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Connecticut · DUI

Connecticut DUI laws and penalties

Connecticut's legal BAC limit is 0.08%. For a first offense, Connecticut's statute provides jail of 48 hours to 6 months, a fine of $500 to $1,000, and a license suspension of 45 days. The license hearing, the ignition interlock rule and the statute behind every figure are below.

Figures read from official pages on .

Connecticut DUI laws at a glance

Legal BAC limit
0.08%
Standard US limit
Enhanced penalty BAC
None
No higher tier in the law
Zero tolerance (under 21)
0.02%
Limit for drivers under 21
Lookback period
10 years
Prior DUI offenses that count

License hearing: ask within 7 days

Contact the DMV to schedule the hearing within 7 days of the date the suspension notice is mailed. Count the days with the license-hearing window calculator.
Ignition interlock required after a first conviction

Higher BAC level. No high-BAC tier: penalties depend on prior convictions within ten years.

Ignition interlock. A condition of restoring the license after every first conviction (one year).

Connecticut has no high-BAC tier; penalties turn on prior convictions within ten years. A first conviction carries a 45-day suspension and a one-year interlock period, and the 48-hour jail minimum can be replaced by a fully suspended sentence with probation and 100 hours of community service.

01Penalties

Connecticut DUI penalties

Statutory ranges for standard DUI convictions (no accident, no minor in vehicle).
Connecticut statutory DUI penalties, first and second offense
Penalty1st offense2nd offense
Jail (minimum)48 hours120 days
Jail (maximum)6 months2 years
Fine (minimum)$500$1,000
Fine (maximum)$1,000$4,000
License suspension45 days45 days

Statutory ranges only. Actual outcomes vary by county, judge, and attorney. Does not include court fees, surcharges, or program costs.

02Compare

How Connecticut compares

Of the 49 states with a confirmed BAC limit, 48 (Connecticut among them) use 0.08%; Utah has 0.05%.

On this site's reading of the statutes, of the 49 states with a confirmed rule, 21 require an ignition interlock after every first conviction, 18 in some cases and 8 leave it to the judge; 2 do not require one. Connecticut requires one after every first conviction.

The 40 states with a fixed deadline give from 6 to 90 days to ask for a license hearing (the middle one is 10); Connecticut gives 7.

Connecticut and the states that border it, first-offense figures side by side
StateBAC limitHearing requestInterlock, first offenseJail, first offenseFine, first offenseLicense, first offense
Connecticut (this page)0.08%7 daysRequired48 hours to 6 months$500 to $1,00045 days
Massachusetts0.08%15 daysIn some casesUp to 2.5 years$500 to $5,0001 year
New York0.08%No fixed deadlineRequiredUp to 1 year$500 to $1,0006 months minimum revocation
Rhode Island0.08%No fixed deadlineAt the judge's discretionUp to 1 year$100 to $30030 days to 180 days

Every figure is the statute's own, read from the same kind of page. See DUI laws and penalties for all 50 states.

03The process

How a DUI case moves through the system in Connecticut

The typical sequence, in general terms. Timing and details differ by county and by case.
  1. Arrest and booking

    Police arrest a driver on suspicion of DUI and take the person to the local jail, where booking records the arrest, the charge and the times.

  2. Release

    A person is released after posting bail, on their own recognizance, or after a hold. Amounts and timing differ by county.

  3. License action

    Contact the DMV to schedule the hearing within 7 days of the date the suspension notice is mailed.

  4. Arraignment

    The first court appearance, where the charge is read and a plea (guilty, not guilty or no contest) is entered.

  5. Pretrial resolution

    A case can end in a plea to a reduced charge, in a diversion or deferred program where the state has one, in a trial, or in a dismissal, depending on the state and the facts.

  6. Sentencing or trial

    For a first offense, Connecticut's statute provides jail of 48 hours to 6 months, a fine of $500 to $1,000, and a license suspension of 45 days. See the penalties table above.

04Sources

Where Connecticut's figures come from

Each figure was read on the official page linked here on Oct 26, 2026, and the quoted words were checked against the page the day it was read. The exact words are below so you can check them. Found a mistake? Write to hello@duiarrested.com with the state and the figure.
  • Conn. Gen. Stat. § 14-227a(a) (cga.ct.gov)Main statute · BAC limit, age 21 and over · Higher BAC level · Lookback period · License hearing request · Ignition interlock, first offense · First offense: jail, minimum · First offense: jail, maximum · First offense: fine, minimum · First offense: fine, maximum · First offense: license · Second offense: jail, minimum · Second offense: jail, maximum · Second offense: fine, minimum · Second offense: fine, maximum · Second offense: license
  • Conn. Gen. Stat. § 14-227g(a) (cga.ct.gov)BAC limit under 21
Show the exact words behind each figure
Main statute

Conn. Gen. Stat. § 14-227a

Conn. Gen. Stat. § 14-227a(a)

Sec. 14-227a. Operation while under the influence of liquor or drug or while having an elevated blood alcohol content.
BAC limit, age 21 and over

0.08%

Conn. Gen. Stat. § 14-227a(a)

means a ratio of alcohol in the blood of such person that is eight-hundredths of one per cent or more of alcohol, by weight
Higher BAC level

None set by the law

Conn. Gen. Stat. § 14-227a

(g) Penalties for operation while under the influence. Any person who violates any provision of subsection (a) of this section shall: (1) For conviction of a first violation, (A) be fined not less than five hundred dollars or more than one thousand dollars, (B) be (i) imprisoned not more than six months, forty-eight consecutive hours of which may not be suspended or reduced in any manner ... (2) For conviction of a second violation within ten years after a prior conviction for the same offense, (A) be fined not less than one thousand dollars or more than four thousand dollars
BAC limit under 21

0.02%

Conn. Gen. Stat. § 14-227g(a)

No person who is less than twenty-one years of age shall operate a motor vehicle while the ratio of alcohol in the blood of such person is two-hundredths of one per cent or more of alcohol, by weight.
Lookback period

10 years

Conn. Gen. Stat. § 14-227a(g)(2)

For conviction of a second violation within ten years after a prior conviction for the same offense
License hearing request

7 days

Conn. Gen. Stat. § 14-227b(e)(1)

may schedule such hearing by contacting the Department of Motor Vehicles not later than seven days after the date of mailing of such suspension notice.
Ignition interlock, first offense

Required after a first conviction

Conn. Gen. Stat. § 14-227a(g)(1)(C)(i)

as a condition for the restoration of such license, be required to install an ignition interlock device on each motor vehicle owned or operated by such person and, upon such restoration, be prohibited for the one-year period following such restoration from operating a motor vehicle unless such motor vehicle is equipped with a functioning, approved ignition interlock device
First offense: jail, minimum

48 hours

Conn. Gen. Stat. § 14-227a(g)(1)(B)(i)

imprisoned not more than six months, forty-eight consecutive hours of which may not be suspended or reduced in any manner
First offense: jail, maximum

6 months

Conn. Gen. Stat. § 14-227a(g)(1)(B)

Same passage as above.

First offense: fine, minimum

$500

Conn. Gen. Stat. § 14-227a(g)(1)(A)

be fined not less than five hundred dollars or more than one thousand dollars
First offense: fine, maximum

$1,000

Conn. Gen. Stat. § 14-227a(g)(1)(A)

Same passage as above.

First offense: license

45 days

Conn. Gen. Stat. § 14-227a(g)(1)(C)(i)

suspended for forty-five days and, as a condition for the restoration of such license, be required to install an ignition interlock device on each motor vehicle owned or operated by such person and, upon such restoration, be prohibited for the one-year period
Second offense: jail, minimum

120 days

Conn. Gen. Stat. § 14-227a(g)(2)(B)

be imprisoned not more than two years, one hundred twenty consecutive days of which may not be suspended or reduced in any manner
Second offense: jail, maximum

2 years

Conn. Gen. Stat. § 14-227a(g)(2)(B)

Same passage as above.

Second offense: fine, minimum

$1,000

Conn. Gen. Stat. § 14-227a(g)(2)(A)

be fined not less than one thousand dollars or more than four thousand dollars
Second offense: fine, maximum

$4,000

Conn. Gen. Stat. § 14-227a(g)(2)(A)

Same passage as above.

Second offense: license

45 days

Conn. Gen. Stat. § 14-227a(g)(2)(C)(i)

suspended for forty-five days and, as a condition for the restoration of such license, be required to install an ignition interlock device on each motor vehicle owned or operated by such person and, upon such restoration, be prohibited for the three-year period

05Related

Related pages

Note: This page summarizes state statutes and published figures. It is general information, not legal advice, and it may be out of date or incomplete. Penalty ranges are statutory ranges; actual outcomes depend on the case. See the Disclaimer.