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Traffic Safety Administration, in the interest of information exchange. The opinions, findings and conclusions expressed in this publication are those of the author(s) and not necessarily those of the Department of Transportation or the National Highway Traffic Safety Administration. The United States Government assumes no liability for its content or use(More)
The alcohol ignition interlock is an in-vehicle DWI control device that prevents a car from starting until the operator provides a breath alcohol concentration (BAC) test below a set level, usually .02% (20 mg/dl) to .04% (40 mg/dl). The first interlock program was begun as a pilot test in California 18 years ago; today all but a few US states, and Canadian(More)
The aim of this report has been to use information contained in the alcohol ignition interlock recorder to determine whether systematic analysis of it can be used to predict which DUI offenders will recidivate during the first 2 years after the interlock is removed. The interlock record was accumulated during a 4-year intervention study in Alberta, Canada.(More)
This commentary reviews current and past vehicle interlock programs for impaired driving offenders with a focus on the challenges that courts and motor vehicle departments face in attempting to implement mandatory programs as required by current federal legislation. There are few offenders in interlock programs compared to the large number of impaired(More)
Approximately 30,000 alcohol ignition interlocks, which prevent a drinking driver from operating a vehicle, are in use in the United States and Canada. Currently available studies indicate that interlocks reduce impaired driving recidivism while on the vehicle. However, in the United States, the practical effectiveness of these devices is limited because(More)
The mission of the Traffic Injury Research Foundation (TIRF) is to reduce traffic related deaths and injuries. TIRF is a national, independent, charitable road safety institute. Since its inception in 1964, TIRF has become internationally recognized for its accomplishments in a wide range of subject areas related to identifying the causes of road crashes(More)
OBJECTIVE Vehicle interlocks have been shown to effectively reduce the recidivism of multiple driving-while-impaired (DWI) offenders; however, the evidence for their effectiveness with first offenders has been mixed. Two Canadian studies found that the installation of an interlock reduced first DWI recidivism, but U.S. studies in West Virginia and(More)
AIMS This study was designed to determine the efficacy of alcohol safety interlocks in reducing recidivism among first and second driving-under-the-influence (DUI) offenders. It also evaluates the overall effectiveness of interlock programs where typically only a small portion of DUI offenders elect to install interlocks. DESIGN The driving records of DUI(More)
AIMS To evaluate patterns of blood alcohol concentration (BAC) and driving logged on the ignition interlock recorder and to assess whether this event record is a useful outcome measure for a behavioral intervention. DESIGN Descriptive analyses of recorder data and multivariate analysis of the predictors of high BACs associated with a motivational(More)
A sample of mothers who had used crack cocaine while pregnant was evaluated during the postpartum period before random assignment to drug treatment. Mean infant age was 74 days. Paired hair samples were acquired from 63 mothers and 63 infants. Maternal urine was screened for cocaine and benzoylecgonine; three different drug use self-report measures were(More)