The defense acquisition certification standards are posted and maintained on the DAU interactive catalog at http://icatalog.dau.mil/onlinecatalog/CareerLvl.aspx. Each of the Acquisition Career Fields (ACFs) has a unique combination of education, training and experience standards which must be met to achieve Level I, II or III acquisition certification in the respective specific ACF. These standards are reviewed by the functional communities, DAU and the service Director of Acquisition Career Management (DACM) offices throughout the year. Changes to the standards are generally inserted at the beginning of the new fiscal year, although there are exceptions to this schedule. DAU course descriptions, course prerequisites, and other pertinent information such as equivalent courses, predecessor courses, and career field descriptions are also found in the interactive DAU Catalog at http://icatalog.dau.mil/.