What counts as a refusal
Part 40 defines refusal separately for drug tests and alcohol tests, and the lists are longer than most supervisors expect. A flat “no” is the obvious case. The rest are conduct that stops the test from happening. 49 CFR 40.191(a) 49 CFR 40.261(a)
Drug test · 40.191(a)–(b)
- Fails to appear within a reasonable time set by the employer
- Fails to remain at the site until the process is complete
- Fails to provide a specimen
- Refuses an observed or monitored collection when one is required
- Provides an insufficient specimen with no medical explanation
- Declines an additional test the employer or collector directs
- Fails to undergo an evaluation the MRO or DER directs
- Fails to cooperate with any part of the process
- Possesses or wears a device meant to interfere with collection
- Admits to adulterating or substituting the specimen
- Has a verified adulterated or substituted result
Alcohol test · 40.261(a)
- Fails to appear within a reasonable time set by the employer
- Fails to remain at the site until the process is complete
- Fails to provide an adequate amount of breath or saliva
- Provides insufficient breath with no medical explanation
- Fails to undergo the medical evaluation the employer directs
- Fails to sign the certification at Step 2 of the alcohol testing form
- Fails to cooperate with any part of the process
What supervisors actually hear, and what the rule calls it
- “I’ll go in the morning.”
- Failing to appear within a reasonable time, as determined by the employer, after being directed to test. 40.191(a)(1); 40.261(a)(1).
- Walks out of the clinic before the collection is finished
- Failing to remain at the testing site until the process is complete. The collector notes it; the employer decides whether it was a refusal. 40.191(a)(2); 40.261(a)(2).
- Refuses to empty pockets, argues until the collection stops
- Failing to cooperate with any part of the testing process. 40.191(a)(8); 40.261(a)(7).
- Will not sign Step 2 of the alcohol testing form
- A refusal of the alcohol test. 40.261(a)(6).
- Admits to the collector that the specimen was tampered with
- A refusal. The employer may report to the Clearinghouse only the admissions made to the collector. 40.191(a)(11); 382.705(b)(1)(iv).
- Refuses a company test or a non-DOT form
- Not a DOT refusal. No DOT consequences and nothing to report. 40.191(e); 40.261(d).
Who decides it was a refusal
The collector or breath alcohol technician documents what happened on the testing form and notifies the designated employer representative immediately. They do not make the final decision. The employer has what the rule calls a non-delegable duty to decide whether the driver refused. 49 CFR 40.191(d)(1) 49 CFR 40.261(c)(2)
Two refusal determinations belong to the medical review officer rather than the employer: an insufficient specimen with no adequate medical explanation, and a verified adulterated or substituted result. The MRO reports those to the Clearinghouse directly. 49 CFR 382.705(a)
Once made, the determination sticks. The consequences of a refusal cannot be overturned or set aside by an arbitration, a grievance, a state court, or any other non-federal forum that reviews the employer’s personnel decisions. 49 CFR 40.191(c)
What happens to the driver
- Immediate removal from safety-sensitive functions. No employer may permit a driver who refuses to perform or continue to perform safety-sensitive functions, including driving a commercial motor vehicle. 49 CFR 382.211 49 CFR 382.501
- No return without the SAP process. A refusal is a DOT drug and alcohol violation. The driver cannot perform DOT safety-sensitive duties for any employer until completing the substance abuse professional evaluation, referral, and education or treatment process in Part 40, subpart O, followed by a return-to-duty test. 49 CFR 40.285 49 CFR 382.605
- A Clearinghouse record that follows the driver. The refusal is queried by every future employer and stays on the record until the return-to-duty process is complete and reported.
- Employment is a separate question. Part 382 removes the driver from safety-sensitive work. It does not say whether to terminate; that is company policy and employment law.
What the employer must report
| Who reports | What | Deadline | Citation |
|---|---|---|---|
| Employer | A refusal to take an alcohol test under 40.261, and refusal determinations under 40.191(a)(1) through (4), (a)(6), (a)(8) through (11), or (d)(1). For an admission under (a)(11), only the admissions made to the collector. | By the close of the third business day after obtaining the information. | 49 CFR 382.705(b)(1) |
| Employer, failure-to-appear refusals | Also upload a contemporaneous record of when the driver was told to appear and where, documentation of any resignation or termination date, and proof the driver was given a copy of everything reported. | With the report. | 49 CFR 382.705(b)(3) |
| Medical review officer | Refusal determinations that belong to the MRO: insufficient specimen without a medical explanation, failure to undergo an MRO-directed evaluation, admissions to the MRO, and verified adulterated or substituted results. | Within two business days of the determination. | 49 CFR 382.705(a) |
Each report includes the reason for the test, the driver’s name, date of birth, and CDL number and state, the employer’s name, address, and USDOT number, the date of the test, the date the result was reported, and the result as “refusal to take a test.” 49 CFR 382.705(b)(2) An employer may designate a consortium or third-party administrator to file, but keeps responsibility for the report being made. 49 CFR 382.705(c)
What the supervisor does in the moment
- Say it once, plainly: the test is required under DOT rules, and refusing has the same consequences as a positive result. Do not negotiate and do not argue.
- Write down the time, the driver’s exact words, and who else was present. If the driver leaves, note the time they left.
- Do not physically restrain the driver, and do not let the driver drive. If the driver insists on leaving in a vehicle, note it and follow company policy on contacting authorities.
- Notify the designated employer representative immediately. The DER makes the refusal determination and the Clearinghouse report.
- Finish the written observation record anyway. It is still due within 24 hours of the behavior under §382.307(f), and it is what documents why the test was ordered in the first place.
Related guides
- Reasonable suspicion checklist and observation form: the signs, the clocks, and a free two-page PDF.
- Reasonable suspicion vs. post-accident testing: different triggers, different clocks.
- Who needs reasonable suspicion training: by DOT mode, with the edge cases.
Frequently asked questions
Can the driver change their mind after refusing?
The employer decides whether the driver’s conduct was a refusal, including what counts as a reasonable time to appear for the test under 49 CFR 40.191(a)(1) and 40.261(a)(1). Once the employer determines that a refusal occurred, the consequences follow, and 40.191(c) and 40.261(b) say they cannot be overturned by arbitration, a grievance, or a state court. Put your reasonable-time rule in writing before you need it.
Does the refusal still get reported if the driver quits on the spot?
Yes. The employer’s duty to report a refusal to the Clearinghouse by the close of the third business day under 49 CFR 382.705(b)(1) does not depend on the driver staying employed. For a failure-to-appear refusal, the employer must also upload documentation showing the date the driver resigned or was terminated, under 382.705(b)(3)(ii).
Is “shy bladder” a refusal?
Not by itself. Under 49 CFR 40.191(a)(5), failing to provide a sufficient specimen becomes a refusal only after a required medical evaluation finds no adequate medical explanation. That determination belongs to the medical review officer, who reports it to the Clearinghouse within two business days under 382.705(a).
Can a driver refuse because they think the supervisor is wrong?
A driver who believes the observations were wrong still has to take the test. The place to contest the determination is afterward, and a negative result ends the matter. Refusing is a violation with the same consequences as a positive result under 49 CFR 40.191(c) and 40.261(b), and 382.211 prohibits the refusal outright.
What if the driver refuses a company test that is not a DOT test?
Refusing a non-DOT test or a non-DOT form is not a refusal of a DOT test. Under 49 CFR 40.191(e) and 40.261(d), there are no DOT consequences and nothing to report to the Clearinghouse. Company policy governs. Keep DOT and non-DOT testing on separate forms so the two never blur.
Who does the collector have to notify?
The designated employer representative, immediately, by a means that ensures the notification is actually received. For an alcohol test the breath alcohol technician or screening test technician must notify the DER directly, not through a consortium or third-party administrator (49 CFR 40.261(c)(1)). The collector documents what happened on the testing form but does not make the final refusal decision.
Sources
Every citation on this page was checked against the eCFR text in effect on October 30, 2026.
- 49 CFR 382.211 — Refusal to submit to a required test
- 49 CFR 382.307 — Reasonable suspicion testing
- 49 CFR 382.401 — Retention of records
- 49 CFR 382.501 — Removal from safety-sensitive function
- 49 CFR 382.605 — Referral, evaluation, and treatment
- 49 CFR 382.705 — Reporting to the Clearinghouse
- 49 CFR 40.191 — What is a refusal to take a DOT drug test
- 49 CFR 40.261 — What is a refusal to take an alcohol test
- 49 CFR 40.285 — When is a SAP evaluation required
