The Commission on Dental Competency Assessments (formerly the North East Regional Board of Dental Examiners) is one of five examination agencies for dentists in the United States. The other examination agencies are the Western Regional Examining Board, the Central Regional Dental Testing Service, the Council of Interstate Testing Agencies, Inc. and the Southern Regional Testing Agency. These were organized to better standardize clinical exams for licensure.
On January 9, 2015, the NERB became the Commission on Dental Competency Assessments (CDCA).
NERB, now referred to as the CDCA, administers the ADEX dental and dental hygiene exam.
Member states that help create the exam are Connecticut, District of Columbia, Illinois, Indiana, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, and West Virginia. In 2011 Wisconsin and Oregon officially joined.
Other states that accept the exam for licensure include Kentucky, Nebraska, Missouri, Kansas, Tennessee, and Utah.
As of April 20, 2009, in addition to the NERB states above, the following states also accept the NERB: Colorado, Hawaii, Idaho, Iowa, Kansas, Louisiana, Minnesota, Missouri, Montana, Nebraska, Nevada, New Mexico, Oregon, South Carolina, Texas, Utah, Virginia, Washington, Wisconsin and Wyoming.