Ignition Interlock Rules in Maryland

First Offense in Maryland

yes: a DUI or DWI conviction or probation before judgment requires participation in the Ignition Interlock System Program (6 months the first time required)

Official source: first offense (Maryland)

Repeat Offenses in Maryland

1 year the second time required, 3 years the third or later time; courts may order longer

Official source: repeat offenses (Maryland)

How the Program Works in Maryland

the MVA issues an interlock-restricted license; administrative elections run 180 days for 0.08 to 0.14, 1 year for 0.15 or more or a refusal; completion requires 3 consecutive violation-free months before release; fees are waived for indigent participants

Official source: how the program works (Maryland)

More on DUI Law in Maryland

See the full overview of DUI laws in Maryland and read about how ignition interlock programs work.

• Maryland DUI Penalties: First, Second and Third Offense
• DUI License Suspension in Maryland: Hearing Deadline and Hardship License
• Can a DUI Be Expunged in Maryland?
• Refusing a Breath or Blood Test in Maryland

Frequently Asked Questions