Short for Evidence-Based Design Accreditation and Certification, this latest acronym comes courtesy of the Center for Health Design (CHD), a California nonprofit dedicated to advancing the use of evidence-based design practices in healthcare architecture. The accreditation test launched in a beta phase in February and was opened to the general public in April. One of its primary goals is to formalize what evidence-based design entails, in order to bolster its legitimacy and galvanize practitioners around a shared definition of the term.
This article by Elizabeth Evitts Dickinson from Architect Magazine in 2009 explores the new certification.