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['Drug and Alcohol Testing - DOT']
['Drug and Alcohol Clearinghouse - Motor Carrier', 'Drug and alcohol recordkeeping - Motor Carrier', 'Drug and alcohol policy - Motor Carrier', 'Alcohol testing - Motor Carrier', 'Drug testing - Motor Carrier']
02/24/2026
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InstituteDrug and alcohol policy - Motor CarrierEnglishFleet SafetyIn Depth Sub Topics (Level 4)Drug and Alcohol Testing - DOTDrug testing - Motor CarrierFocus AreaUSAAlcohol testing - Motor CarrierDrug and alcohol recordkeeping - Motor CarrierAnalysisTransportationDrug and Alcohol Clearinghouse - Motor Carrier
Downgrades of CDLs/CLPs
['Drug and Alcohol Testing - DOT']

- SDLAs have access to the Clearinghouse and will use the information to disqualify a driver from holding a CDL or CLP.
- Roadside inspection personnel can see a prohibited status in the Clearinghouse to place a driver out of service.
- Traffic enforcement will be able to see a downgraded license on the driving record that is the result of an unresolved violation in the Clearinghouse.
State driver’s licensing agencies (SDLAs) have been instructed by the Federal Motor Carrier Safety Administration (FMCSA) to:
- Deny CDL and CLP issuance, renewal, upgrade, or transfer for any driver that has an unresolved violation (prohibited status) in the Clearinghouse.
- Downgrade existing CDL and CLP holders while they are in prohibited status in the Clearinghouse.
The SDLA must report the downgrade within 60 days of learning of the status and reinstate privileges after learning that the driver is no longer prohibited.
Reclaiming a downgraded CDL or CLP
The Clearinghouse regulations (383.73(q)) don’t outline administrative processes for the SDLA to reinstate CDL privileges. As a result, drivers can’t assume their licenses are automatically restored when the status changes from prohibited to not prohibited in the Clearinghouse. They must speak with the SDLA to learn how to reclaim their licenses and what actions and documentation might be required of them.
Monitoring the reinstatement status is one additional step for the motor carrier before allowing the driver to operate a commercial motor vehicle (CMV) again. It must ensure the driver is properly licensed or face a citation (using a driver without a CDL when one is required).
Access by roadside enforcement
Knowledge of a prohibited status will no longer be limited to just Commercial Vehicle Safety Alliance (CVSA) inspectors during a roadside inspection. CVSA inspectors can see a driver’s status to determine if a driver should be placed out of service.
The implementation of this Clearinghouse rule now allows all safety enforcement officers to identify prohibited drivers after a license downgrade by conducting a license check during a routine traffic stop. This increased visibility will keep drivers from operating commercial vehicles when restricted.
MVRs help identify prohibited drivers
Tying the driver’s CDL or CLP to the Clearinghouse status provides a medium for motor carriers that are not subject to Part 382 to learn of violations. These carriers don’t have a Clearinghouse account and no means of detecting a prohibited status. But a driver with an unresolved testing violation is restricted from the operation of all CMVs, including non-CDL CMVs. These motor carriers can avoid using a driver in a prohibited status through a motor vehicle record (MVR) or continuous MVR monitoring. Those who manage a carrier’s driver qualifications (DQ) files should be brought into the conversation, since the MVR will show a downgraded CDL.
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drug-and-alcohol-testing-dot
FOUNDATIONAL LEARNING
InstituteDrug and alcohol policy - Motor CarrierAlcohol testing - Motor CarrierFleet SafetyDrug and Alcohol Testing - DOTDrug testing - Motor CarrierTransportationSafety-sensitive function - Motor CarrierEnglishAnalysisFocus AreaCompliance and Exceptions (Level 2)USA
What regulations apply to DOT drug and alcohol testing?
InstituteDrug and alcohol policy - Motor CarrierMedical review officer (MRO) - Motor CarrierDrug testing - Motor CarrierDrug and Alcohol Testing - DOTTransportationIn Depth (Level 3)EnglishFleet SafetyBreath alcohol technician - Motor CarrierConsortium: third-party administrator (TPA) - Motor CarrierDesignated employer representative (DER) - Motor CarrierSubstance abuse professional (SAP) - Motor CarrierAlcohol testing - Motor CarrierAnalysisFocus AreaUSA
Key definitions
InstituteDrug and alcohol policy - Motor CarrierAlcohol testing - Motor CarrierFleet SafetyDrug and Alcohol Testing - DOTDrug testing - Motor CarrierTransportationIn Depth (Level 3)Consortium: third-party administrator (TPA) - Motor CarrierDesignated employer representative (DER) - Motor CarrierSafety-sensitive function - Motor CarrierEnglishAnalysisFocus AreaUSA
What is the designated employer representative’s (DER’s) role?
InstituteDrug and alcohol policy - Motor CarrierAlcohol testing - Motor CarrierMedical review officer (MRO) - Motor CarrierFleet SafetyDrug and Alcohol Testing - DOTDrug testing - Motor CarrierTransportationFocus AreaDesignated employer representative (DER) - Motor CarrierConsortium: third-party administrator (TPA) - Motor CarrierEnglishAnalysisIn Depth Sub Topics (Level 4)USA
DER as contact person
InstituteDrug and alcohol policy - Motor CarrierEnglishMedical review officer (MRO) - Motor CarrierFleet SafetyDrug and Alcohol Testing - DOTDrug testing - Motor CarrierConsortium: third-party administrator (TPA) - Motor CarrierFocus AreaUSAAlcohol testing - Motor CarrierAnalysisTransportationIn Depth (Level 3)
What service providers will a motor carrier need to manage its testing program?
InstituteDrug and alcohol policy - Motor CarrierMedical review officer (MRO) - Motor CarrierIn Depth Sub Topics (Level 4)Drug testing - Motor CarrierDrug and Alcohol Testing - DOTEnglishFleet SafetyBreath alcohol technician - Motor CarrierFocus AreaConsortium: third-party administrator (TPA) - Motor CarrierSubstance abuse professional (SAP) - Motor CarrierAlcohol testing - Motor CarrierAnalysisTransportationUSA
Auditing service providers
InstituteDrug and alcohol policy - Motor CarrierEnglishFleet SafetyIn Depth Sub Topics (Level 4)Drug and Alcohol Testing - DOTDrug testing - Motor CarrierFocus AreaConsortium: third-party administrator (TPA) - Motor CarrierAlcohol testing - Motor CarrierAnalysisTransportationUSA
Consortium/Third-party administrators
InstituteNon-evidential alcohol screening devices - Motor CarrierDrug and alcohol policy - Motor CarrierEvidential breath testing device (EBT) - Motor CarrierFleet SafetyEnglishIn Depth Sub Topics (Level 4)Drug and Alcohol Testing - DOTDrug testing - Motor CarrierBreath alcohol technician - Motor CarrierFocus AreaAlcohol testing - Motor CarrierAnalysisTransportationUSA
On-site audits of collection sites
InstituteDrug and alcohol policy - Motor CarrierEnglishMedical review officer (MRO) - Motor CarrierFleet SafetyIn Depth Sub Topics (Level 4)Drug and Alcohol Testing - DOTDrug testing - Motor CarrierFocus AreaDesignated employer representative (DER) - Motor CarrierAlcohol testing - Motor CarrierAnalysisTransportationUSA
Providing collectors with necessary information
Downgrades of CDLs/CLPs
InstituteDrug and alcohol policy - Motor CarrierEnglishFleet SafetyIn Depth Sub Topics (Level 4)Drug and Alcohol Testing - DOTDrug testing - Motor CarrierFocus AreaUSAAlcohol testing - Motor CarrierDrug and alcohol recordkeeping - Motor CarrierAnalysisTransportationDrug and Alcohol Clearinghouse - Motor Carrier
['Drug and Alcohol Testing - DOT']

- SDLAs have access to the Clearinghouse and will use the information to disqualify a driver from holding a CDL or CLP.
- Roadside inspection personnel can see a prohibited status in the Clearinghouse to place a driver out of service.
- Traffic enforcement will be able to see a downgraded license on the driving record that is the result of an unresolved violation in the Clearinghouse.
State driver’s licensing agencies (SDLAs) have been instructed by the Federal Motor Carrier Safety Administration (FMCSA) to:
- Deny CDL and CLP issuance, renewal, upgrade, or transfer for any driver that has an unresolved violation (prohibited status) in the Clearinghouse.
- Downgrade existing CDL and CLP holders while they are in prohibited status in the Clearinghouse.
The SDLA must report the downgrade within 60 days of learning of the status and reinstate privileges after learning that the driver is no longer prohibited.
Reclaiming a downgraded CDL or CLP
The Clearinghouse regulations (383.73(q)) don’t outline administrative processes for the SDLA to reinstate CDL privileges. As a result, drivers can’t assume their licenses are automatically restored when the status changes from prohibited to not prohibited in the Clearinghouse. They must speak with the SDLA to learn how to reclaim their licenses and what actions and documentation might be required of them.
Monitoring the reinstatement status is one additional step for the motor carrier before allowing the driver to operate a commercial motor vehicle (CMV) again. It must ensure the driver is properly licensed or face a citation (using a driver without a CDL when one is required).
Access by roadside enforcement
Knowledge of a prohibited status will no longer be limited to just Commercial Vehicle Safety Alliance (CVSA) inspectors during a roadside inspection. CVSA inspectors can see a driver’s status to determine if a driver should be placed out of service.
The implementation of this Clearinghouse rule now allows all safety enforcement officers to identify prohibited drivers after a license downgrade by conducting a license check during a routine traffic stop. This increased visibility will keep drivers from operating commercial vehicles when restricted.
MVRs help identify prohibited drivers
Tying the driver’s CDL or CLP to the Clearinghouse status provides a medium for motor carriers that are not subject to Part 382 to learn of violations. These carriers don’t have a Clearinghouse account and no means of detecting a prohibited status. But a driver with an unresolved testing violation is restricted from the operation of all CMVs, including non-CDL CMVs. These motor carriers can avoid using a driver in a prohibited status through a motor vehicle record (MVR) or continuous MVR monitoring. Those who manage a carrier’s driver qualifications (DQ) files should be brought into the conversation, since the MVR will show a downgraded CDL.
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