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Drug & Alcohol Testing

When a Driver Fails a DOT Drug Test: Employer Steps and the SAP

Published November 10, 2026

A positive DOT result starts a required process. Here is what employers must do.

A verified positive DOT drug test sets off a series of required steps. Handling them correctly protects your authority and the driver's path back.

Immediate Steps

  • Remove the driver from all safety-sensitive duty at once
  • Do not let them drive until the full return-to-duty process is complete
  • Report the violation to the FMCSA Clearinghouse

The SAP Process

The driver must be evaluated by a Substance Abuse Professional (SAP), complete the SAP's recommended education or treatment, and pass a directly observed return-to-duty test before driving again. Follow-up testing continues for at least a year.

Documentation

Keep records of removal, the Clearinghouse report, and the return-to-duty steps. An auditor will expect to see them.

Frequently Asked Questions

Does a positive go to the Clearinghouse? Yes. Employers must report DOT drug and alcohol violations to the FMCSA Clearinghouse.

Can the driver come back? Yes, but only after completing the SAP process and passing an observed return-to-duty test, followed by follow-up testing.

Can Test Pro manage the return-to-duty testing? Yes, we handle return-to-duty and follow-up testing and keep the records.

Let Test Pro Handle It

Test Pro LLC in Kent, WA helps owner-operators, motor carriers and employers stay compliant across Washington and beyond — drug and alcohol testing, random pools, IFTA, filings and driver files. Call (206) 518-2097 or book an appointment. Questions first? Contact us.

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Test Pro LLC provides DOT and Non-DOT testing for employers and individuals.