Home › Blog › Maryland CDL Disqualifications: Reasons for Losing License

Maryland CDL Disqualifications: Reasons for Losing License

Tina Tran

Created at February 23, 2026

If you’re a commercial driver or planning to get your Commercial Driver’s License in Maryland, understanding the Maryland CDL disqualifications is essential. A variety of violations, such as DUIs, serious traffic offenses, and drug-related infractions, can disqualify you from holding a CDL. Knowing what can lead to disqualification will help protect your driving career and prevent potential setbacks. In this article, we’ll explore the most common causes of CDL disqualifications in Maryland and provide helpful information to avoid losing your commercial driving privileges.

What are the Maryland CDL disqualifications?

In Maryland, a Commercial Driver’s License (CDL) is needed to operate large vehicles, but various violations can lead to disqualification. These include drug and alcohol-related offenses, serious traffic violations, and accumulating too many points. Here’s a breakdown of what can lead to disqualification:

Alcohol & Drug‑Related Violations

Maryland CDL holders face very strict penalties for alcohol and drug offenses. The legal blood alcohol concentration (BAC) limit for commercial drivers is 0.04%, half the 0.08% limit for regular drivers.

Federal and Maryland law directly disqualify a CDL for:

Any DUI conviction, even if the offense occurs in a personal vehicle.
Refusing a chemical test (breath/blood): a refusal itself triggers CDL disqualification.
Drug‑related driving offenses: operating a vehicle while under the influence of drugs.

Typical disqualification periods:

First DUI offense: 1‑year CDL disqualification.
Hazardous materials DUI: 3‑year disqualification.
Second or subsequent DUI: Lifetime CDL disqualification (possible reinstatement after years in limited situations).

These rules apply even if the impaired driving wasn’t in a commercial vehicle at the time.

Serious traffic violations

Maryland and federal CDL regulations identify specific violations that automatically trigger CDL disqualification. These are treated more severely than for non‑commercial drivers because of the greater risk posed by commercial vehicles.

Common serious traffic violations include:

Speeding 15 mph over the limit
Reckless or aggressive driving
Leaving the scene of an accident
Using a handheld device while driving
Operating a commercial vehicle without the proper license or endorsement
Other serious violations under federal law

According to the federal guidelines Maryland follows, having two serious traffic violations within 3 years can lead to disqualification.

License suspension, revocation, or restriction

You cannot be issued a CDL, and existing CDLs can be disqualified if you:

Are currently suspended, revoked, denied, or cancelled in Maryland or another state.
Have a commercial driving privilege disqualification pending in any state.
Are under certain restrictions that prevent holding a CDL (e.g., work‑restricted non‑CDL license).

This means even unrelated suspensions like those resulting from alcohol or non‑commercial traffic violations can affect your ability to obtain or keep a CDL.

Accumulating too many points

Maryland assigns points for traffic violations on all driver records. CDL holders risk additional consequences if:

They accumulate excessive points within a specific timeframe.
Multiple minor violations amount to a pattern of unsafe driving.

When point totals reach thresholds set by the Maryland Motor Vehicle Administration (MVA), this can trigger suspensions that, in turn, disqualify CDL privileges.

Regulatory & compliance violations

Maryland follows FMCSA regulations for CDL holders, meaning certain offenses under federal law also lead to disqualification:

Operating a commercial vehicle without proper endorsements (hazardous materials, passenger, etc.).
Operating a CMV in a way that violates federal safety rules (e.g., failing to comply with drug testing requirements).

These violations are separate from state laws and can result in immediate disqualification even without a criminal conviction.

FAQs

1. Can you get a CDL with a DUI in Maryland?

Yes, you can obtain or retain a CDL after a DUI in Maryland, but with strict conditions. A first DUI offense results in a one-year disqualification, while subsequent offenses may lead to permanent disqualification. DUI convictions in personal vehicles also impact your CDL.

2. How long does a DUI stay on your record in Maryland?

In Maryland, a DUI stays on your criminal record permanently, visible to law enforcement, employers, insurers, and others who conduct background checks. However, for sentencing purposes, there is a 10-year lookback period. This means that prior DUIs within the last 10 years can be considered when sentencing for a new DUI offense.

Conclusion

Navigating Maryland CDL disqualification rules is essential for anyone looking to maintain or obtain a commercial driver’s license. Serious violations like DUIs, reckless driving, and drug offenses can have lasting impacts, including suspension or permanent disqualification. Understanding these regulations ensures that you can avoid penalties that may disrupt your driving career. Additionally, to prepare for your CDL exam, consider taking a Maryland CDL practice test to ensure you pass with confidence and avoid any issues that could affect your commercial driving privileges.