OWI and commercial driving careers: CDL disqualification, the Clearinghouse and return to duty

For a commercial driver, an OWI conviction or a breath or blood test refusal in any vehicle triggers a 1-year CDL disqualification, and a second in a separate incident means disqualification for life.^[1][2][3] Separately, federal drug and alcohol rules keep a driver with a DOT alcohol violation out of safety-sensitive work until a return-to-duty process is finished, and the FMCSA Drug and Alcohol Clearinghouse lets employers see that history.^[9][7][5]

This page looks at the career side: what employers can see, how the federal testing program works, and how a driver gets back to work. The license sanctions themselves are covered in detail in CDL disqualification after an OWI, and the criminal case in CDL holders arrested for OWI.

Two separate systems: the license and the job

A commercial driver can be affected through two tracks that run on their own rules:

• The CDL itself. The Secretary of State acts on convictions and refusals under MCL 257.319b, and federal rule 49 CFR 383.51 sets the same 1-year, 3-year and lifetime structure.^[1][10]
• The DOT testing program. Employers of CDL drivers run drug and alcohol testing under 49 CFR part 382, and violations of those rules, such as an on-duty alcohol test of 0.04 or more, go into the Clearinghouse.^[11][5]

An off-duty OWI conviction in a personal car counts against the CDL on the first track, while the Clearinghouse reporting list in 49 CFR 382.705 is built around DOT test results and on-duty alcohol use rather than court convictions.^[12][5]

CDL disqualification at a glance

Event	CDL consequence
First OWI conviction or chemical-test refusal, commercial or personal vehicle	1-year suspension of all vehicle group designations[1]
Same offense in a commercial vehicle carrying placarded hazardous material	3 years[13]
Second violation from a separate incident (two OWIs, two refusals, or one of each)	Revocation for life; the Secretary of State may approve reissue after at least 10 years[2]
Another disqualifying conviction after a reissue	Revocation for life with no second reissue[2]

A personal-vehicle conviction counts against a CDL holder the same as if the driver had been in a commercial vehicle; off-road recreational vehicles are excluded from this rule.^[12]

A common misconception is that an OWI in a family car "doesn't touch" the CDL. Both Michigan law and the federal rule say otherwise.^[12][3]

No masking, no diversion, no hardship license

Federal rule 49 CFR 384.226 says a state must not mask, defer judgment on, or allow diversion that would keep a CDL or CLP holder's traffic conviction (other than parking, weight or defect violations) off the national CDLIS driver record.^[4] Michigan law separately bars any court from taking a reportable driving offense under advisement, and a reportable conviction must not be masked, delayed, diverted, suspended or suppressed by a court.^[14]

The Secretary of State may not issue a restricted license to operate a commercial motor vehicle when a vehicle group designation is required, and the specialty court restricted license covers driving for work only where the job does not require a CDL.^[15] The restricted license page explains what a restricted license allows for ordinary driving.

The DOT alcohol rules on the job

Federal rules set a stricter standard for on-duty commercial driving than the criminal OWI law does:

• No driver may report for or stay on duty in a safety-sensitive function with an alcohol concentration of 0.04 or more, and an employer that knows of it may not allow it.^[11]
• A commercial driver may not use alcohol within 4 hours before going on duty or driving, or have any measured or detected alcohol while on duty; a violation means an immediate 24-hour out-of-service order.^[16]
• Under Michigan law, an officer who has reasonable cause to believe a commercial driver had 0.015 or more must order the driver out of service for 24 hours, and the same applies to a refusal of a roadside or chemical test.^[17]
• Driving a commercial vehicle in Michigan at 0.04 or more but under 0.08 is itself a crime, a misdemeanor punishable by up to 93 days or $300 for a first offense.^[18] See OWI in a commercial vehicle.

What goes into the Clearinghouse

Employers must report to the FMCSA Clearinghouse, by the close of the third business day, an alcohol confirmation test of 0.04 or greater, a refusal to take an alcohol test, and, on "actual knowledge", on-duty, pre-duty or post-accident alcohol use or controlled-substance use.^[5] "Actual knowledge" includes a traffic citation for driving a commercial vehicle while under the influence, an employer's direct observation, information from a previous employer, or the driver's admission.^[19] So a ticket for impaired driving in a commercial vehicle can count as "actual knowledge" of alcohol use that the employer reports, even before any conviction.^[5][19]

Employer queries

Before using a driver in a safety-sensitive function, an employer must run a full pre-employment query of the Clearinghouse, which requires the driver's specific consent, and it must query at least once a year for current drivers.^[6] An employer may not let a driver perform safety-sensitive functions if the query shows a violation such as an alcohol test of 0.04 or more or a refusal, except where the record shows the return-to-duty requirements have been met.^[6]

How long it stays visible

A violation stays available to employers until all four conditions in 49 CFR 382.719 are satisfied: the SAP's report is filed, a negative return-to-duty test is reported, all follow-up tests are completed, and five years have passed since the violation determination.^[20] Waiting five years alone does not clear it.^[20]

Getting back to safety-sensitive work: the return-to-duty process

A driver who violated the part 382 alcohol or drug prohibitions is removed from safety-sensitive functions, including driving a commercial vehicle.^[9] The path back runs through 49 CFR part 40, subpart O:^[7]

1. SAP evaluation. The employee cannot perform DOT safety-sensitive duties for any employer until completing the substance abuse professional evaluation, referral and education or treatment process.^[7]
2. Education or treatment. The return-to-duty test cannot happen until the SAP has determined that the employee has complied with the prescribed education or treatment.^[8]
3. Return-to-duty test. The employee needs a negative drug result and/or an alcohol concentration below 0.02 before resuming safety-sensitive duties.^[8]
4. Follow-up testing. The SAP sets a written plan with at least six unannounced follow-up tests in the first 12 months back on duty, and may require more tests during the next 48 months.^[21]

The follow-up plan "follows the employee" to later employers and through breaks in service.^[21] An employer is not required to offer the SAP process or pay for it, and even a driver who completes every step has no right under these rules to be returned to duty; that remains the employer's personnel decision.^[22][8]

Records that do not go away

A CDL holder's traffic offense committed while driving the commercial vehicle, or that is otherwise a commercial motor vehicle violation, cannot be set aside under Michigan's set-aside law.^[23] An OWI conviction also stays on the Secretary of State driving record even when a first offense is set aside.^[24] See setting aside an OWI conviction for the rules.

Practical points for drivers

• Read your employer's drug and alcohol policy and any union agreement; they can add rules about reporting an arrest to the employer.
• Keep copies of every SAP report, test result and treatment record. Follow-up testing can stretch across jobs, and a new employer may ask for them.
• If you were arrested and have not yet been to court, the first 14 days checklist and the page on refusing a breath or blood test explain the early license deadlines. For other jobs, see OWI and your job.