 With the application, candidates submit documentation of 120 hours of formal Early childhood education training in the appropriate age group, 480 hours of professional experience in the appropriate age group, formal observation by a Council for Professional Recognition certified Professional Development Specialist (PDS), computer-based CDA examination, and a statement of ethical conduct.Training can be completed through various methods such as sponsored training programs (Head Start), four year colleges, community colleges, and various resource and referral agencies.Once the Council for Professional Recognition has reviewed the application, a PDS will conduct a Verification Visit.