What is the FMCSA Commercial Driver’s License Drug and Alcohol Clearinghouse?
The Clearinghouse is a secure online database that will give employers, FMCSA, State Driver Licensing Agencies, and State law enforcement personnel real-time information about CDL driver drug and alcohol program violations, thereby enhancing safety on our Nation’s roadways.
An act of Congress directed the Secretary of Transportation to establish the Clearinghouse.

When must I use the Clearinghouse? JANUARY 6, 2020: Authorized users will be required to complete the actions described in the Clearinghouse final rule. At this time, employers will be required to conduct both electronic queries and traditional manual inquiries with previous employers to meet the three-year timeframe, required by FMCSA’s drug and alcohol use testing program, for checking CDL driver violation histories. Drivers may also view their own records for information recorded on or after January 6, 2020.
JANUARY 6, 2023: Once three years of violation data are stored in the Clearinghouse, employers are no longer required to also request information from the driver’s previous FMCSA-regulated employers
under 391.23(e); an employer’s query of the Clearinghouse will satisfy that requirement.

How will the Clearinghouse improve highway safety?
  • Make it easier for employers to meet their pre-employment investigation and reporting obligations.

  • Make it more difficult for drivers to conceal their drug and alcohol program violations from current or prospective employers.

  • Provide roadside inspectors and other enforcement personnel with the means to ensure that drivers receive required evaluation and treatment before performing safety- sensitive functions, such as driving a commercial motor vehicle (CMV).

  • Make it easier for FMCSA to determine employer compliance with testing,
    investigation, and reporting requirements.

The Clearinghouse will contain information on all CDL driver drug and alcohol program violations.
These violations include:
  • Report for duty/remain on duty for safety-sensitive function with alcohol concentration of 0.04 or greater or while using any drug specified in the regulations (Part 40), other than those prescribed by a licensed medical practitioner.

  • Alcohol use while performing, or within four hours of performing, a safety-sensitive function

  • Alcohol use within eight hours of an accident, or until post-accident test, whichever occurs first

  • Test positive for use of specified drugs Refusing to submit to a required alcohol or drug


Report drug and alcohol violations and check that no current or prospective employee is prohibited from performing safety-sensitive functions, such as operating a CMV, due to a drug and alcohol program violation for which a driver has not successfully completed a Return-To-Duty (RTD) process.


View own record, provide consent to current or prospective employers to access details about any drug and alcohol program violations, and select a Substance Abuse Professional, if needed.


    Report verified positive drug test results and test refusals.


    Report RTD initial assessment and eligibility status for RTD testing.


    On behalf of an employer, report drug and alcohol program violations and perform driver
    queries as required.


    Query the Clearinghouse prior to completing licensing transactions.


Through our system you can schedule your CDL-DOT Physical with a Local Occupational Health providers Nationwide.


    Enforcement of the Clearinghouse begins January 6, 2020 and includes all CDL drivers, motor carrier employers, Medical Review Officers, Substance Abuse Professionals, HHS laboratories, and Third Party Administrators as required to register.

    Employers are required to run a full query on commercial motor vehicle drivers to whom they’ve offered a job as part of the pre-employment screening process. Queries are required annually on currently employed drivers.
    Employers are required to submit any discovered drug and alcohol testing Program violations into the FMCSA Clearinghouse database.

    You can Assign a Third Party Administrator such as Mid Atlantic to run your queries on your behalf

Contact Us

Have a question? Send us a message and we’ll get right back to you.