Alcohol and Other Drug-Impaired Driving
With alcohol-impaired driving accounting for a significant portion of traffic fatalities, impaired driving remains a major traffic safety and public health issue for states.
According to NHTSA, 13,524 people were killed in alcohol-impaired traffic crashes in 2022. Alcohol-impaired driving fatalities made up 32% of all traffic fatalities. Nearly all vehicle types experienced a rise in the number of alcohol-impaired drivers; however, SUVs saw the highest increase—7%—from 2021 to 2022.
NHTSA's data show that in 2021, an average of one alcohol-impaired-driving fatality occurred every 39 minutes. The annual cost of alcohol-impaired crashes accounted for $69 billion or 20% of all economic costs such as medical expenses or property damage in 2019, according to NHTSA. About 82% of these crashes cases were caused by alcohol, resulting in $57 billion in costs.
Additionally, NHTSA's analysis of state percentages of alcohol-impaired driving fatalities among total traffic fatalities ranged from a low of 22% in Utah to a high of 43% in Rhode Island and South Carolina in 2022, compared to the national average of 32%.
Driving under the influence of drugs other than alcohol and polysubstance—impaired driving-driving after using a mix of drugs or a combination of drugs and alcohol—may also contribute to the increasing number of impaired driving crashes. The 2021 National Survey on Drug Use and Health (NSDUH) reveals that 11.7 million people aged 16 or older drove under the influence of illicit drugs, including marijuana, in the past year, compared to 13.5 million who drove under the influence of alcohol. While drug use does not necessarily indicate impairment, NSDUH notes that drug effects on driving skills can vary. For example, marijuana can slow reaction time and impair judgment of time and distance, while certain prescription medicines can cause drowsiness and impair cognitive functioning.
NHTSA collected data from trauma centers and medical examiners to examine the prevalence of alcohol and other drugs in the blood of seriously or fatally injured drivers and other crash victims. Samples collected between September 2019 and July 2021 informed two studies: one focused on changes in alcohol and drug prevalence during the COVID-19 public health emergency and a larger study that included additional trauma centers. The study conducted during the COVID-19 public health emergency revealed that while drug prevalence was high among seriously and fatally injured roadway users, it increased significantly during the pandemic. Alcohol prevalence rose from 21.3% to 26.9%, cannabis from 21.4% to 31.2%, and opioids from 7.6% to 12.9%. Overall, 51% of road users tested positive for at least one drug before the pandemic, which increased to 63.6% during COVID-19. Additionally, the presence of multiple drugs increased from 18.1% pre-COVID to 23.8% during the pandemic.
In the larger study, 55.8% of seriously injured or killed roadway users tested positive for at least one drug (including alcohol) and 19.9% tested positive for two or more categories of drugs. The study also found that 25.1% of road users tested positive for cannabis followed by 23.1% for alcohol, 10.8% for stimulants and 9.3% for opioids. Of the pedestrians in the study, 24.7% were positive for alcohol and 21.7% for cannabinoids, compared to drivers with 21.6% alcohol and 25% cannabinoid positive.
To better understand the crash risk associated with different drug categories and their prevalence among drivers, the National Transportation Safety Board (NTSB) examined toxicological data from five driver populations, including drivers arrested for impaired driving and fatally injured drivers, gathered by four laboratories. Each laboratory collected the data during different periods, ranging from 2015 to 2021. Their analysis revealed that 71% to 99% of drivers tested positive for one or more potentially impairing drugs. Additionally, approximately 50% of drivers tested positive for multiple drug categories.
The NTSB also found that alcohol was the most detected drug category followed by cannabis. However, cannabis was often detected in combination with alcohol or other drugs rather than alone. For example, analysis of one of the larger sample sizes from the Orange County California Crime Laboratory shows that 89% of drivers tested positive for alcohol and/or cannabis and 11% tested positive for other substances. Of those who tested positive for cannabis and/or alcohol, 56% tested positive for alcohol only, while 21% tested positive for alcohol and cannabis; 12% of drivers tested positive for just cannabis. The remaining 11% tested positive for substances other than alcohol or cannabis. While alcohol remains the primary drug for endangering traffic safety, the use of cannabis and other potentially impairing drugs also may also be contributing to the problem of impaired driving crashes.
NTSB provides several recommendations such as requiring cannabis products to have a warning label about impaired driving and enhancing state drug-impaired driving laws. Researchers also recommend the widespread adoption of standardized drug testing and reporting to improve our understanding of drug impairment trends and use, impaired driving countermeasures and treatment options for offenders.
To gain insight into public opinions and behaviors regarding traffic safety, AAA publishes an annual Traffic Safety Culture Index which surveys drivers on their perception of traffic safety issues. The 2022 index reveals that 94% of drivers perceive driving after drinking as very dangerous or extremely dangerous. Among surveyed participants, 7% admitted to driving after consuming alcohol in the previous 30 days. Additionally, nearly half of respondents favor reducing the legal BAC limit from.08% to.05%, and 68% support lowering it for those transporting young children.
AAA's index reveals a notable gap in perceptions between alcohol and marijuana use while driving, with only 70% considering driving shortly after using marijuana as very or extremely dangerous. The index also found that 75% of survey participants support making it illegal to drive with a certain amount of marijuana in a person's system. Most (85%) respondents perceive driving after consuming potentially impairing prescription drugs as very or extremely dangerous. Moreover, 72% of those surveyed support outlawing driving with any drug in one's system that hasn't been legally prescribed.
The federal government, states and traffic safety organizations are continually examining and implementing interventions and new technologies to combat alcohol-impaired driving.
NHTSA developed a Drug-Impaired Driving Criminal Justice Evaluation Tool for state, local and territorial and tribal governments to self-assess readiness to implement certain programs or policies aimed to reduce impaired driving. The tool can identify gaps in drug-impaired driving programs, inform strategies to strengthen such programs and track development progress over time.
The Utah legislature became the first and only state to lower its impaired driving per se BAC limit, in 2018, from the national standard of.08% to.05%. NHTSA's evaluation of Utah's law reveals Utah's fatal crash rate (the number of crashes resulting in someone's death) dropped by 19.8% and the fatality rate (the number of people killed in crashes) decreased by 18.3% between 2016, the last full year before the BAC limit was lowered, and 2019. Comparatively, the rest of the United States showed a 5.6 % fatal crash rate reduction and 5.9% fatality rate reduction. Utah's neighboring states—Arizona, Colorado and Nevada—did not see similar improvement in fatal crash and fatality rates.
Despite a more stringent BAC standard, NHTSA reports that alcohol-impaired driving arrests did not increase markedly after the law went into effect, as some had feared. Additionally, NHTSA's analysis reveals that in 2019 more than 22% of alcohol consumers in Utah indicated they had changed their behaviors, such as ensuring a sober ride was available, once the law went into effect.
At least six states—Connecticut, Hawaii, New York, North Carolina, Oregon and Washington—considered legislation to lower the BAC limit from.08% to.05% in 2023.
State Legislation
Lawmakers in 49 states considered over 450 bills related to alcohol and drug-impaired driving in 2023. Approximately 78 bills were enacted by 33 states. Laws addressed include ignition interlock devices and restricted driving privileges, drugged driving, penalties, sealing and expungement of records and implied consent and testing, among other topics.
Ignition Interlock Devices and Restricted Driving Privileges
Ignition Interlock Devices (IIDs) are connected to the starter or other on-board computer system in motor vehicles to prevent them from being operated if the driver's breath contains a certain level of alcohol. To ensure that the driver is not consuming alcohol while the car is in motion, most IIDs require random retesting. Courts often require IIDs for drivers convicted of a DUI. As part of the sentencing process, individuals whose driver's licenses have been suspended or revoked may be granted limited driving privileges if they have an IID installed in the vehicle(s) they use.
NHTSA data shows that IIDs reduce recidivism among first-time and repeat offenders, including high-risk offenders. However, once IIDs were removed from a repeat or high-risk offender's vehicle, the offender's recidivism rates increased. Offenders with higher rates of failed BAC tests were also found to have higher rates of recidivism once their IID was removed.
Additionally, a CDC study of a Florida policy mandating alcohol treatment for DUI offenders using interlocks did find decreased recidivism. Offenders who accumulated three interlock violations—defined as two occasions within four hours in which the device prevented the driver from starting the vehicle—were required to participate in alcohol use disorder treatment. Recidivism among such offenders was reduced by 32% after the device was removed, compared to the control group that did not receive treatment.
To combat attempts to drive drunk or circumvent or tamper with an IID, several states have enacted compliance-based removal (CBR) laws that require offenders to install an IID for a certain period without violations before removal is possible. A study published by the Governors Highway Safety Association examined CBR laws by analyzing DUI- and IID-related data from two states with such laws—Tennessee and Washington—and two states without—Arkansas and Iowa. The findings revealed lower rates of alcohol-impaired driving recidivism in Tennessee (1.7%) and Washington (3.7%) compared to Arkansas (5.6%) and Iowa (6%) between Jan. 1, 2016, and Dec. 31, 2019.
Since 2011, all 50 states have passed legislation that allows or requires the use of IIDs for certain drunk driving offenses—from drivers who refuse to submit an impaired driving chemical test to first-time, repeat and/or high BAC offenders. Thirty-one states and the District of Columbia have laws requiring all offenders, including first-time offenders, to install an IID.
Laws in some states provide for restricted driver's licenses for DUI offenders in addition to or alternative to an IID, or as a substitute to having the license suspended. People with a restricted license are limited on where and when they can drive, but do not have to install an IID.
At least nine states—Louisiana, Michigan, New Hampshire, New Jersey, Oregon, South Carolina, Tennessee, Texas and Utah—enacted legislation regarding IIDs and restricted, suspended or revoked driving privileges in 2023. Louisiana and Tennessee's legislation includes provisions that address IID program costs.
Louisiana (SB 82) required the Department of Public Safety and Corrections, specifically the office of state police, to establish an Ignition Interlock Affordability Plan to address economic hardship for individuals required to install an IID. Individuals who demonstrate economic hardship, as determined by eligibility for programs like the Supplemental Nutrition Assistance Program or Medicaid, will only have to pay up to 50% of the fees associated with the installation, monthly calibrations, lease and removal of the device. Certain individuals also qualify if they provide a judge's order that they demonstrate an income below 125% of the federal poverty level. While individuals who meet the economic hardship standard are eligible for reduced fees, they are still responsible for any other fees related to interlock noncompliance or costs associated with damaged equipment. An IID service center is not allowed to refuse service to individuals who have demonstrated eligibility for the affordability plan.
The bill also amends IID usage compliance provisions by providing that no credit will be given towards suspension time or any driver's license reinstatement requirement if any of the eight compliance violations are violated during the IID period. These violations include tampering with the device, failing to take or pass an initial breath test with a BAC of.02 or more, or unauthorized removal of the device. Under the previous law, no credit would be given if an interlock user committed a combination or repeat of two of the eight violations within a one-month period. If the IID manufacturer reports a violation of these new provisions to the Department of Public Safety and Corrections, the interlock period will be extended by an additional month for a first offense and additional six months for a second offense, along with an extended driver's license restriction period.
Additionally, the new law provides that DUI offenders with a suspended license can apply for a restricted driver's license immediately after installing an IID. Previously, these offenders had to wait 12 months and provide proof they had installed an IID before being eligible for a restricted license.
Louisiana (HB 484) amended its DUI law to provide that first time DUI offenders with a BAC of.15 or more face a two-year license suspension. Similarly, a second offense with a BAC of.15 or more will result in a four-year license suspension. Previously, these suspensions and conditions applied to individuals with a BAC of.20 or higher. Additionally, upon a second conviction, an offender may also be eligible for a restricted license if they install an IID. Certain first-time offenders were already eligible for a restricted license upon demonstrating that their vehicle is equipped with an interlock device.
The bill also removes the restriction on eligibility of a hardship license for these high BAC offenders, which allows individuals to drive for certain purposes like work or medical appointments.
New Hampshire (SB 81) amended its ignition interlock law to clarify that the device will only allow a vehicle to start if the driver provides a breath sample with an alcohol concentration below.020.
New Jersey (AB 4800/SB 3011) extended the existing all-offender IID requirements until Jan. 1, 2029. Notably, the bill eliminated certain fines for DUI offenses if an offender voluntarily installs an IID in their car before being convicted. The bill maintains the previously established DUI fines for certain offenders who do not install an IID, which range from $250 to $400 for a first offense with a BAC between.08% and less than 10%, and $300 to $500 for a BAC of.10% or higher. Second DUI offenses carry fines of $500 to $1,000, while third and subsequent offenses carry a $1,000 fine.
The offender must obtain a driver's license from the Motor Vehicle Commission, which must include a notation indicating the IID requirement. They must also provide a copy of the court order that specifies the installation date and related charges. This provision only applies to individuals who have a valid New Jersey driver's license in good standing at the time of the offense, and who maintain such standing until the date of conviction. Additionally, the bill states that individuals who enter a plea agreement for operating or allowing another person to operate a motor vehicle under the influence of a narcotic, hallucinogenic or habit producing drug will have to forfeit their right to operate a vehicle for at least six months.
Oregon (SB 568) eliminated the requirement for a court hearing on every motion to remove an IID installed in a person's vehicle during their participation in a driving while under the influence of intoxicants (DUII) diversion program unless the district attorney or city prosecutor contests, requests a hearing and files a written objection. Previously, individuals could request IID removal after six months of compliance with the diversion agreement and recommended treatment. However, the law mandated a hearing for every removal request, regardless of program adherence. According to Oregon Legislative Staff, this led to several motions lacking essential documents to verify program adherence. The new law aims to streamline the process and ensure that only necessary hearings are conducted.
South Carolina (SB 36) amended its IID law to require DUI offenders to install an IID upon their first conviction. Previously, IIDs were only required for repeat and high BAC (.15 or higher) offenders. The bill also allows individuals under 21 years old to install an IID in lieu of serving the remainder of their driver's license suspension or denial. Additionally, individuals whose driver's licenses were revoked prior to Oct. 1, 2014, excluding those convicted of a felony driving under the influence, can petition the circuit court in their county for reinstatement of their driver's license if they' have met certain conditions. These conditions include having an improved overall driving record completing an alcohol or drug assessment and treatment program.
The bill also provides that habitual DUI offenders are prohibited from obtaining a driver's license for five years, but this period can be reduced to two years if they enroll in the IID program. After this period, the individual can apply to have their license reinstated if they meet specific criteria, including not having another habitual offender suspension in another state or any other impaired driving violations during the suspension period.
Finally, individuals can request a hearing to apply for a temporary alcohol license, which allows them to drive until conviction, within 30 days of receiving notice of their driver's license suspension If the suspension is upheld, the person must enroll in the IID program.
Tennessee (HB 77/SB 258) required IIDs installed on or after Jan. 1, 2024, to include global positioning system technology that will geotag a vehicle's location whenever an initial startup test, random retest or a skipped test occurs, or if any attempts to circumvent the device are detected. The law already requires the IID to have photo-capturing capability to identify individuals providing breath samples.
Tennessee (SB 855) allocated funding from the electronic monitoring indigency fund which includes the IID account, to pay eligible costs for a functioning IID. The bill requires the fund to be comprised of $40 ignition interlock fees for driving and boating under the influence violations. The allocation includes $30.50 for eligibility costs and expenses incurred for administering the fund, $4.50 for grants to critical access hospitals, $1.25 for the alcohol and drug addiction treatment fund, $1.25 for the highway safety office for local government grants for impaired driving enforcement, $1.25 for expenses related to alcohol and drug offenses and $1.25 for grants to halfway houses assisting drug and alcohol offenders.
Half of any surplus in the fund must be transferred to the department of mental health and substance abuse services and placed in the alcohol and drug addiction treatment fund and the other half must be used by the highway safety office for grants to local law enforcement to maintain equipment or personnel needed to enforce alcohol-related traffic offenses.
Additionally, if a court finds someone to be indigent, the person must pay at least $30 per month towards the eligible costs of a functioning interlock device or an alternative device. The fund will cover the rest of the monthly eligible costs, but the remaining costs cannot exceed $170 per month. If a person ordered to install a device claims they cannot afford it, the court must hold a comprehensive hearing to determine the person's indigency. The IID provider can end services if the defendant fails to pay their monthly fee, or if the court has issued a warrant for the defendant's arrest and they have been arrested and the court has issued an order allowing the provider to terminate services.
Texas (HB 291) allowed an individual whose license has been suspended due to a DUI or refusal to submit to impairment testing to apply for an occupational driver's license (ODL), which grants them the ability to drive to and from work. To obtain an ODL, eligible individuals must file a petition in the jurisdiction in which they reside or where the incident that led to the license suspension or revocation occurred. However, a judge may deny an ODL if the individual has been convicted of more than one DUI within a 10-year period, if they are unable to provide proof of auto insurance or if they are currently subject to a previous ODL revocation. ODL holders are not permitted to operate commercial vehicles.
Petitioners seeking an ODL due to a DUI-related license revocation or suspension must attend counseling and rehabilitation services for alcohol dependence. The court can waive this treatment requirement if good cause is shown. If an individual fails to attend the required program, the court may modify the terms of their ODL occupational driver's license to include the use of an IID.
Additionally, the bill grants judges the authority to limit individuals to operating only vehicles equipped with an IID if they are already under a court order restricting them to such vehicles, including orders imposed as a condition of bond. This requirement also extends to individuals who have had their license suspended, revoked or canceled due to specific impaired driving convictions. The court can waive the IID requirement if it determines it is unnecessary for community safety.
Utah (HB 62) amended its IID law to allow certain individuals who have been convicted of impaired driving to install the device. If an individual installs the device, the Driver License Division cannot suspend their license unless the person fails to complete the prescribed period of interlock use. Failure to successfully complete the full period results in a 120-day license suspension from the date the interlock was removed, with no reduction for days of previous compliance with the interlock restriction.
Additionally, an interlock user is required to have their device monitored by the manufacturer or dealer every 60 days to ensure proper functionality of the interlock and to gather data on any attempts to start the vehicle with a blood alcohol concentration level that exceeds the permissible limit. An interlock user can request to remove the device if they can provide documentation from a physician citing a medical condition that prevents them from providing the required lung sample.
The new law also provides that if a person's driving privilege is revoked, they may petition the Driver License Division to become an ignition interlock restricted driver. To be eligible they must serve at least 90 days of the license revocation period, provide a valid driving privilege like employment, install and maintain an IID for three years, pay license reinstatement fees, pay appropriate original license fees and complete the license application process. If approved, they must install and maintain the interlock for three years. Individuals who remove the device and do not replace it within 24 hours face an 18-month driver's license revocation.
24/7 Sobriety and Drug Monitoring Programs and Treatment Programs
DUI recidivism is a significant concern for lawmakers and enforcement officials. To address this issue, states have debated and enacted legislation requiring offenders to participate in sobriety monitoring programs and treatment programs. Judges have always had the option to use court-mandated treatment, which requires impaired driving offenders to participate in evaluation and treatment for their substance abuse issues. However, recent interest includes combining behavioral treatment with more punitive sanctions.
Sobriety programs involving 24/7 monitoring emphasize sobriety and require certain DUI offenders to submit to a breath or urine test multiple times (usually twice) daily at a designated site. Many programs also allow the use of breathalyzers, transdermal alcohol monitoring devices (ankle bracelets) and drug monitoring patches to monitor an offender's sobriety when certain factors such as distance from or lack of access to a testing site make primary testing methods unreasonable. If the offender fails or does not appear for a test, he or she will receive swift, certain and moderate sanctions, which can include bond revocation, parole or probation, and incarceration for 24 or 48 hours, in most cases. These 24/7 sobriety monitoring programs do not require participants to enter treatment.
The RAND Corporation published a paper in 2020 analyzing South Dakota's 24/7 sobriety monitoring program's causal effect on the probability of rearrest or probation revocation for repeat DUI offenders—offenders who have been charged with a second or third DUI violation. South Dakota was the first state to establish a statewide 24/7 sobriety monitoring program in 2007. The authors concluded that the probability of rearrest or probation revocation was 49% lower for program participants than for non-participants 12 months after their DUI arrest. The authors also found a "substantive decrease at 24 and 36 months."
The NHTSA published a study assessing North Dakota's 24/7 sobriety program, initially piloted in select counties in 2008 before statewide expansion in 2010. In 2013, the state passed legislation (HB 1302) mandating participation for repeat DUI offenders, contributing to a notable surge in program enrollment and duration, particularly among second-time offenders (from 58 days pre-law to 246 days post-law). The study also highlighted a 23% increase in the likelihood of second offenders avoiding recidivism within two years post-2013 legislation compared to before.
Currently, at least 14 states—Alaska, Florida, Hawaii, Idaho, Iowa, Montana, Nebraska, Nevada, North Dakota, South Dakota, Utah, Washington, Wisconsin and Wyoming—have 24/7 sobriety monitoring programs or pilot programs at the state or county level.
Utah expanded its 24/7 sobriety and drug monitoring program to include additional offenders and Michigan and Montana enacted legislation that addresses treatment program requirements. The new legislation from each state also links treatment and monitoring requirements to driving privileges.
Utah (HB 62) allowed the Driver License Division to shorten a person's license revocation period if they participate in a 24/7 sobriety monitoring program. However, individuals who do not complete or fail the program face another 18-month revocation without eligibility for an interlock. In the case of second or subsequent failures in the 24/7 program, an individual's license will be revoked for three years. The Division cannot count any days of previous suspensions or revocations related to the same conviction toward the new revocation period.
Utah (SB 80) also allowed the Driver License Division to shorten the driver's license revocation period for individuals participating in a problem solving or drug court program who have also installed an IID.
Michigan (SB 134) expanded the previous DWI/Sobriety Court Interlock Program into the Specialty Court Program. "Specialty court" includes drug treatment, DWI/sobriety, mental health and veterans treatment courts. The expanded program allows eligible participants in a broader range of certified specialty courts to install an IID in their vehicle and obtain a restricted driver's license. However, mental health courts not certified by the Supreme Court Administrative Office are prohibited from certifying eligibility for a restricted license under the interlock program. Additionally, all DWI/sobriety courts that participate in the interlock program must comply with the "Ten Guiding Principles of DWI Courts," published by the National Center for DWI Courts. Michigan (SB 135) also aligned the Michigan Vehicle Code with SB 134's definition of "specialty court," meaning both must be enacted for either to take effect.
Montana (HB 92) provided that if certain DUI offenders have not completed chemical dependency treatment before their driver's license suspension or revocation period ends, the Department of Justice may restore or renew their driving privileges if they have completed a chemical dependency assessment that concludes treatment is not required.
Drugged Driving
Eight states—California, Colorado, Delaware, Maryland, Minnesota, Montana, New York and Oregon—enacted legislation regarding drug-impaired driving in 2023.
California (AB 103) allocated $2 million for the Center for Medicinal Cannabis Research in San Diego to establish a study on the impact of commercial cannabis products on driving capabilities. If the study's parameters are reviewed and accepted by the University of California, the school will collaborate with the Cailfornia Highway Patrol and the Center to evaluate the public safety consequences of driving after cannabis use and explore effective methods for detecting related impairment. Researchers may use driving simulations and conduct blood, oral fluid and breath analysis, cognitive tests and standardized field sobriety tests. The Center is required to submit the study results to the Department of Cannabis Control, the Legislature and the governor by Jan. 1, 2027.
Colorado (HB 1102) expanded the scope of high-visibility enforcement (HVE) for drunk driving to include drug-impaired driving. Additionally, the state Transportation Commission must allocate $1.5 million annually from the state highway fund to the Office of Transportation Safety in the Colorado Department of Transportation (CDOT). This funding will be distributed to local governments engaged in HVE. Previously, CDOT received $2 million from the First Time Drunk Driver (FTDD) Account of the Highway Users Tax Fund for HVE. However, in recent years funds in the FTDD have not been available to CDOT as available funding has gone to other prioritized uses.
CDOT must establish rules for qualified HVE and publish an annual report on HVE enforcement episodes and any subsequent investigations. CDOT must also create rules for law enforcement agencies conducting HVE. These rules should address factors such as requiring agencies to submit policies and procedures to address profiling and prohibiting citation quotas.
Additionally, the bill requires law enforcement agencies to complete in-service training before conducting impaired driving HVE. Additionally, agencies under a judicial decree, for issues like misconduct, may not receive funding for HVE. Agencies that do not comply with the bill's requirements are subject to funding suspensions and the attorney general may bring a civil action.
Delaware (HB 2) enacted the Marijuana Control Act to legalize and regulate adult-use cannabis. The act provides that to prioritize public health and safety, it is still prohibited to drive under the influence of or be impaired by marijuana.
Maryland (HB 556/SB 516) enacted its cannabis regulation law, which mandates that all labels and packages of cannabis distributed to consumers must include various disclaimers. One of these disclaimers is that the consumption of cannabis may impair an individual's ability to operate a motor vehicle.
Minnesota (HF 100) legalized adult-cannabis and as a part of legalization, required the commissioner of public safety to develop and implement a pilot project. This project, which will run from Sept. 1, 2023, to Aug. 31, 2024, aims to study oral fluid roadside testing devices. These devices are designed to detect controlled or intoxicating substances in individuals suspected of impaired driving. Oral fluid samples must be collected by a certified drug recognition evaluator and obtained only with voluntary consent. Test results cannot be used as a basis for arrest decisions or legal proceedings but to be analyzed solely to evaluate the practicality and effectiveness of the instrument. The commissioner must consult with relevant stakeholders such as law enforcement officials and prosecutors when implementing and evaluating the pilot.
The commissioner must submit a comprehensive report on the project's results to the chairs and ranking minority members of the legislative committees with jurisdiction over public safety by Feb. 1, 2025. The report must include information on factors like the accuracy of the instruments as tested against laboratory results, how often individuals had controlled or intoxicating substances in their systems and the types and the number of participants in the project. The report must also evaluate the practicality and reliability of the instruments and provide recommendations for the project's permanent continuation.
Additionally, the bill requires the office to conduct a study on impaired driving, focusing on crashes involving drivers who have used cannabis or tetrahydrocannabinol, arrests made for driving under the influence of cannabis as indicated by positive cannabis or THC tests and convictions for driving under the influence of cannabis or related products. A preliminary report on these factors must be submitted to the legislature by Jan. 15, 2024, and the final report by Jan. 15, 2025.
Lastly, the bill adds cannabis flower, cannabis products, a lower-potency hemp edible, a hemp-derived consumer product, artificially derived cannabinoids and THC as substances prohibited under its impaired driving provisions.
Montana (SB 13) clarified its implied consent law to allow law enforcement officers to administer an oral fluid or blood test to individuals suspected of operating a vehicle under the influence of drugs and other substances. As of March 2024, the state does not conduct oral fluid testing in practice.
Montana (HB 437) closed a loophole in its DUI law to provide that any type of THC, not just the previously established Delta-9 THC, can be present to constitute driving under the influence. Representative Zolnikov, the bill sponsor, stated that "Delta-9-THC is not all encompassing, so you could have the situation arise where someone is driving under influence of marijuana but they're not using a Delta-9 strain, they're using Delta-10 or 11. By striking Delta-9, and just having THC in the law, we can ensure that we are protecting people on the roads no matter what kind of marijuana they have been using. "
New York (SB 2712) mandated that a portion of the revenue collected from surcharges for alcohol and other drug-related offenses to be paid to counties monthly starting April 1, 2024, for efforts to reduce drug-impaired driving events.
Oregon (HB 2316) expanded the definition of "intoxicant" to include any drug, either by itself or in combination with intoxicating liquor, inhalants, psilocybin, cannabis or a controlled substance, that affects a person's mental and/or physical faculties. Previously, the law only considered intoxication by drugs listed as controlled substances under ORS 475.005. The bill removed the requirement to explicitly state in the accusatory document that the person was under the influence of a controlled substance or inhalant. This change allows for a wider consideration of drug-related impairment in driving under the influence of intoxicant (DUII) convictions, without the need for specific mention in the legal charging document.
Rhode Island (HB 5768) required the Community College of Rhode Island to incorporate curriculum from the American Automobile Association or an equivalent provider into driver's education, specifically focusing on the hazards of marijuana-impaired driving. The state board of education must approve the curriculum before it's implemented.
Penalties
Nine states—Kentucky, Maine, Maryland, Nevada, Oregon, South Dakota, Tennessee, Texas and West Virginia—created or revised penalties for DUI or driving under the influence of drug offenses.
At least 19 states considered or enacted legislation in 2023 requiring impaired drivers convicted of vehicular homicide to pay child support for victims' surviving children. Tennessee became the first state to enact such legislation in 2022, followed by Kentucky, Maine and Texas in 2023.
Maine (HP 967) and Texas (HB 393/SB 703) required offenders convicted of vehicular homicide due to impaired driving, involving the death of a parent or guardian, to pay child support until the child reaches 18 years of age or graduates from high school, whichever occurs later. Louisiana (HB 91) introduced similar legislation, but Gov. John Bel Edwards vetoed the law.
Kentucky (SB 268) expanded the restitution requirement to include not only children whose parents or guardians were killed in an impaired driving-related crash but also parents who were severely injured and disabled due to such a crash. Kentucky's law, also known as "Melanie's Law," is named after a parent who became permanently disabled after being involved in a crash with an intoxicated driver.
The amount of restitution for each state is based on factors such as the child's standard of living, financial needs and required resources for the child. However, in Maine, any unpaid amount accumulated while the defendant was in prison must be paid upon their release. In Texas, if a defendant is incarcerated, restitution payments must begin within one year of their release, and any outstanding amount must be addressed through a payment plan. Restitution payments can be deducted from any civil judgment against the defendant.
Kentucky (HB 262) enacted "Lily's Law" named in honor of a 16-year-old who tragically lost her life in 2021 after an impaired driver struck the vehicle she was traveling in. The bill amends the state's homicide related provisions by adding that an individual is guilty of vehicular homicide if they cause the death of another person or the death results from the individual driving under the influence of alcohol, a controlled substance or any other substance that impairs driving ability. Vehicular homicide is a Class B felony. Additionally, the bill extended the maximum detention period for potential DUI offenders upon arrest from four to six hours.
Maryland (HB 483/SB 74) established that if an individual is convicted of impaired driving, that conviction will be considered when determining penalties for offenses of operating a vessel, which includes any type of watercraft like a boat, while impaired by alcohol and/or drugs. Conversely, if someone has a prior conviction for operating a vessel while impaired, that previous conviction will be considered when deciding the penalties for repeat offenses of impaired driving. Additionally, individuals convicted of such impaired driving offenses are subject to increased subsequent penalties if they've previously been convicted of manslaughter involving a vehicle or vessel, which qualifies as gross negligence.
Nevada (AB 17) eliminated the mandate for DUI offenders to wear identifiable clothing during community service due to an impaired driving conviction.
Oregon (HB 2316) enacted legislation to provide that a person charged with driving under the influence of an intoxicant (DUII), which includes impairing substances like alcohol and cannabis, while riding a bicycle is subject to a minimum fine of $500. An individual riding a bicycle with a BAC of.15% or more is subject to a minimum fine of $1,000. Additionally, a person with a BAC of.15% within two hours after riding a bicycle is also subject to a $1,000 fine. Offenders are also required to complete 48 hours of community service and possibly attend a victim treatment session. Unlike motor vehicle DUII offenses, these do not result in driver's license suspension. The term "bicycle" excludes electric-assisted bicycles.
South Dakota (SB 115) enhanced penalties for habitual offenders by incorporating out-of-state DUI convictions within the state's 10-year lookback period for DUI offenses. If an individual has two DUI offenses within the previous 10 years, the lookback period extends to 25 years.
South Dakota (HB 1170) also established mandatory sentences for repeat DUI offenders. A fourth DUI conviction within a 10-year lookback period is considered a class 5 felony and carries a minimum two-year sentence. Similarly, five convictions within a 10-year period is classified as a Class 4 felony, resulting in a three-year sentence. If an individual is imprisoned again before completing their driver's license revocation period, the time spent in prison does not count towards the revocation period.
Individuals convicted of a sixth or subsequent DUI within a 25-year lookback period, with at least two occurring within the previous 10 years, face an aggravated offense classified as a Class 4 felony. In these cases, the court is required to impose a minimum six-year sentence for aggravated violations involving at least six convictions within a 15-year timeframe. Also, offenders at each of these levels may be eligible for parole, which depends on fulfilling requirements such as participation in an alcohol or drug accountability program or installation of an IID.
Tennessee (SB 328) reduced the incarceration period for a second DUI conviction from 25 to 17 days. The bill also mandates a 90-day minimum continuous sobriety period with a transdermal alcohol monitoring device as a condition of probation for third or subsequent DUI convictions involving alcohol or a combination or alcohol and other intoxicants. Individuals convicted of three or more offenses are required to pay all costs associated with alcohol monitoring devices regardless of whether they qualify as indigent.
Tennessee (HB 1198) enacted the "Silas Gable Flatt Law" named after an unborn child who tragically lost their life in a crash caused by a driver under the influence. This law makes it a crime for individuals to knowingly lend a vehicle to someone who is under the influence or has a suspended license due to alcohol or drug-related offenses. However, there are exceptions for those who hold a restricted driver's license granted by the court. Penalties for violating this law include at least 48 hours in jail for a first offense, 72 hours for a second offense and seven days for repeat offenders. In addition to these jail terms, offenders will also face a Class A misdemeanor charge.
West Virginia (HB 3302) amended its DUI law to include an unborn child, which includes an embryo or fetus, as a victim in cases of DUI causing death. The existing penalties for DUI-induced fatalities, which are considered a felony and carry a prison sentence ranging from three to 15 years, a fine between $1,000 and $3,000, and a 10-year driver's license suspension, now also apply to these new provisions.
Implied Consent and Testing
All driver's license applicants agree to comply with requests by law enforcement officers to take breath, urine or blood samples to determine impairment when they sign their driver's license application forms. Breath tests can be conducted at the roadside or any location, while urine and blood testing must be done at a medical or detention facility. These laws, known as implied consent laws, are based on the principle that driving is a privilege and not a right. Every state has some form of implied consent law, but the penalties for refusing to take a test vary. Minnesota amended its law related to impairment testing, and New Hampshire clarified provisions in its implied consent law in 2023.
Minnesota (HB 2980/SB 2909) allowed peace officers to administer breath tests to commercial vehicle drivers when there is reasonable suspicion of impairment in violation of federal regulations prohibiting the consumption of alcohol. The bill also permits the use of the breath test results as evidence in impaired driving cases involving commercial vehicle operators.
Additionally, the bill provides that individuals facing DWI charges are exempt from the electronic alcohol monitoring program during the trial period if they become a participant in the ignition interlock program. Judges, counties and probation officers are prohibited from recommending interlock providers unless the recommendation involves a specific program for indigent individuals.
New Hampshire (SB 182) closed a loophole in its DUI law by applying the administrative definition of "way" to DUI cases involving violations of the implied consent law. The definition of "way" includes the boundary lines of areas such as public highways, streets, alleys, and certain parking lots. A state police prosecutor testified that this definition was necessary to ensure consistency in enforcing impaired driving laws, as there had been inconsistent application of the law depending on where an individual was arrested. Previously, individuals could be charged with a DUI after being stopped in a parking lot, and if they refused to submit to a breathalyzer test, their license would not be suspended until a hearing was conducted.
Sealing and Expungement of Records
States have the authority to seal criminal cases, which means those records can only be accessed with a court order. Individuals can also completely remove certain offenses from their criminal record through a process called expungement. Three states—Arkansas, Idaho, and Tennessee—amended their expungement laws concerning DUI offenders.
Arkansas (HB 1352) prohibited individuals who have been convicted of a boating or driving while intoxicated (BWI or DWI) offense for the fourth or fifth time within a 10-year lookback period from filing a petition to seal the conviction until the period has passed. Under previous law, individuals could file such a petition after five years. Individuals convicted of a BWI or DUI for a fourth or fifth time within the lookback period commit an unclassified felony.
Idaho (HB 149) prohibited individuals arrested, prosecuted or convicted of an assaultive or violent misdemeanor, which includes DUI offenses where an individual possesses a BAC of.20 or higher, from petitioning the court to shield their records from disclosure.
Tennessee (HB 412/SB 362) required the expungement of public records for individuals charged with an implied consent violation, at no cost to the individual, if the violation is dismissed. Expungement does not apply to commercial driver's license (CDL) holders or CDL permit holders.
Miscellaneous
Arizona (SB 1085) required the time limitations for prosecutions for simple and extreme DUI offenses resulting in serious physical injury or death, as indicated in a crash report, to be initiated within two years after the offense occurred. A simple DUI offense is committed if an individual's BAC is.08 or higher within two hours of operating a vehicle, while an extreme DUI offense is committed if their alcohol concentration is between.15 and.20 or higher within two hours of driving a vehicle.
Illinois (SB 1212) required the Illinois Department of Transportation to maintain DUI memorial markers and fatal crash memorial markers for at least four years from the date the last person was memorialized on the marker. The markers must bear the message "Please Don't Drink and Drive" or "Don't Drive Under the Influence."
Virginia (HB 2204/SB 1398) required the Department of Motor Vehicles to annually collect and disseminate state and local level data related to driving under the influence of alcohol, drugs or a combination. The required data must encompass the number of motor and commercial vehicle crashes, injuries, serious injuries and fatalities that involved alcohol, drugs or both, the number of passengers, bicyclists and pedestrians killed in vehicle crashes, including the BAC and any drugs identified in the driver. Other data requirements include information on the number of installed IIDs in vehicles and DUI-related blood sample submissions, specifying the drugs detected in these samples.
The department must submit an annual report on the data collected by Oct. 1 to the General Assembly, the governor and the Virginia State Crime Commission. The report must be made available to the public on the department's website; the first report must be submitted by Oct. 1, 2024 and must include relevant impaired driving data from 2019 through 2023.
Virginia HB (2370/SB 841) also required one criminal defense attorney with experience representing individuals charged with driving while intoxicated and one local attorney to sit on the Commission on the Virginia Alcohol Safety Action Program.