DUI in a Commercial Vehicle or with a CDL

What happens when the holder of a CDL is accused of DUI in a commercial vehicle or a personal non-commercial vehicle? The CDL holder must worry about the administrative consequences that come with an administrative or “on the spot” suspension. The CDL holder must also worry about the court-ordered sanctions if a DUI conviction is not avoided.

Under Florida law, a person can be subjected to administrative penalties or charged with the offense of DUI in a Commercial Motor Vehicle under any of the following theories:

• the driver of the commercial vehicle has a blood-alcohol level of .04 or above;
• the driver of the commercial vehicle is under the influence of alcohol or a controlled substance;
• the driver refused to submit to a test to determine the alcohol concentration when driving a commercial motor vehicle; or
• the driver is convicted of any of the normal DUI laws that apply to drivers of non-commercial vehicles.

Attorney Commercial Driver DUI in Tampa, FL

Contact an experienced DUI Lawyer in Tampa to discuss the consequences of a DUI for a CDL holder while operating a commercial motor vehicle or their personal vehicle. We can help you fight the on-the-spot administrative suspension and the criminal charges.

Don’t wait too long. You only have ten (10) days after your arrest or notice of the administrative suspension or disqualification to protect your driver’s license and CDL.

The attorneys at Sammis Law Firm in Tampa, FL, can help you with both. We also have offices in Clearwater in Pinellas County and New Port Richey in Pasco County, FL.

Call 813-250-0500.

DUI for CDL Holders (2026 Updates)

For commercial drivers in Florida, the stakes of a DUI have always been high. But as of early 2026, new federal and state regulations have essentially eliminated the “wiggle room” that once allowed some drivers to save their careers.

We know the most significant change involves the strict enforcement of “Masking” prohibitions and the full integration of the FMCSA Drug and Alcohol Clearinghouse.

Federal regulations have effectively eliminated “masking” as explained in 49 CFR 384.226. “Masking” occurs when a court or prosecutor allows a CDL holder to enter a diversion program or pleads a charge down in a way that prevents the original violation from appearing on their Motor Vehicle Record (MVR).

As of 2026, the FMCSA has intensified its audit of state courts. Florida prosecutors are now under immense federal pressure to ensure that no “masking” occurs. If you are a CDL holder, you are frequently ineligible for diversion programs (like RIDR in Hillsborough County) that would otherwise allow a regular driver to avoid a conviction.

Under federal law, the state must not “mask, defer imposition of judgment, or allow an individual to enter into a diversion program” that would prevent a conviction from being reported.

Starting in November 2024 and fully enforced by January 2026, a new “Direct Link” between the Federal Clearinghouse and State Driver Licensing Agencies (SDLAs) has been upgraded.  If the FMCSA receives a report of a DUI “prohibited” status (such as a breath test refusal or a 0.04+ result), the Florida DHSMV is now required by federal law to downgrade your CDL to a standard Class E license within 60 days.

As of January 10, 2026, paper medical cards are officially obsolete. Your medical certification is now fully digital and tied to your MVR. A DUI conviction can trigger an immediate “Medical Unfit” status, meaning even if you win your criminal case, you may still be disqualified by your Medical Examiner’s Certificate (MEC).

Florida law (§ 322.61, Fla. Stat.) remains one of the harshest in the country for commercial drivers.

• for a 0.04+ BAC in a Commercial Vehicle, there is a 1-Year Disqualification
• for a 0.08+ BAC in a Personal Vehicle, there is a 1-Year Disqualification
• the first refusal in either a commercial or personal vehicle, there is a 1-Year Disqualification
• for any second DUI/Refusal in either a commercial or personal vehicle, there is a LIFETIME DISQUALIFICATION

Many drivers mistakenly believe that a DUI in their personal car won’t affect their CDL. This is false. Under 49 CFR 383.51, a DUI conviction in your personal vehicle carries a mandatory one-year CDL disqualification.

In January 2026, the Department of Transportation (DOT) significantly expanded its testing panels for fentanyl and norfentanyl, which are now part of the standard urine and oral fluid testing panels for all CDL drivers.

Many agencies have transitioned to oral fluid testing (saliva) in 2026, which has a much shorter “detection window” but is harder to challenge for “sample tampering.”Because you cannot “mask” a conviction, the only way to save a CDL is through an outright dismissal or an acquittal at trial.

Florida Alcohol Laws Specific to Commercial Vehicles under 322.62

The Florida statutory presumptions of impairment that apply to blood or breath alcohol results do not apply to commercial vehicle alcohol offenses. However, the prosecutor can still bring a prosecution for DUI under Section 316.193, even if the defendant was driving or in actual physical control of a commercial vehicle.

Penalties for the CDL driver include:

• Any Alcohol: Under Florida Statute Section 318.18, driving or being in actual physical control of a commercial vehicle with ANY amount of alcohol in the body can result in a traffic infraction. See Florida Statute Section 322.62(1).
• Alcohol Level of .04: If the commercial driver’s blood or breath alcohol level is .04 or higher then the punishment is listed in 322.62(2)(b).

Definition of Commercial Vehicle

Florida law defines commercial vehicles to include any of the following types of vehicle driven on the streets or highways in Florida:

• vehicles with a declared maximum weight for purposes of registration when loaded of over 26,000 pounds (as defined in Florida Statute Chapter 320);
• vehicles with a “gross vehicle weight rating” of more than 26,000 pounds (as defined in Florida Statute Section 322.01(22));
• vehicles with a combined weight including the weight of the load as figured by the fixed scale operated by a portable scale operated by any law enforcement officer or a fixed scale operated by the State of Florida;
• vehicles designed to transport a driver and more than 14 passengers; or
• vehicles that must be placarded as required by Title 49 C.F.R., part 172, subpart F, in order to transport hazardous materials.

Ineligible to Operate a Commercial Motor Vehicle

In addition to any other punishment imposed in the criminal case, any person convicted of DUI in a Commercial Motor Vehicle or being in possession of a controlled substance while driving a commercial motor vehicle will suffer the following:

• First DUI conviction: the driver is not eligible to operate a commercial motor vehicle for a period of twelve (12) months;
• Second or subsequent DUI conviction: the driver is permanently ineligible to operate a commercial motor vehicle.

During the period in which the individual is ineligible to drive a commercial motor vehicle, there is no provision for a hardship license to operate any commercial motor vehicle.

CDL Offenders and a Withhold of Adjudication

Under Section 318.14, Florida Statutes, the court is not allowed to withhold adjudication for the holder of a commercial driver’s license (CDL). The CDL holder is not permitted to elect to attend a driver improvement course in lieu of a court appearance in order to avoid a conviction or the imposition of points.

Under 49 C.F.R. § 384.226, the courts are prohibited from “masking” convictions. For this reason, the holder of a CDL is not permitted to enter a diversion program that would prevent a conviction for any civil traffic infraction or criminal traffic offense from being reported on a person’s driving record. This prohibition does not apply to violations of traffic control laws for parking, vehicle weight, or vehicle defect. Currently, 49 C.F.R. § 384.226 does not provide for an exception for orders imposed by the court.

Federal law is concerned with masking or other actions that circumvent federal commercial driving regulations. Masking or diversion occurs when there is a judgment of guilt, and then the court holds the proof of the conviction in a way that prevents it from appearing on the driving record.

Criminal Defense Attorney for Commercial Motor Vehicle DUI in Florida

Anytime a CDL driver is accused of a criminal traffic offense, the consequences are serious. Harsh penalties apply when a CDL holder is accused of being under the influence of drugs or alcohol while driving a commercial vehicle. Even driving a personal vehicle while DUI has serious consequences for the CDL holder.

Whether you are accused of having any alcohol in your system, being over .04 threshold for CDL holders, or actually being over the legal limit of .08, we can help.

Contact an experienced Tampa DUI Lawyer in Hillsborough County for DUI commercial motor vehicle cases in Tampa and Plant City, Florida by calling the Sammis Law Firm, P.A. Our lawyers also represent CDL holders charged with criminal driving offenses throughout the greater Tampa Bay area including Hernando County, Pinellas County, Pasco County, Manatee County, and Polk County, FL.

Call 813-250-0500.