Indiana CDL OWI First Offense: What Commercial Drivers Face

If you hold a Commercial Driver's License and get arrested for OWI in Indiana, you're dealing with a much steeper set of consequences than a regular driver. Federal Motor Carrier Safety Administration (FMCSA) regulations layer on top of Indiana's state penalties, and the combination can end a trucking or commercial driving career overnight.

The Lower BAC Threshold for CDL Holders

Regular drivers in Indiana face OWI charges at a BAC of 0.08% or higher. CDL holders operating a commercial motor vehicle are held to a BAC of 0.04% — exactly half the standard limit. This federal standard applies in Indiana under the state's adoption of FMCSA regulations.

What catches many CDL holders off guard: you can be arrested for OWI in your personal vehicle at the standard 0.08% threshold, and that conviction still triggers the CDL disqualification. The lower 0.04% limit applies only when you're behind the wheel of a commercial vehicle, but any OWI conviction — personal car or semi — triggers federal CDL consequences.

CDL Disqualification: One Year Minimum

A first OWI conviction results in a mandatory one-year CDL disqualification under 49 CFR § 383.51. If you were transporting hazardous materials at the time, the disqualification extends to three years. This is a federal floor — Indiana can't reduce it through plea bargaining or judicial discretion.

During the disqualification period, you cannot operate any commercial motor vehicle anywhere in the United States. Your CDL itself isn't revoked — the "disqualified" status is noted on your driving record and reported to the Commercial Driver's License Information System (CDLIS), which every state's DMV checks.

A second OWI conviction at any point in your lifetime results in a permanent CDL disqualification. There's no pathway to reinstatement after a second offense.

Indiana's State Penalties Still Apply

The CDL disqualification runs alongside — not instead of — Indiana's standard OWI penalties. You'll face the same criminal case (Class C misdemeanor for standard first offense, Class A if BAC was 0.15% or higher), a 180-day administrative BMV suspension on your regular driving privileges after a standard failed test (one year for a refusal), and the same court fees, substance abuse evaluation requirements, and SR-22 filing obligations.

That BMV suspension affects your noncommercial driving privileges too: you cannot drive a personal vehicle during it unless SDP is granted. SDP, if granted, covers only personal driving under restricted conditions. No Indiana court can grant SDP for commercial vehicle operation during a CDL disqualification.

Chemical Test Refusal and CDL Holders

Refusing a chemical test in Indiana triggers the standard one-year administrative suspension for your personal driving privileges. For your CDL, a refusal independently triggers a one-year disqualification under FMCSA rules — this runs on its own track and applies even if the criminal charge is eventually dismissed.

The refusal disqualification and any conviction-based disqualification don't stack, but they don't merge either. The BMV and FMCSA track them as separate administrative actions.

Employer Notification Requirements

Indiana doesn't have a specific statute requiring you to notify your employer of an OWI arrest, but FMCSA regulations (49 CFR § 383.31) require CDL holders to notify their employer within 30 days of any conviction for a traffic violation (other than parking) in any type of vehicle. Many carriers have internal policies requiring immediate notification upon arrest — not just conviction — and failure to disclose is typically grounds for termination.

Your employer will also see the disqualification when they run your driving record through CDLIS during routine checks, which most carriers perform quarterly.

What This Means for Your Career

The one-year CDL disqualification means a year without income from commercial driving. Many carriers won't rehire a driver with an OWI conviction, and those that will often require two to five years of clean driving history post-reinstatement. Insurance costs for carriers employing OWI-convicted drivers rise significantly, making you a more expensive hire.

The Indiana First-Offense DUI Guide covers the full dual-track process including the CDL-specific timelines, but commercial drivers should also consult a transportation attorney who understands both state OWI law and FMCSA regulations — the federal layer adds complexity that a standard DUI defense attorney may not handle.

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