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  • New Customers
    • RoadGuard’s Ignition Interlock Device
    • DUI Laws by State
    • What Is an Interlock?
    • Schedule Interlock Installation
    • State License Reinstatement
    • Ignition Interlock for Hearing Impaired or Deaf Drivers
    • Ignition Interlock Device Cost
    • Why RoadGuard Interlock?
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  • Existing Customers
    • Contact Customer Support
    • All Support Topics
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Discover the RoadGuard Interlock blog and learn about ignition interlock devices, DUI laws, and get safe driving and responsible drinking tips.

What is a DWI? What is a DUI? DUI vs DWI

What is a DWI? Driving Under the Influence and Driving While Intoxicated may be challenging to understand. DUI vs DWI? Here is the difference

6 Tips on Committing to a Designated Driving Plan

Not everyone understands entirely what it means to be a designated driver. Read on to get some tips about committing to a plan.

Restricted Driver’s License: What You Need to Know About Restricted License

If your license suspension is due to a DUI, you may need a restricted license. Let’s take a look at what is a restricted driver’s license.

How to Stop Drinking and Driving Over Memorial Day Weekend

Memorial Day weekend marks one of the most dangerous times of the year. Follow these tips to stay safe and how to stop drinking and driving.

Get a Personal Breathalyzer to Check BAC

Drink alcohol? Use a personal breathalyzer to determine your BAC. Here’s what you need to know about a breathalyzer and BAC levels.

How Much Alcohol is Really in Your Standard Drink?

Whether you drink daily or only at occasional festivities, you may be surprised by how much alcohol is in your drink. Get the facts.

What Is the Difference Between A Car Breathalyzer and an Ignition Interlock

What is the difference between a car breathalyzer and an ignition interlock? There are a lot of names for interlock devices, get the facts.

DUI in Maryland? Get Back on the Road Fast with RoadGuard Interlock

If you recently got a DUI in Maryland, then you may face immediate administrative sanctions as well as other penalties. Get the facts.

6 Tips on How to Avoid Drunk Driving on Cinco de Mayo

Nobody should get behind the wheel after drinking alcohol. Read on to learn how to avoid drunk driving on Cinco de Mayo. Get some tips.

What Happens at DUI Checkpoints and Why Are They Necessary

What happens at DUI checkpoints? Checkpoints are used by law enforcement to test drivers for intoxication. Here’s what you need to know.

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