When a DOT SAP is required
Under 49 CFR Part 40, Subpart O, a person who has violated a DOT drug or alcohol rule cannot again perform DOT safety-sensitive duties for any employer until completing the required SAP evaluation, referral and education or treatment process. Examples include:
- a DOT drug test verified as positive by the Medical Review Officer, or MRO
- a refusal to test under the applicable DOT rules, including a verified adulterated or substituted drug specimen
- an alcohol confirmation test with a concentration of 0.04 or greater
- a positive or qualifying refused DOT pre-employment test
Not every missed pre-employment collection is a refusal. Under 49 CFR 40.191, leaving before the collection process begins or simply failing to appear for an ordinary pre-employment test is treated differently from refusals that occur after the testing process has begun or after a contingent offer in circumstances covered by the rule.
The Part 40 return-to-duty requirement follows you when you seek other DOT safety-sensitive work. Changing employers does not remove the requirement.
When the SAP return-to-duty process may not apply
Some test situations do not trigger the SAP process:
- Alcohol 0.02 through 0.039 for an FMCSA-covered driver. This does not trigger the SAP return-to-duty process and is not a Clearinghouse violation. Under 49 CFR 382.505, the driver cannot perform safety-sensitive functions until the next regularly scheduled duty period and at least 24 hours have passed since the test.
- Negative dilute. A negative dilute result is a negative DOT result. If the creatinine concentration falls within the range specified in 49 CFR 40.197, the MRO directs an immediate recollection under direct observation. For other negative dilute results, the employer may have a consistent policy requiring one immediate recollection. Refusing a required recollection can be a refusal.
- Non-DOT company tests. A test conducted solely under an employer's non-DOT policy is not a DOT test and cannot itself be reported as a DOT test violation to the FMCSA Clearinghouse.
- A laboratory result that has not yet been verified by the MRO. A laboratory positive is not the same as an MRO-verified positive DOT result. The MRO completes the verification process, including considering a legitimate medical explanation where the rules allow one.
Your 72-hour window for a split specimen test
If the MRO notifies you of a verified positive drug test or a refusal based on adulteration or substitution, you have 72 hours from the time of that notification to request testing of the split specimen under 49 CFR 40.171. The request can be verbal or in writing.
If more than 72 hours have passed, the MRO must still direct the split specimen test when the MRO determines that a legitimate reason prevented a timely request, such as serious injury, illness, lack of actual notice or an inability to contact the MRO. The split specimen is sent to a second HHS-certified laboratory for the testing required by Part 40. It is not a new collection. If you want split specimen testing and the deadline is close, contact the MRO directly.
What happens to your CDL
For drivers subject to FMCSA's Clearinghouse rules, reportable drug and alcohol violation information results in a prohibited Clearinghouse status until the required return-to-duty steps are completed. Since November 18, 2024, State Driver Licensing Agencies must act on FMCSA notifications of prohibited drivers. FMCSA guidance states that States have 60 days after notification to complete the CDL or CLP downgrade process.
After the SAP determines that you have successfully complied and you then receive the required negative return-to-duty result, the employer or authorized C/TPA reports that result to the Clearinghouse. That changes the Clearinghouse status to not prohibited. Restoration of CDL or CLP privileges is then handled by the State under its own procedures. Read more in our guide to CDL downgrades from a prohibited status.
Avoiding preventable delays
The rules do not provide a shortcut around the SAP process, but you can avoid some administrative delays:
- if you are an FMCSA-covered driver, register for the Clearinghouse if needed and designate the SAP you select so the required SAP information can be reported
- before paying, confirm that the SAP meets the qualification requirements in 49 CFR 40.281 and ask about appointment availability and whether a legally permitted remote evaluation is available
- complete only the education or treatment recommended by your SAP and provide any documentation the SAP requests
- work out who can direct the return-to-duty test before you reach that step
A current or prospective Part 382 employer can direct the return-to-duty test. An owner-operator uses a designated C/TPA. FMCSA also states that a driver with no current or prospective employer may register as an owner-operator and designate a C/TPA for the limited purpose of completing the return-to-duty test and reporting the negative result. That limited option does not transfer the later follow-up testing plan to the C/TPA once the driver resumes employment. The follow-up plan must then be administered by the driver's employer.
Use the SAP timeline calculator to understand the sequence, and the return-to-duty process guide for more detail.