Connecticut · DUI · Checked October 2026
Refusing a Breath or Blood Test in Connecticut
Refusing a Breath or Blood Test in Connecticut: What Are the Rules?
What happens if you refuse a breath or blood test in Connecticut.
- Refusal penalty
- 45-day administrative suspension followed by interlock for 1 year (first refusal), 2 years (second) or 3 years (third or later); evidence of the refusal is admissible in the criminal case
- License suspension for refusing
- 45 days; then interlock for 1 year (first), 2 years (second), 3 years (third or later), regardless of age
- Deadline to challenge
- 7 days
Refusal Penalties in Connecticut
45-day administrative suspension followed by interlock for 1 year (first refusal), 2 years (second) or 3 years (third or later); evidence of the refusal is admissible in the criminal caseConn. Gen. Stat. § 14-227b(b), (i)(2)(C); § 14-227a(e)
License Suspension for Refusing in Connecticut
45 days; then interlock for 1 year (first), 2 years (second), 3 years (third or later), regardless of ageConn. Gen. Stat. § 14-227b(e), (f), (g), (i)
Official source: license suspension for refusing (Connecticut)
More on DUI Law in Connecticut
See the full overview of DUI laws in Connecticut and read about implied consent laws in every state.
This page summarizes Connecticut law from official sources, checked October 2026. It isn't legal advice; a lawyer licensed in Connecticut can advise on your case.
Frequently Asked Questions
What Happens if You Refuse a Breath Test in Connecticut?
45-day administrative suspension followed by interlock for 1 year (first refusal), 2 years (second) or 3 years (third or later); evidence of the refusal is admissible in the criminal case
How Long Is the Suspension for Refusing?
45 days; then interlock for 1 year (first), 2 years (second), 3 years (third or later), regardless of age