Start with Md. Code Ann., Transp. § 16-205.1. In Maryland, A first refusal typically triggers a 270-day administrative license suspension; subsequent refusals carry longer suspensions, with a right to an Office of Administrative Hearings review if timely requested. Refusal can enhance criminal DUI/DWI penalties and affect ignition-interlock participation. Birchfield permits criminal penalties for breath refusal; blood draws for criminal punishment generally require a warrant. That is the question this guide answers for refusing a breathalyzer. Maryland drivers consent to breath or blood testing when detained on suspicion of alcohol- or drug-impaired driving. Officers must read the DR-15 advice of rights explaining the consequences of refusal.
Implied consent in Maryland
Maryland drivers consent to breath or blood testing when detained on suspicion of alcohol- or drug-impaired driving. Officers must read the DR-15 advice of rights explaining the consequences of refusal.
Implied consent is not the same as a Miranda warning. Officers typically must advise of the consequences of refusal before requesting a chemical test. Failure to give a required advisory can affect whether the administrative suspension sticks — a frequent issue in Maryland appellate opinions.
License suspension and administrative hearings
A first refusal typically triggers a 270-day administrative license suspension; subsequent refusals carry longer suspensions, with a right to an Office of Administrative Hearings review if timely requested.
The DMV / administrative track often runs separately from the criminal DUI case. Missing the short window to request an administrative hearing can lock in a suspension even if the criminal charge is later reduced or dismissed. Always calendar the administrative deadline the same day as the arrest.
How the Maryland rule applies
Apply the Maryland authorities in order. The facts are simplified so the statute and the standard are visible.
A driver is arrested for DUI in Maryland and refuses the evidentiary chemical test after the implied-consent advisory.
- Identify the administrative consequence under Md. Code Ann., Transp. § 16-205.1: A first refusal typically triggers a 270-day administrative license suspension; subsequent refusals carry longer suspensions, with a right to an Office of Administrative Hearings review if timely requested.
- Separate that track from the criminal case: Refusal can enhance criminal DUI/DWI penalties and affect ignition-interlock participation. Birchfield permits criminal penalties for breath refusal; blood draws for criminal punishment generally require a warrant.
- Ask whether the refusal can be argued to the jury: Refusal is admissible in the criminal case and may be argued as consciousness of guilt.
- If the request is for blood rather than breath, apply the warrant rule: Breath testing is the usual roadside and station request; blood draws commonly proceed by warrant, especially for drug impairment or crash cases.
In Maryland the refusal question is answered first by Md. Code Ann., Transp. § 16-205.1, then by the administrative deadline and the criminal case.
Criminal consequences of refusal
Refusal can enhance criminal DUI/DWI penalties and affect ignition-interlock participation. Birchfield permits criminal penalties for breath refusal; blood draws for criminal punishment generally require a warrant.
Under Birchfield v. North Dakota, the Fourth Amendment allows criminal penalties for refusing a warrantless breath test incident to a lawful DUI arrest, but generally requires a warrant (or a recognized exception) before the State may impose criminal penalties for refusing a blood draw. Missouri v. McNeely rejected a per-se exigency based solely on natural dissipation of alcohol in the blood. Maryland statutes and case law implement those federal baselines with local detail.
Can refusal be used as evidence?
Refusal is admissible in the criminal case and may be argued as consciousness of guilt.
Prosecutors often argue consciousness of guilt; defense counsel emphasize confusion, inadequate advisories, or medical inability to provide a sample. The precise jury instruction language is state-specific — search Maryland opinions for “refusal” and “implied consent.”
Breath tests versus blood tests
Breath testing is the usual roadside and station request; blood draws commonly proceed by warrant, especially for drug impairment or crash cases.
Practical tip: a driver who refuses breath may still face a warrant-backed blood draw. Refusal does not create a permanent shield against chemical evidence; it mainly adds administrative (and sometimes criminal) consequences on top of the underlying DUI case.
Practical tips
- Ask whether the stop and arrest were lawful — implied consent usually requires a lawful DUI arrest first.
- Diary the administrative hearing deadline immediately.
- Do not confuse portable roadside breath screens with the evidentiary breathalyzer at the station; statutes often treat them differently.
- Research Maryland opinions on implied consent, refusal, and license revocation in LawDiver before a contested DMV hearing.
Case law: implied consent and refusal in Maryland
Caroleann Z. WILLIS v. STATE of Maryland
Caroleann Z. WILLIS v. STATE of Maryland, 302 Md. 363 (1985)
…initial matter we note that many jurisdictions have enacted implied consent laws that contain an express time limit within which a chemical test for intoxication must be administered. In some jurisdictions, the triggering event is the offense or violation, 5 the arrest of the accused, 6 the driving, 7 the event to be proved, 8 or a combination thereof. In other jurisdictions, t…
Practitioners open Caroleann Z. WILLIS v. STATE of Maryland when Maryland implied consent / breathalyzer refusal turns on the distinction in this sentence: "In some jurisdictions, the triggering event is the offense or violation, 5 the arrest of the accused, 6 the driving, 7 the event to be proved, 8 or a combination thereof." Do not lift it out of the facts the court was deciding.
MOTOR VEHICLE ADMINISTRATION v. Scott H. SHEPARD
MOTOR VEHICLE ADMINISTRATION v. Scott H. SHEPARD, 399 Md. 241 (2007)
…of the Transportation Article, commonly known as Maryland’s Implied Consent Law, provides the statutory structure for suspending the license of a driver who refuses to submit to testing for alcohol concentration. Section 16-205.1(a)(2) states as follows: “Any person who drives or attempts to drive a motor vehicle on a highway or on any private property that is used by the publi…
Maryland opinions such as MOTOR VEHICLE ADMINISTRATION v. Scott H. SHEPARD are cited where implied consent / breathalyzer refusal is disputed. The court stated: "Transportation Article, commonly known as Maryland’s Implied Consent Law, provides the statutory structure for suspending the license of a driver who refuses to submit to testing for alcohol concentration. Section 16-205." That is the language to brief; the rest of the decision supplies the procedural posture.
MOTOR VEHICLE ADMINISTRATION v. David Walter RICHARDS, Jr.
MOTOR VEHICLE ADMINISTRATION v. David Walter RICHARDS, Jr., 356 Md. 356 (1999)
…egal effect and constitutional ramifications of Maryland’s “implied consent, administrative per se ” motor vehicle law, codified as § 16-205.1 of the Transportation Article. In 1988, the General Assembly established a Task Force on Drunk and Drugged Driving “because ‘the problem of drunk and drugged driving is of continuing concern to the citizens of the State of Maryland.’ ” M…
On implied consent / breathalyzer refusal, MOTOR VEHICLE ADMINISTRATION v. David Walter RICHARDS, Jr. speaks to the Maryland dispute in this passage: "Maryland’s “implied consent, administrative per se ” motor vehicle law, codified as § 16-205.1 of the Transportation Article." The surrounding opinion shows how the court applied that language to the record.
STATE of Maryland v. Robert Buck WERKHEISER
STATE of Maryland v. Robert Buck WERKHEISER, 299 Md. 529 (1984)
…of drivers’ resistance to such tests, states have adopted “implied consent” laws. Annot. 72 A.L.R.3d 325. The aforementioned statutes contain Maryland’s “implied *534 consent” provisions. 3 The Transp. Art., § 16-205.1(a), provides: “Implied consent to chemical test. — Any person who drives or attempts to drive a motor vehicle on a highway or on any private property that is us…
STATE of Maryland v. Robert Buck WERKHEISER is worth reading on Maryland implied consent / breathalyzer refusal because the court put the point in its own words: "Annot. 72 A.L.R.3d 325. The aforementioned statutes contain Maryland’s “implied *534 consent” provisions. 3 The Transp. Art., § 16-205.1(a), provides: “Implied consent to chemical test." Use that passage as the starting point, then read the facts that precede it.
Babak NAJAFI v. MOTOR VEHICLE ADMINISTRATION
Babak NAJAFI v. MOTOR VEHICLE ADMINISTRATION, 418 Md. 164 (2011)
…tes’s refusal to submit to a chemical breath test under the implied consent statute, Section 16-205.1 of the Transportation Article, Maryland Code (1977, 1984 Repl.Vol.). Sites agreed to take a chemical breath test and signed the consent form. According to Sites’s testimony at trial, then, after arriving at the police station, he asked to speak with his attorney three times, bu…
Practitioners open Babak NAJAFI v. MOTOR VEHICLE ADMINISTRATION when Maryland implied consent / breathalyzer refusal turns on the distinction in this sentence: "Section 16-205.1 of the Transportation Article, Maryland Code (1977, 1984 Repl.Vol.). Sites agreed to take a chemical breath test and signed the consent form." Do not lift it out of the facts the court was deciding.
MOTOR VEHICLE ADMINISTRATION v. April Marie DEERING
MOTOR VEHICLE ADMINISTRATION v. April Marie DEERING, 438 Md. 611 (2014)
…as part of the Maryland Vehicle Law a statute known as “the implied consent, administrative per se law.” That statute incorporates “implied consent” in that it provides that any individual who drives a vehicle in Maryland is deemed to have consented to take a chemical test — usually, a breath test — to measure blood alcohol concentration, if stopped by a police officer with rea…
On implied consent / breathalyzer refusal, MOTOR VEHICLE ADMINISTRATION v. April Marie DEERING speaks to the Maryland dispute in this passage: "Maryland Vehicle Law a statute known as “the implied consent, administrative per se law." The surrounding opinion shows how the court applied that language to the record.
Portillo Funes v. State
Portillo Funes v. State, 469 Md. 438 (2020)
…INAL LAW—DRIVING WHILE IMPAIRED—DRIVING UNDER THE INFLUENCE—IMPLIED CONSENT—ADVICE OF RIGHTS—DR-15 FORM— FOREIGN LANGUAGE ADVISEMENT The Court of Appeals held that, when providing advice of rights prior to administering a chemical breath test, police officers must use methods that reasonably convey the warnings and rights in the implied consent statute, § 16-205.1 of the Transp…
Practitioners open Portillo Funes v. State when Maryland implied consent / breathalyzer refusal turns on the distinction in this sentence: "OF RIGHTS—DR-15 FORM— FOREIGN LANGUAGE ADVISEMENT The Court of Appeals held that, when providing advice of rights prior to administering a chemical breath test, police officers must use methods that reasonably convey the warnings and rights in the implied consent statute, § 16-205." Do not lift it out of the facts the court was deciding.
Key takeaways
- Primary authority: Md. Code Ann., Transp. § 16-205.1.
- Administrative hit: A first refusal typically triggers a 270-day administrative license suspension; subsequent refusals carry longer suspensions, with a right to an Office of Administrative Hearings review if timely requested.
- Criminal exposure: Refusal can enhance criminal DUI/DWI penalties and affect ignition-interlock participation.
- Evidence: Refusal is admissible in the criminal case and may be argued as consciousness of guilt.
- Blood vs. breath: federal Supreme Court doctrine in Birchfield and McNeely still frames warrant rules.
Frequently asked questions
What happens if I refuse a breathalyzer in Maryland?
A first refusal typically triggers a 270-day administrative license suspension; subsequent refusals carry longer suspensions, with a right to an Office of Administrative Hearings review if timely requested. Refusal can enhance criminal DUI/DWI penalties and affect ignition-interlock participation.
Is refusal a separate crime in Maryland?
Refusal can enhance criminal DUI/DWI penalties and affect ignition-interlock participation. Birchfield permits criminal penalties for breath refusal; blood draws for criminal punishment generally require a warrant.
Will the prosecutor tell the jury I refused?
Refusal is admissible in the criminal case and may be argued as consciousness of guilt.
Do I need a warrant for a blood draw?
Breath testing is the usual roadside and station request; blood draws commonly proceed by warrant, especially for drug impairment or crash cases. See also Birchfield and McNeely linked above.