If you’ve been arrested for DUI in Maryland, you may be facing more than just criminal penalties. In many cases, the Maryland Motor Vehicle Administration (MVA) will require you to install an ignition interlock device (IID) on your vehicle in order to maintain or regain your driving privileges.
At Hartman Attorneys at Law, we understand that an ignition interlock device can be a burden, not just financially, but professionally and personally. Whether you’re a first-time offender or have prior DUI convictions, we work to minimize the impact of interlock requirements and, in some cases, help you avoid them altogether.
Led by former prosecutor Christian Hartman, our Annapolis-based defense firm brings technical DUI training, local experience, and 24/7 responsiveness to every case. If you’re concerned about having an IID installed after a DUI arrest, we’re here to guide you through your options and defend your rights at every stage.
What Is an Ignition Interlock Device?
An ignition interlock device is a breathalyzer attached to your vehicle’s ignition system. Before you can start the car, you must blow into the device. If the IID detects alcohol on your breath, the vehicle will not start. Some devices also require random rolling retests while driving.
The device records:
- All test results
- Attempts to tamper or bypass
- Failures to comply with retest prompts
This data is sent to the MVA or the court, and violations can lead to longer interlock periods, license suspension, or revocation.
When Are Ignition Interlock Devices Required in Maryland?
In Maryland, ignition interlock devices are required under several circumstances, including:
Refusing a Breath Test
Under Maryland’s implied consent law, refusing a chemical test after a DUI arrest can trigger an automatic 270-day license suspension for a first offense. However, you may opt into the interlock program instead to retain limited driving privileges.
High BAC Levels
If your breathalyzer result was 0.15% or higher, the MVA may require you to install an IID for at least six months, even for a first-time offense.
DUI Convictions
Courts may order an IID as part of sentencing, especially if:
- You have prior DUI/DWI convictions
- A minor was in the vehicle
- You caused an accident or injury
- You’re convicted of DUI per se (BAC ≥ 0.08%)
As a Condition of a Restricted License
If you request a restricted license to drive for work, school, or medical purposes, participation in the ignition interlock program may be a condition of that privilege.
Legal Strategies to Avoid or Reduce Interlock Requirements
You are not powerless after a DUI arrest. There are legal pathways to fight or negotiate the terms of ignition interlock requirements, especially if the DUI charge itself can be challenged.
At Hartman Attorneys at Law, we:
- Challenge the legality of the stop or arrest
- Dispute the accuracy of BAC results
- Examine officer conduct and field sobriety procedures
- Advocate for alternatives to interlock participation
- Represent you at MVA hearings and court proceedings
If you enroll in the interlock program, we help monitor your compliance, prevent technical violations, and petition for early removal if eligible.
Attorney Christian Hartman’s background as a former prosecutor means he understands how prosecutors and judges evaluate DUI cases—and how to use that knowledge to pursue reduced penalties or dismissals.
How Long Will I Need to Use an Ignition Interlock Device?
IID duration varies depending on the offense and circumstances:
- First-time DUI (BAC 0.08–0.14%): Not always required
- First-time DUI (BAC 0.15% or more): Usually required for 12 months
- Refused breath test: One year
- Second DUI offense: One to three years
- DUI with minor in vehicle: Minimum one year
Missing a required test, tampering with the device, or driving another vehicle can restart the clock or result in license suspension.
Why Choose Hartman Attorneys at Law?
- Former Prosecutor: Attorney Christian Hartman has unique insight into how DUI penalties are pursued—and how to push back.
- DUI-Certified Defense: With training in breathalyzer testing and field sobriety procedures, we know where mistakes are made.
- 24/7 Availability: We’re here when you need us—arrests and court dates don’t wait.
- Local Advantage: Based in Annapolis, we regularly appear in Anne Arundel County courts and MVA hearings.
- Direct Attorney Access: You’ll work directly with your lawyer, not through a case manager.
Arrested for DUI? Let’s Talk Before You Blow Again.
If you’re facing the possibility of an ignition interlock device in Maryland, don’t make decisions in the dark. The sooner you act, the more options you have.
Contact Hartman Attorneys at Law today to schedule a free, confidential consultation. We’ll help you understand your rights and fight for the outcome you deserve.