responsibilities of Royalty, Nobility and officers, and the role of religion within the Society. Corpora also includes the Rules of the List for various combat activities.
Individual Kingdoms may have their own laws and rules, but Corpora is the foundation; Kingdom laws cannot contradict Corpora.