Maryland Ignition Interlock Requirements
There are a variety of penalties for drunk driving offenses in Maryland. This guide explains the Maryland Ignition Interlock Device process and what drivers need to know about regaining driving privileges after a DUI.
DEVICES AVAILABLE - If you need to install a device to meet your state requirements, we can help. Contact us today to schedule an installation appointment.
The Maryland Ignition Interlock Program
As of October 1, 2024, Maryland’s new law, HB 105, will require ignition interlock devices (IIDs) for more first-time DUI offenders and those with lower BAC levels between .07 and .0799. This change is part of Maryland’s ongoing effort to make roads safer and reduce drunk driving.
In Maryland, the legal blood alcohol content (BAC) limit is .08 percent. Anyone driving with a BAC at or above this limit can be charged with DUI. Additional penalties may be imposed depending on the circumstances of the alcohol-related driving incident, including the installation of a Maryland ignition interlock device (IID) to regain driving privileges.
There are two types of alcohol-related driving offenses in Maryland:
- Driving Under the Influence (DUI) for drivers with a BAC of .08 percent or higher
- Driving While Impaired (DWI) for drivers with a BAC between .07 and .0799
With the new expansion to Noah’s Law (HB 105), DWI offenders will now also be required to install an IID.
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What Happens if I Get a DUI in Maryland?
First DUI Offense
- Six-month license suspension
- Fines of up to $1,000
- One-year in jail
- 12 points added to driving record
- Ignition interlock Maryland approves may need to be installed
Second DUI Offense
- Up to two years in jail
- $2,000 fine
- One-year license revocation
- 12 points added to driving record
- Installation of ignition interlock device Maryland approves required for drivers convicted twice within five years
- Repeat offenders who offend within five years may be ordered to attend treatment
Third DUI Offense
- Up to three years in jail
- Pay up to $3,000 fine
- 12 points added to driving record
- May be required to attend a treatment program
- Ignition interlock Maryland approves required to be installed on every vehicle they own
HB 105 Credit for Early Installation
Under HB 105, Maryland drivers can now receive credit toward their IID requirement starting from the day of installation. Installing the device early can shorten the required usage period.
Expungement Opportunities Under HB 105
Starting October 1, 2024, Maryland’s HB 105 allows certain DUI offenses to be expunged. Drivers who received a probation before judgment (PBJ) for impaired driving may be eligible to apply for expungement 15 years after completing probation. This provides a path to clear your record after demonstrating long-term compliance with Maryland’s laws.
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The Process: What to Expect
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Consult with Legal Counsel
Seek guidance from a DUI lawyer to understand your legal options and rights following a DUI violation.
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Get an Assessment
Complete a court-ordered or voluntary assessment to evaluate your risk level and determine any required interventions.
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Schedule Interlock Install
Speak to our State Specialists to schedule your IID installation to meet court or state requirements.
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Regular Monitoring
Your ignition interlock usage will be regularly monitored to maintain compliance with legal requirements.
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Device Removal
After fulfilling your IID requirement and receiving approval from your monitoring authority, you can arrange to have your ignition interlock device removed at your local service center.
Maryland Ignition Interlock Device Cost
Maryland ignition interlock device costs are covered by the offender. Devices are typically leased as opposed to purchased outright. Maryland does offer financial assistance to offenders who qualify.
- Costs vary, but an Intoxalock ignition interlock device Maryland approves is between $2.50 and $3.50 a day.
- Intoxalock also offers a device protection plan in case of damage, for $10 a month.
- Intoxalock state specialists can help you determine costs and find a location near you.
Expert DUI Attorneys in Maryland
Fishbein & Fishbein PA
Columbia, MD 21046
Greivell & Garrott Johnson, LLC
Hagerstown, MD 21742
Leavy & Frank, LLC
Bethesda, MD 20814
The Cohen Law Firm
Baltimore, MD 21208
Maryland FAQs
Can I get financial assistance to pay for my ignition interlock device in Maryland?
Yes, there is financial assistance available. If you have received state assistance in the last 12 months, you may be eligible. To apply, you will submit an Application for Waiver for Ignition Interlock Participation to the monitoring authority for approval.
How do I find an installation location near me in Maryland?
Visit the Maryland locations page to review all locations in Maryland. There are more than 160 throughout the state.
How does an ignition interlock device work?
To see how an ignition interlock device works, visit our ignition interlock page and watch our video demonstrating how to use the device.
How much does an ignition interlock cost in Maryland?
Intoxalock customers will pay a $74.99 to $100 deposit and a $29.99 setup fee at their installation appointment. The lease fees will be $49.99 to $74.99 monthly.
What are the Maryland ignition interlock device requirements?
If an offender is convicted of drunk driving in Maryland, their driver’s license may be suspended or revoked. Some drivers are able to regain driving privileges by installing a state-approved ignition interlock device with a camera.
What are the other DUI requirements in Maryland?
Check the Maryland state page for all DUI penalties.
What are the steps to get my ignition interlock device in Maryland?
You will make your appointment with the interlock service center location of your choice. If Intoxalock is your chosen provider, our state specialists can help you find the most convenient one for you to visit and help you make an appointment.
What information should I provide to get my ignition interlock device installed in Maryland?
Your Maryland driver’s license or state identification, and the name of the vehicle’s registered owner. You may receive paperwork at the appointment to share with the state monitoring authority.
What information should I provide to get my ignition interlock device removed in Maryland?
You don’t need to bring your authorization letter with you, but make sure you are authorized for removal prior to making your appointment.
What is an ignition interlock device and why do I need one?
An ignition interlock device is a smart add-on for vehicles that stops impaired driving by checking the driver's breath for alcohol.
When can I get my ignition interlock device removed in Maryland?
You will receive a Completion Letter once you are close to being eligible to remove the device. You should complete the final calibration after the eligibility date. Once the final calibration is complete, Intoxalock will share the data with the monitoring authority. Offenders will attend a meeting with their Hearing Officer to determine if they are authorized to remove the device. Regardless of the results of the hearing, the monitoring authority will send a letter with results. If eligible to remove, you can then make your removal appointment.
Where can I find more information on ignition interlock devices?
To learn more about ignition interlock information, please visit our ignition interlock device page.
Where can I find other DUI resources such as a DUI attorney, treatment center, or SR-22 insurance in Maryland?
Our state specialists can help you find an attorney. We work with several experienced DUI attorneys throughout the state.
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