Maryland · DUI · Checked October 2026

Refusing a Breath or Blood Test in Maryland

Refusing a Breath or Blood Test in Maryland: What Are the Rules?

What happens if you refuse a breath or blood test in Maryland.

Refusal penalty
Administrative suspension of 270 days for a first refusal and 2 years for a second or later refusal; a modified suspension or restricted license is available only through 1 year in the Ignition Interlock System Program; if convicted and the refusal is proven, up to 2 more months jail and a $500 fine
License suspension for refusing
270 days (first), 2 years (second or later)
Deadline to challenge
10 days

Refusal Penalties in Maryland

administrative suspension of 270 days for a first refusal and 2 years for a second or later refusal; a modified suspension or restricted license is available only through 1 year in the Ignition Interlock System Program; if convicted and the refusal is proven, up to 2 more months jail and a $500 fineMd. Code, Transp. § 16-205.1(a)(2), (b)(1)(i)5, (p); § 21-902(g)

Official source: refusal penalties (Maryland)

License Suspension for Refusing in Maryland

270 days (first), 2 years (second or later)Md. Code, Transp. § 16-205.1(b)(1)(i), (b)(3)(iv)-(vi), (f)(1), (f)(5), (f)(6), (g)

Official source: license suspension for refusing (Maryland)

More on DUI Law in Maryland

See the full overview of DUI laws in Maryland and read about implied consent laws in every state.

This page summarizes Maryland law from official sources, checked October 2026. It isn't legal advice; a lawyer licensed in Maryland can advise on your case.

Frequently Asked Questions

What Happens if You Refuse a Breath Test in Maryland?

administrative suspension of 270 days for a first refusal and 2 years for a second or later refusal; a modified suspension or restricted license is available only through 1 year in the Ignition Interlock System Program; if convicted and the refusal is proven, up to 2 more months jail and a $500 fine

How Long Is the Suspension for Refusing?

270 days (first), 2 years (second or later)

Sources

  1. Implied consent: Md. Code, Transp. § 16-205.1(a)(2), (b)(1)(i)5, (p); § 21-902(g)

dui.help is an independent guide, not a law firm or a government agency, and doesn't give legal advice. For advice on your case, talk to a lawyer licensed in your state; your state bar can refer you, and if you can't afford a lawyer, ask the court about a public defender.