FMCSA Clearinghouse: Annual queries are required for all CDL drivers. Make sure you're compliant.

I failed a DOT drug test for my CDL. What do I do now?

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Stop driving and find a DOT-qualified Substance Abuse Professional (SAP). Under 49 CFR § 40.285 you cannot do any safety-sensitive work — including driving a commercial vehicle — until you finish the SAP evaluation, the education or treatment the SAP sets, and the return-to-duty test. Your employer must give you a list of SAPs at no charge, or ask us for ours.

What the regulation says

49 CFR § 40.285(a) — When is a SAP evaluation required?

As an employee, when you have violated DOT drug and alcohol regulations, you cannot again perform any DOT safety-sensitive duties for any employer until and unless you complete the SAP evaluation, referral, and education/treatment process set forth in this subpart and in applicable DOT agency regulations. The first step in this process is a SAP evaluation.

Step by step

  1. Stop all safety-sensitive work. A verified positive drug test, an alcohol result of 0.04 or higher, or a refusal to test (including an adulterated or substituted specimen) is a violation under § 40.285(b). The Medical Review Officer reports a verified positive to the FMCSA Clearinghouse within 2 business days (§ 382.705(a)).
  2. Pick a DOT-qualified SAP. Your employer must give you a list of SAPs with names, addresses and phone numbers, and cannot charge you for it (§ 40.287). No employer? You can still start — ask us for our list. You will designate your SAP in the Clearinghouse so they can report your progress.
  3. Initial SAP evaluation. A clinical assessment, done in person or over live video (§ 40.291). A phone call alone does not qualify. The SAP reports the evaluation date to the Clearinghouse (§ 382.705(d)).
  4. Education and/or treatment. The SAP refers you to a program. To prevent a conflict of interest, a SAP cannot send you to their own practice or to a business they get paid by (§ 40.299).
  5. Follow-up SAP evaluation. The SAP checks that you completed the plan. If you did, they send a report to the employer and tell the Clearinghouse you are eligible for return-to-duty testing (§§ 40.301, 382.705(d)).
  6. Observed return-to-duty test. Taken only after the SAP clears you. The urine collection must be directly observed (§ 40.67(b)), and you need a negative drug result and/or an alcohol result below 0.02 (§ 40.305). The employer reports the negative result to the Clearinghouse (§ 382.705(b)).
  7. Follow-up testing. At least 6 unannounced, observed tests in your first 12 months back, and the SAP can extend testing for up to 48 more months (§ 40.307). The plan follows you to every new employer.

Your CDL has a 60-day clock

Once you are prohibited in the Clearinghouse, your state must downgrade your CDL and record it within 60 days of being notified (49 CFR § 383.73(q)). If you are no longer prohibited before the downgrade is recorded, the state must stop it where state law allows. After a downgrade, you cannot drive a commercial vehicle until your state licensing agency reinstates the CDL (§ 382.503(b)). Starting the SAP process quickly matters.

No employer, or you own your truck?

You can see a SAP without an employer. The return-to-duty test, though, has to be ordered by an employer. If you are an owner-operator, you are your own employer, and FMCSA requires you to designate a C/TPA to handle your Clearinghouse reporting (§ 382.705(b)(6)). Assurity can be that C/TPA and run your testing.

What the whole process costs

Federal rules leave payment to you and your employer (§ 40.289(c)). Published SAP prices we reviewed in September 2026 ran about $394 to $699 for the initial and follow-up evaluations. Education or treatment is extra and set by the program. Then comes the testing: one observed return-to-duty test plus at least six observed follow-up tests. Our testing package is $998. Lea esta guía en español.

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Related questions

Can I do the SAP evaluation online?

Yes, over live video. 49 CFR § 40.291 allows remote evaluations when the technology permits real-time audio and visual interaction. A phone call alone does not qualify, and the SAP must stay within the geographic limits of their license or certification (§ 40.281).

Is refusing a test treated the same as failing it?

Yes. Under 49 CFR § 40.285(b), a refusal to test, including an adulterated or substituted specimen, is a violation that requires the same SAP process as a verified positive.

Does my follow-up testing start over if I change jobs?

No, it follows you. Under 49 CFR § 40.307(e), your new employer is responsible for making sure you finish the remaining follow-up tests.

Can my SAP send me to their own classes?

No. 49 CFR § 40.299 bars a SAP from referring you to their own practice or to any organization they receive payment from or have a financial interest in, with limited exceptions such as public agencies and the employer's contracted provider.

Who pays for the SAP?

Federal rules leave it to you and your employer. 49 CFR § 40.289(c) says payment is for employers and employees to decide, and it may be covered by a labor agreement or health benefits.

Regulatory text on this page was verified against the current eCFR on September 30, 2026. This is general compliance information, not legal advice. Questions? Call (888) 869-0898.