AUTOPUTER.COM Ignition Interlock Laws Of 50 States

Alabama §32-5A-191 effective September 1, 2012. Alabama's tougher DUI law requires any first-time or repeat drunken driver with a blood-alcohol level of 0.15 or higher, or causes an injury to another person, or has a child of 14 years old or younger to install an ignition interlock device in their vehicle. First-time and second-time offenders must keep the ignition interlock device on their vehicle for two years and carry licenses that show their driving privileges hinge on whether they have installed devices. A third DUI conviction requires the driver must use the ignition interlock device for three years. A fourth DUI conviction requires the driver must use the ignition interlock device for five years.

Alaska* §§28.35.030(b) 12.55.102 The Court shall require any one who is convicted of DUI to equip any motor vehicle the person operates with an ignition interlock device after the person regains the driving privilege. Minimum of 6 months on first conviction, 12 months upon second conviction and 18 months for third conviction. Criminal sanctions exist for circumventing or tampering devices.

Arizona* §28-1381 §28-1383 §§ 28-1401, 28-1402, 28-1321P §§28-1381(K)(4), 28-1382 (D)(5) and (F)(5),28-1383(J)(1), and 28-3319 (D)and(E). The court shall require any persons who are convicted of DUI to equip any motor vehicle the person operates with an ignition interlock device . The court shall also require offenders to equip vehicles operated with ignition interlock devices for 1 year at the conclusion of the license suspension/revocation period or on the date of conviction whichever is later if (1) a second drunk driving offense occurs within 84 months; (2) a third or subsequent drunk-driving offense (aggravated driving under the influence ); (3) a drunk-driving offense where the offender is driving on a suspended or revoked license for a prior DWI offense or a prior admin. per se violation (AGDWI); (4) a first or second .15 offense; or, (5) a drunk-driving child endangerment offense.

Arkansas* §5-65-104(a)(1) §5-65-118 A person arrested for a first offense DWI are not entitled to a restricted permit but are allowed an ignition interlock restricted license. In addition to any other sanction for a DWI offense, the court (1) may for a first or second offense and (2) must, for a third or subsequent offense, if the offender can afford it, require only operating a motor vehicle equipped with an ignition interlock device. This requirement continues for up to 1 year after the person's license is no longer suspended or revoked. If restricted licenses have been issued, the required use of an ignition interlock device “shall be for at least the remaining time period of the original suspension” period. Persons arrested for operating a motor vehicle while intoxicated by the use of a controlled substance or refusal to submit to testing are ineligible for an ignition interlock restricted driving permit.

California* Vehicle Code §§ 14601.2, 23556, Vehicle Code §§13352(a) and 23575(f)(1) Effective July 1, 2010, California legislation requires DMV to conduct an IID pilot program. The program requires all persons convicted of driving under the influence (DUI) under VC §§23152 or 23153, or Penal Code (PC) §191.5(b), in one of the four pilot counties (Alameda, Los Angeles, Sacramento, and Tulare) to install a certified ignition interlock device (IID) on each vehicle that he/she owns or operates. In all other California counties, the court may require that a person convicted of a first DUI offense install a certified ignition interlock device on any vehicle that the person owns or operates and prohibit that person from operating a motor vehicle unless that vehicle is equipped with a functioning, certified ignition interlock device. The court shall give heightened consideration to applying this sanction to a first offense violator with 0.15 percent or more, by weight, of alcohol in his or her blood at arrest, or with two or more prior moving traffic violations, or to persons who refused the chemical tests at arrest. If the court orders the ignition interlock device restriction, the term shall be determined by the court for a period not to exceed three years from the date of conviction.

Colorado §42-2-132.5 §42-2-125 (2.3)-(2.4) §42-2-132.5(1.5) For a first offense, offender's license will be revoked for 9 months, with the option after one month, to install an ignition interlock device and receive a limited license. A person with greater than .17 blood alcohol content is classified as a “persistent drunk driver” and must use an ignition interlock for at least one year. For either (1) an impaired, under the influence or illegal per se offense or (2) a habitual offender offense related to one of these alcohol offenses where there has been a previous alcohol driving offense conviction of any type within a 5-year period, an offender must install ignition interlock devices on the vehicles that person drives and is required to hold a restricted license for at least 1 year prior to full license reinstatement. A person who has had his driving privileges revoked for more than 1 year either for (1) driving while either impaired, under the influence or illegal per se or (2) an admin per se violation, is eligible for early license reinstatement with driving restrictions with the use of an ignition interlock device. The restrictions remain in effect for “the longer of one year or the total time period remaining on the license restraint prior to early reinstatement.”

Connecticut §14-227j §14-227a(i) §53a-56b Any person who has been arrested for a violation may be ordered by the court not to operate any motor vehicle unless such motor vehicle is equipped with an ignition interlock device. The Commissioner of Motor Vehicles shall permit a person whose license has been suspended to operate a motor vehicle if such person has served not less than one year of such suspension, and such person has installed an approved ignition interlock device in each motor vehicle owned or to be operated by such person.

Delaware 21 §§2702(e) and 4177F 21 §4177G First offenders who have refused to submit to a chemical test and second or subsequent offenders are eligible for a regular Class D license via the licensing agency if they agree to install and use ignition interlock devices on the vehicles they operate. If the original revocation was for 12 months, a person must agree to participate in the program for 14 months whereupon a conditional license is available after 1 month. If the original revocation was for 12 months where there are no prior offenses but there is a refusal to submit to a chemical test, a person must agree to participate in the program for 14 months whereupon a conditional license is available after 2 months. If the original revocation was for 18 months, a person must agree to participate in the program for 20 months whereupon a conditional license is available after 6 months. If the original revocation was for 24 months, a person must agree to participate in the program for 26 months whereupon a conditional license is available after 12 months. Persons who have been convicted for drunk-driving offenses related to death or serious injury or who are under license suspension or revocation are not eligible for this voluntary program. Participation in the ignition interlock program is mandatory for all subsequent offenders.

District of Columbia 50-2201.05a Available for 2nd or subsequent conviction.

Florida §322.2715(3) §316.193(2)(a)(3) §316.193(2)(b) and (4)(c) §322.2715(1) §316.193 §322.271(2)(d) Use of ignition interlock device is mandatory for at least 1 year upon a second conviction if driver qualifies for a permanent or restricted license and for at least 2 years for any third conviction and for other extenuating circumstances.. If a first-time DUI offender was accompanied in the vehicle by a person younger than 18 years of age, the person shall have the ignition interlock device installed for 6 months for the first offense and for at least 2 years for a second offense. A DWI defendant who is placed on probation and who is otherwise permitted to operate a motor vehicle shall be required to operate vehicles equipped with ignition interlock devices for not less than 6 months. In addition, the licensing agency may require any person seeking reinstatement of their driving privileges to use an ignition interlock device on their vehicle. This requirement can apply to either occupational restricted or regular driving privileges.

Georgia §40-6-391(c)(1)(E) §§42-8-111 and 42-8-112 §42-8-112(b)(3) Second and subsequent offenders on probation must install ignition interlock devices on all of the vehicles they own and only operate vehicles equipped with such devices. Use begins when the offender is issued limited driving privileges and must last for 6 months. If habitual offender status is based on two or more drunk-driving offense convictions and the offender is placed on probation, the use of a probationary license is conditioned of the use of an ignition interlock device for 6 months after the probationary license has been issued.

Hawaii* 2008 H.B. 3377 For first offense: One-year revocation of license and privilege to operate a vehicle during the revocation period and installation during the revocation period of an ignition interlock device on any vehicle operated by the person For second offense within five years or first conviction if Highly Intoxicated: A two-year revocation of license and privilege to operate a vehicle during the revocation period and installation during the revocation period of an ignition interlock device on any vehicle operated by the person. Goes into effect 2011.

Idaho §§18-8004A(2)(d) and (3)(e), 18-8004C(2)(e), 18-8005(4)(f) and (5)(e) and 18-8008(1) and (2) For any person under 21, a second and subsequent offense requires ignition interlock following the mandatory license suspension period. Ignition interlock installation is mandatory following the mandatory license suspension period for second and subsequent violators who had BAC over .20 at time of arrest. Any person who has been found guilty of DUI within the prior ten years, installation of an ignition interlock is mandatory.

Illinois* 625 ILCS 5/11-501.01 The court shall require any persons who are convicted of DUI to equip any motor vehicle the person operates with an ignition interlock device during the period of statutory license suspension.

Indiana IC 9-30-8-1 and 9-30-5-16 IC 9-30-5-10(c)-(d) As a condition for obtaining probationary driving privileges, the court may require a defendant to use only vehicles equipped with ignition interlock devices for a term established by the court with the limitation that such term cannot exceed the maximum prison sentence; violation of this requirement is a Class A infraction. Other provisions of law also provide that a person convicted of an illegal per se/intoxicated offense (within 5 years or within 10 years but more than 5 years of a previous conviction) may be granted probationary (restricted) driving privileges on the condition that the person only operate vehicles equipped with ignition interlock devices.

Iowa §§321J.17 and 321J.4 §§321J.9(2)(b) and 321J.20(6) A DWI offender may be required to install ignition interlock devices on the vehicles they own. A second or subsequent offender, after the mandatory license revocation period, may be granted restricted driving privileges provided they install ignition interlock devices on all of the vehicles they own. Prior to reinstating the driving privileges to a second or subsequent offender, the State shall require such person to install ignition interlock devices on all of the vehicles they own for 1 year. For either a first or subsequent refusal, a restricted license may be issued by the licensing agency provided the minimum period of license revocation has expired. A person must install an ignition interlock system on the vehicle(s) they operate as a condition for obtaining a restricted license. A person who tampers with or circumvents an ignition interlock device installed as required in this chapter and while the requirement for the ignition interlock device is in effect commits a serious misdemeanor.

Kansas §8-1014(b)(2) §§8-292 and 8-1015 For a first offense, a person’s driving privileges may be restricted to operating a motor vehicle for educational, employment and medical purposes for 90 days to 1 year—or the court may require the person to operate only vehicles equipped with an ignition interlock device. Ignition interlock device use is required for one year after license reinstatement for second, third, or fourth offense. Required for high BAC and 1st test refusal after license suspension. For a second offense, a person may apply for ignition interlock restriction after 45 days or license suspension. Ignition interlock required for high BAC and 1st test refusal convictions after license suspension.

Kentucky §189A.340 §189A.410 At the conclusion of an offender’s license revocation period, the court may require that person to operate only motor vehicles equipped with ignition interlock devices (with the exception of an employer’s vehicles). This requirement lasts for the following periods following license revocation: first offense – 6 months; second offense (within 5 years) – 12 months; third or subsequent offense (within 5 years) – 30 months. Second or subsequent offenders must wait at least 1 year from the start of the license revocation period before applying to the court for permission to use an ignition interlock device. This requirement may be used as an alternative to impounding the license plates of a second or subsequent drunk-driving offender. The court may grant hardship driving privileges for the purpose of employment, education, medical care, alcohol/substance abuse education programs or other court ordered counseling programs. This privilege may be conditioned on the offender operating motor vehicles equipped with ignition interlock devices.

Louisiana* §32:378.2(A)(2)(ii) §14:98K(1) For the offense, upon first or second conviction, or entry of a plea of guilty or nolo contendere, the offender’s vehicle must be equipped with a functioning ignition interlock device to be issued a restricted license. First offense with a BAC of 0.20 or more results in suspension for at least 2 years. But a restricted license may be granted during the entire period of suspension with installation of ignition interlock.

Maine 29-A §2412-A, sub-§7 29-A §2411 29-A §2508 As a condition of license reinstatement the Secretary of State may require a person to install in the motor vehicle the person operates for a period of up to 2 years an ignition interlock device. The license of a person with 2 OUI offenses, convictions or adjudications may be reinstated after two years if the person installs for a period of 9 months an ignition interlock device approved by the Secretary of State in the motor vehicle the person operates. The license of a person with 3 OUI offenses, convictions or adjudications may be reinstated after 3 years if the person installs for a period of 3 years an ignition interlock device. The license of a person with 4 or more OUI offenses, convictions or adjudications may be reinstated after 4 years if the person installs for a period of 4 years an ignition interlock device approved by the Secretary of State in the motor vehicle the person operates.

Maryland Crim. Proc. §6-221 and Tran. §§27-107 and 27-108 Tran. §16-404.1 Tran. §§16-404(c)(3) and 16-404.1(4)(i) Tran. §16-404. 1(b)(4)(iii) As a condition of probation, the court may order a defendant for 1-3 years to operate only vehicles equipped with “ignition interlock” devices. If defendant registers a BAC of 0.15 or more, the court must order ignition interlock for at least one year. The licensing agency may establish an ignition interlock program for persons who have been convicted of alcohol related driving offenses. This program does not apply to persons who have been convicted of driving while under the influence of a controlled substance. A person who is subject to license suspension via the point system for a conviction of DWI may be issued a restricted license by participating in the Ignition Interlock Program. A person who is subject to license revocation following a conviction for either DWI or for DUI may have the license suspended in lieu of revocation by participating in the ignition interlock program. The suspension periods (or restricted license) imposed are the same as for DWI. A fourth or subsequent offender is considered an “habitual offender” and he cannot have his driving privileges restored until he has participated in this program for at least 24 months.

Massachusetts 90§24 (1)(c)(2) Offenders with more than one drunken-driving conviction are required to install an ignition interlock device on their vehicles for a period of 2 years as a condition of having their licenses reinstated.

Michigan §257.322(6), (7), (8) and (9) §257.625 (24) A person who has had his license revoked for any drunk-driving offense may, after the mandatory revocation period, be issued a restricted license instead of full driving privileges. If a restricted license is issued, the driver is limited to operating motor vehicles that are equipped with an ignition interlock device. The initial period for the use of such device is 1 year. Effective October 31, 2010 interlocks will be required for first-time DUI offenders convicted with a BAC of .17 or above.

Minnesota §171.306 §169A.275 (7) Ignition Interlock Pilot Program established and must continue until June 30, 2011. A judge is not required to sentence a person as provided in this section if the judge requires the person as a condition of probation to drive only motor vehicles equipped with an ignition interlock device meeting the standards described in section 171.306. (b) This subdivision expires July 1, 2011.

Mississippi §63-11-30 (2)(f) §63-11-31(2) For either an intoxicated or illegal per se drunk driving offense of a first offender, the court may, require such a person to only operate motor vehicles that are equipped with an ignition interlock device for not less than 1 month following license reinstatement. In the case of a second or subsequent offender, the court must require ignition interlock. Such a requirement is mandatory as a condition for granting limited (hardship) driving privileges for subsequent offenders.

Missouri V.A.M.S. 302.304 V.A.M.S. 577.600 When license is suspended or revoked ignition interlock is required to be maintained on all motor vehicles operated by the person for a period of not less than six months immediately following the date of reinstatement. A court may require that any person who is found guilty of or pleads guilty to a first intoxication-related traffic offense, and a court shall require that any person who is found guilty of or pleads guilty to a second or subsequent intoxication-related traffic offense, shall not operate any motor vehicle unless that vehicle is equipped with a functioning, certified ignition interlock device for a period of not less than six months from the date of reinstatement of the person's driver's license.

Montana §61-5-208(2) §61-8-731(3)(h) §61-5-208(3) §61-8-442 For a first offense, a court may restrict an offender to only operate motor vehicles that are equipped with ignition interlock devices. For either a second or subsequent offense, a defendant who is issued a probationary license is restricted to operating motor vehicles that are equipped with ignition interlock devices. For fourth or subsequent offenses, if an offender is permitted to operate motor vehicles as a condition of probation, such vehicles must be equipped with ignition interlock devices. Licensing action is stayed while participating in the ignition interlock program. The duration of this restriction is equal to the period of license suspension or revocation.

Nebraska* §60-498.02 §60-6,197.01 At the expiration of thirty days (sixty days if test refused) after an order of administrative license revocation for ninety days is entered, any person who submitted to a chemical test which disclosed the presence of a concentration of alcohol in violation of the statutory limit is eligible for an order to allow application for an ignition interlock permit to operate a motor vehicle equipped with an ignition interlock device upon presentation of sufficient evidence to the Department of Motor Vehicles that such a device is installed. As an alternative to vehicle disablement, the court shall order the convicted person, in order to operate a motor vehicle, to obtain an ignition interlock permit and install an ignition interlock device on each of the motor vehicles owned or operated by the convicted person if he or she was sentenced to an operator's license revocation of at least one year and has completed at least one year of such revocation. In addition to these restrictions, the court may require a person convicted of a second or subsequent violation to use a continuous alcohol monitoring device and abstain from alcohol use for a period of time not to exceed the maximum term of license revocation ordered by the court. A continuous alcohol monitoring device shall not be ordered for a person convicted of a second or subsequent violation unless the installation of an ignition interlock device is also required.

Nevada §484.3943(1) and (2) The court may or must require a defendant to install an ignition interlock as a condition for restricted driving privileges as follows: First offense – 3 to 6 months (discretionary); second offense – (no requirement); and, third and subsequent offense – 12 to 36 months (mandatory). The court may require a defendant to install an ignition interlock as a condition for the reinstatement of driving privileges. The period of use is determined by the court.

New Hampshire §265-A:36 §265:93 I-a, b Aggravated DWI or subsequent DWI offenders may be required to install an ignition interlock device on the vehicles owned or regularly used for 6 months to 2 years following license reinstatement. Interlock device required on any vehicle registered to a person who drives after a suspension or revocation resulting from a DWI offense.

New Jersey §§39:4-50(a)(1),(2) and (3) and 39:4-50.17 A first time offender with a blood alcohol content greater than .15 must install an ignition interlock device. Installation is mandatory for 6 months after the required period of license suspension has been served. After license suspension period has been completed, a person may be required to install an ignition interlock device on all of the motor vehicles he owns or operates. The device must be installed for the following periods: first offense—discretionary 6 months to 1 year (6 months required usage if ignition interlock use ordered); second or subsequent offense—mandatory ignition usage for 1 (mandatory) to 3 years.

New Mexico* §66-8-102(N) §66-5-35(A)(3) and (C), § 66-5-29 C. Persons who have been convicted of a misdemeanor drunk-driving offense shall be required, as a condition of probation, to operate only motor vehicles that are equipped with ignition interlock devices, as follows: (1) a period of one year, for a first offender; (2) a period of two years, for a second conviction; (3) a period of three years, for a third conviction; (4) for life for a fourth or subsequent conviction, except that five years from the date of conviction and every five years thereafter, the offender may apply to a district court for removal of the Interlock for good cause shown. Good cause may include alcohol screening and proof from the interlock vendor that the person has not had violations of the interlock device.

New York* V and T Law §1193(b) VT §1193(1-a)(c) Ignition interlock is required for all offenses during period of license revocation or a minimum of 6 months and thereafter by court order.

North Carolina §§20-17.8(a), (b) and (c) and 20-179.3(g3) and (g5) §20-17.8(c) Persons eligible for restricted driving privileges may be required to operate motor vehicles equipped with an ignition interlock device. This requirement is mandatory if the BAC was greater than .16 or if the person is a second or subsequent offender (within 7 years). After license restoration, required ignition interlock usage is as follows: (1) 1 year if license revocation was for 1 year; (2) 3 years if license revocation was for 4 years; and (3) 7 years if the license was permanently revoked but can be restored.

North Dakota §§39-06.1-11 and 39-08-01.3. The court or driver licensing agency may order a defendant to install an ignition interlock device on his vehicle. This requirement applies to the issuance of temporary restricted driving privileges. Ohio §4510.43 §4510.44 §2951.02(G)(2) and (3) If imposed, as a condition of probation by the court, offenders must obtain a specially marked driver’s license indicating they may only operate a vehicle equipped with such an ignition interlock device. For first and second offenses, the court may order a person to use ignition interlock devices when using an occupational license; for third and subsequent offenses, the court must require a person to use these devices when using an occupational license.

Oklahoma 47 §11-902 (D). 47§§ 754.1(B) and 755. §6-212.3 A person is guilty of Aggravated Driving if convicted of driving under the influence with a BAC > .15. Such a conviction requires ignition interlock use for a minimum of 30 days. License revocation may be modified upon a showing that no other adequate means of transportation exists. As a condition of modification, the driver must agree, except in certain circumstances, to only operate motor vehicles that are equipped with an ignition interlock device. A second or subsequent drunk driving conviction within 5 years requires installation of ignition interlock for at least 6 months.

Oregon §§813.602(1)(a), (1)(b) and (2) and 813.606. Persons convicted of DWI offenses shall have an ignition interlock device installed in their vehicles prior to being issued a hardship license. Offenders must operate motor vehicles equipped with ignition interlock devices for 6 months after the end of the license suspension or revocation period. The court may require the use of an ignition interlock device as part of a diversion agreement.

Pennsylvania 75 §3805(a) All vehicles owned by offenders may for a first offense and must for a subsequent one be equipped with ignition interlock devices for at least 1 year following license reinstatement.

Rhode Island §§31-27-2(d)(2) and (3) and 31-27-2.8 Any second offender may be required to operate motor vehicles equipped with ignition interlock devices from one to two years. Third or subsequent offender may be required to use these devices for 2 years. Requirements begin following the completion of any incarceration period.

South Carolina §56-5-2941 The Department of Motor Vehicles must require the person, if he/she is a subsequent offender to have installed on any motor vehicle the person drives an ignition interlock device. The DMV may waive the requirements of this section if it finds that the offender has a medical condition that makes him incapable of properly operating the installed device. The length of time that an interlock device is required to be affixed to a motor vehicle following the completion of a period of license suspension imposed on the offender is two years for a second offense, three years for a third offense, and the remainder of the offender's life for a fourth or subsequent offense. Notwithstanding the pleadings, for purposes of a second or a subsequent offense, the specified length of time that an interlock device is required to be affixed to a motor vehicle is based on the Department of Motor Vehicle's records for offenses

South Dakota § 1-11-24 NEW! South Dakota's approach to prevention and enforcement of drunken driving relies heavily on the twice-daily breath tests of the 24/7 sobriety program and multiple treatment opportunities. A pilot program was successfully completed in 2012 using ignition interlock devices and the device will be available in 2013 as part of South Dakota's unique 24/7 sobriety program.

Tennessee §55-10-412 §55-10-412(d) §§55-10-412(i) 55-10-403(a)(1)(A)(iii) DUI offender may be required to operate vehicles equipped with ignition interlock devices for up to one year after a person’s license is no longer suspended or revoked. Ignition interlocks are required for first time offenders if they were accompanied by minors, involved in an accident, violated implied consent law, or had a blood alcohol content greater than .15

Texas Penal Code §49.09(g) §521.241 et seq. Code of Criminal Procedure 42.12 For second or subsequent offenses or >.15 B.A.C.: The court must order offender to install ignition interlock devices on all of the motor vehicles he owns for 1 year following a period of license suspension. When applying for an occupational license, the court may require a first offender and must require subsequent offenders within 10 years to only operate vehicles that are equipped with ignition interlock devices. Unless the interests of justice indicate otherwise, a magistrate shall require an offender (Intoxicated Assault, Intoxicated Manslaughter or a subsequent DWI offense), after release from confinement, to only operate vehicles that are equipped with ignition interlock devices.

Utah* §41-6a-518.2 §41-6-44(15) An offender is required, as a condition of probation, only to operate motor vehicles that are equipped with ignition interlock devices. (effective for convictions on or after July 1, 2009.) If the defendant had a BAC of .16 or higher, the court shall order the following (or describe on record why the order or orders are not appropriate): Treatment and one or both of the following: ignition interlock system as a condition of probation, and home confinement through the use of electronic monitoring.

Vermont Sec. 4. 23 V.S.A. § 1205 First offender may be eligible for ignition interlock license after 30 days of a 90 day suspension. For second offense, the offender may be eligible for an ignition interlock restricted license after 90 day of the 180 day sentence. Ignition interlock restricted driver's licenses will become available to offenders on July 1, 2011.

Virginia §§18.2-270.1, 18.2-270.2, 46.2-360 and 46.2-391 For a first offense, the court may require and, for a second offense, the court must require a DWI offender who has been granted either restricted driving privileges or full driving privileges on condition to operate only motor vehicles that are equipped with ignition interlock devices. This usage must last at least 6 months. The court must require ignition interlock for an offense where an offender's blood alcohol content equals or exceeds 0.15 percent, as a condition of a restricted license or as a condition of license restoration.

Washington §§46.20.740 The court shall order any person convicted of an alcohol-related violation or an equivalent local ordinance to apply for an ignition interlock driver's license from the department and to have a functioning ignition interlock device installed on all motor vehicles operated by the person. The court may waive the requirement that a person obtain an ignition interlock driver's license and operate only vehicles equipped with a functioning ignition interlock device if the court makes a specific finding in writing that the devices are not reasonably available in the local area, that the person does not operate a vehicle, or the person is not eligible to receive an ignition interlock driver's license. For a person who has not previously been restricted, the device shall be installed for a period of one year; for a second restriction, a period of five years; for a third or subsequent restriction, a period of ten years.

West Virginia 17C-5A-3a The driver licensing agency may reduce the mandatory and regular revocation periods of certain implied consent, admin per se and DWI law offenders if they agree to operate motor vehicles equipped with ignition interlock devices. First admin per se violation/DWI offense: The ignition interlock must be used for 5 months. First refusal: The ignition interlock must be used for 9 months. Second admin per se violation or DWI offense: The ignition interlock must be used for 18 months. Subsequent admin per se violation or DWI offense and second or subsequent refusal: The ignition interlock must be used for 2 years.

Wisconsin §§343.301(1) and (2) and 343.305(10m) For a second or subsequent offense (within 5 years), a person’s vehicles must be immobilized or equipped with an ignition interlock device for not less than 1 year nor more than the maximum period of license revocation. Ignition interlock usage starts 1 year after the revocation period. The DOT must limit the occupational license of a person who has 2 or more prior violations to operating only vehicles equipped with an ignition interlock device, regardless of whether a court has ordered every vehicle that is titled or registered in the offender's name to be equipped with such a device. Interlocks mandatory for a minimum of one year if the person has a BAC of .15.

Wyoming §31-5-233 §31-6-102 For a first conviction where the conviction is based on the person having an alcohol concentration of 0.15% or more, operate only vehicles equipped with an ignition interlock device for a period of six (6) months from the date of conviction; For a second conviction, operate only vehicles equipped with an ignition interlock device, for a period of one (1) year from the date of conviction; For a third conviction, operate only vehicles equipped with an ignition interlock device, , for a period of two (2) years from the date of conviction; For a fourth or subsequent conviction, operate only vehicles equipped with an ignition interlock device, for the remainder of the offender's life, except five (5) years from the date of conviction and every five (5) years thereafter, the offender may apply to the court for removal of the ignition interlock device required by this paragraph. The court may, for good cause shown, remove the ignition interlock device requirement if the offender has not been subsequently convicted of driving a motor vehicle in violation of this section or other law prohibiting driving while under the influence. If a person fails to submit to all required chemical tests requested by the peace officer shall result in the suspension of his Wyoming driver's license or his privilege to operate a motor vehicle for a period of six (6) months for a first offense or eighteen (18) months for a second or subsequent offense and he may be required to drive only vehicles equipped with an ignition interlock device.

* Requires ignition interlock installation for all DUI offenses, including first time offenses.

Source: National Conference of State Legislatures