Frequently Asked Questions




Missouri Credentialing Board
428 E. Capitol, 2nd Floor Jefferson City, Missouri 65101
573-616-2300, fax: 573-616-2303


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Department of Transportation Substance Abuse Professional

    Click here to register to become a Department of Transportation Substance Abuse Professional. When registering for the training and exam, please include “MSAPCB” in the referral code box.


The Missouri Credentialing Board has changed the names of several of our credentials.  The changes reflect our effort to remove the stigmatizing label of the term “abuse” from our treatment vocabulary.  MCB understands the importance of careful use of language as an essential component to recovery. 

The changes are as follows:

  1. RASAC I to MAADC I (Missouri Associate Alcohol Drug Counselor I)
  2. RASAC II to MAADC II (Missouri Associate Alcohol Drug Counselor II)
  3. RSAP to RADC (Registered Alcohol Drug Counselor)
  4. RSAP-P to RADC-P (Registered Alcohol Drug Counselor – Provisional)
  5. MSAPA to MPS (Missouri Prevention Specialist)
  6. MACSAPP to MAPS (Missouri Advanced Prevention Specialist)

MCB will be mailing updated certificates.

Professional Search

By clicking on the link below, you will be able to lookup a professional by last name or credential number to verify an active and valid credential.


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The Missouri Credentialing Board (MCB) is a not-for-profit organization established in 1977 from the (then) Missouri Association of Alcoholism Counselors for the purpose of providing a recognized credential for qualified professionals working in the field of substance use disorders.
MCB is a proud member of IC&RC, which protects the public by establishing standards and facilitating reciprocity for the credentialing of addiction-related professionals.  The largest organization of its kind, IC&RC represents more than 40,000 professionals worldwide. The IC&RC web address is

The MCB operates with a minimum of twelve board members, five of whom are nominated and appointed representatives, one from five established regions in the State. In addition, the MCB currently employs two full time staff employees.