Nevada DUI laws set the blood alcohol concentration limit at 0.08% for general drivers and 0.04% for commercial drivers. A first offense carries a fine of $400 to $1,000 and up to six months in jail. A second offense within seven years now carries a mandatory minimum of 20 days in jail under a 2025 law change, and a third offense is a category B felony. This guide covers penalties, license revocation, and 2025 to 2026 updates under Nevada Revised Statutes Chapter 484C.
Key Terms Defined
Nevada law recognizes two distinct paths to a DUI conviction. A per se DUI applies when a driver’s blood alcohol concentration measures at or above the legal limit, regardless of whether the driver appeared impaired. This means a driver can be convicted even without visible signs of intoxication if a chemical test shows a qualifying result.
An impairment DUI applies when alcohol, a controlled substance, or a combination of substances renders a person incapable of safely driving, even if a blood alcohol concentration number falls below 0.08%. Nevada Revised Statutes Section 484C.105 defines being under the influence as impairment to a degree that prevents safely driving or exercising actual physical control of a vehicle. Either path can result in a conviction.
Actual physical control is another term central to Nevada DUI law. A person does not need to be actively driving to face a DUI charge. Sitting in the driver’s seat with the keys accessible while impaired can qualify as actual physical control under Nevada Revised Statutes Section 484C.110, even if the vehicle never moved.
What the Law Says
Nevada Revised Statutes Section 484C.110 makes it unlawful for a person to drive or be in actual physical control of a vehicle while under the influence of intoxicating liquor, with a blood alcohol concentration of 0.08% or more, or while under the influence of a controlled or prohibited substance. The statute also covers combined influence of alcohol and drugs and use of any chemical, poison, or organic solvent that impairs safe driving.
The general blood alcohol concentration limit for adult drivers age 21 and older is 0.08%. Commercial drivers face a stricter blood alcohol concentration limit of 0.04% under Nevada Revised Statutes Section 484C.120, reflecting the higher safety standard applied to vehicles used to transport passengers or hazardous materials. Drivers under the age of 21 face a much lower threshold under Nevada’s zero tolerance framework for underage drinking and driving.
Nevada law also sets specific per se thresholds for controlled substances measured in nanograms per milliliter of blood or urine. These thresholds cover substances including amphetamine, cocaine, heroin, methamphetamine, and phencyclidine. A driver testing at or above these thresholds can be convicted of DUI even without a formal impairment assessment, similar to the alcohol per se standard.
Marijuana carries its own specific thresholds under Nevada Revised Statutes Section 484C.110. A blood concentration of 2 nanograms per milliliter of delta-9-tetrahydrocannabinol, or 5 nanograms per milliliter of the marijuana metabolite 11-OH-tetrahydrocannabinol, meets the per se standard for a DUI charge. Nevada’s legalization of recreational marijuana for adults 21 and older does not create a defense to these thresholds.
Who It Applies To
Nevada Revised Statutes Chapter 484C applies to any person operating or in actual physical control of a vehicle on a highway or on premises to which the public has access. This includes parking lots, private roads open to public traffic, and other locations beyond public highways. The law does not require the vehicle to be moving for a charge to apply.
Commercial drivers face additional obligations under Nevada Revised Statutes Section 484C.120, which defines a commercial motor vehicle based on weight rating, passenger capacity, or the transport of hazardous materials requiring placards under federal law. These drivers face a lower blood alcohol concentration threshold and can also be charged for driving with any detectable prohibited substance in their blood or urine.
Drivers under 21 face a stricter standard because Nevada applies a near zero tolerance policy for underage alcohol consumption combined with driving. A driver under 21 with a measurable blood alcohol concentration well below the standard adult limit can still face license consequences, reflecting the state’s approach to preventing underage drinking and driving.
Penalties or Consequences
A first DUI offense within seven years in Nevada is classified as a misdemeanor under Nevada Revised Statutes Section 484C.400. Penalties include a fine of $400 to $1,000 and a jail sentence of up to six months, though courts may allow community service in place of jail time in many first offense cases. The offense also triggers a license revocation period.
A second DUI offense within seven years is also a misdemeanor but carries substantially harsher penalties. Nevada Revised Statutes Section 484C.400, as amended by Senate Bill 309 effective October 1, 2025, raised the mandatory minimum jail or residential confinement term from 10 days to 20 days. Fines for a second offense range from $750 to $1,000, and the offense also requires attendance at a program addressing alcohol or substance use.
A third DUI offense within seven years is charged as a category B felony under Nevada Revised Statutes Section 484C.400. Conviction carries imprisonment in state prison for a minimum term of one year up to a maximum of six years, along with a fine of $2,000 to $5,000. A third offense also results in a longer license revocation period and mandatory ignition interlock device installation once driving privileges are restored.
DUI causing death or substantial bodily harm is treated separately from the standard offense tiers and carries significantly higher penalties. Assembly Bill 4, known as the Safe Streets and Neighborhoods Act, was signed by Governor Joe Lombardo on December 1, 2025 and took effect January 1, 2026. This law increased maximum sentencing exposure for DUI cases resulting in death and extended marijuana impairment standards to these felony level cases.
Nevada also imposes a mandatory evaluation requirement tied to blood alcohol concentration level. Senate Bill 309 lowered the threshold triggering a required alcohol or substance use disorder evaluation from 0.18% to 0.16%, meaning more drivers with elevated blood alcohol concentration readings now face a mandatory evaluation before sentencing under Nevada Revised Statutes Section 484C.350.
License Revocation and Ignition Interlock Requirements
A DUI arrest in Nevada triggers a license revocation process handled by the Department of Motor Vehicles that runs separately from the criminal court case. A first offense conviction under Nevada Revised Statutes Section 484C.210 results in a 185 day license revocation. This administrative action can proceed independently of the outcome of the criminal charges, meaning a revocation is not automatically undone if criminal charges are reduced or dismissed. Details on the process appear in the Nevada DMV DUI Quick Tips brochure.
Refusing a chemical breath, blood, or urine test carries its own consequences under Nevada’s implied consent law. Nevada Revised Statutes Section 484C.150 establishes that any person driving in Nevada has already given consent to a preliminary breath test when a police officer has reasonable grounds to believe the person was driving under the influence. Refusing an evidentiary test results in license revocation for at least one year, and a court order can compel a blood sample in certain circumstances.
Nevada allows most drivers to continue operating a vehicle during a revocation period through installation of an ignition interlock device at the driver’s own expense. This device tests a driver’s breath before the vehicle will start, and it prevents the engine from starting if it detects a blood alcohol concentration of 0.02% or more. Requirements and the reinstatement process appear on the Nevada DMV license reinstatement and ignition interlock requirements page.
License reinstatement after a revocation period is not automatic. A driver must generally complete requirements that can include an alcohol or substance use evaluation, a victim impact panel, payment of a reinstatement fee, and proof of financial responsibility through an SR-22 insurance certificate. These requirements apply in addition to any criminal penalties imposed by the court.
Exceptions and Limitations
Nevada law includes a narrow exception addressing situations where a person is found in a vehicle while impaired but was not actually driving. Under Nevada Revised Statutes Section 484C.109, a person is not considered to be in actual physical control of a vehicle if they are asleep inside it, not seated in the driver’s seat, the engine is not running, the vehicle is lawfully parked, and the facts show the person could not have driven to that location while impaired.
Nevada also recognizes a limited affirmative defense related to alcohol consumed after driving. If a person can show by a preponderance of the evidence that they consumed alcohol after they stopped driving and before a chemical test was administered, and that this later consumption caused the qualifying blood alcohol concentration reading, this can serve as a defense under Nevada Revised Statutes Section 484C.110. A defendant intending to raise this defense must provide written notice to the prosecuting attorney at least 14 days before trial.
Holding a valid prescription for a controlled substance does not automatically protect a driver from a DUI charge in Nevada. If a substance impairs a driver’s ability to safely operate a vehicle, or if it meets a per se threshold under Nevada Revised Statutes Section 484C.110, a lawful prescription does not serve as a defense to the charge itself.
Recent Changes to Nevada DUI Law
Senate Bill 309 took effect October 1, 2025 and made three significant changes to Nevada Revised Statutes Chapter 484C. It raised the mandatory minimum jail or residential confinement term for a second DUI offense from 10 days to 20 days. It lowered the blood alcohol concentration threshold requiring a mandatory substance use evaluation from 0.18% to 0.16%. It also closed a gap involving offenders already enrolled in a court ordered treatment program who commit a new offense.
Assembly Bill 4, the Safe Streets and Neighborhoods Act, was signed December 1, 2025 and took effect January 1, 2026, as confirmed in Governor Lombardo’s announcement on 2025 Special Session public safety legislation. This legislation increased maximum sentencing exposure for DUI cases causing death and extended marijuana impairment standards to felony level DUI cases involving death or substantial bodily harm. Additional provisions tied to work zones and pedestrian safety zones under this same legislative package take effect July 1, 2026.
These changes reflect an active legislative period for Nevada DUI law, and the state’s official statute record continues to note pending effective dates tied to these 2025 reforms. The complete current text of these provisions, including all recent amendments, is available through the Nevada Revised Statutes Chapter 484C as maintained by the Nevada Legislature. Laws and enforcement may change, and readers should check official state sources for the latest rules before relying on any specific figure.
Common Misconceptions
A common misconception is that a blood alcohol concentration below 0.08% guarantees no DUI charge will follow. Nevada’s impairment based DUI standard under Nevada Revised Statutes Section 484C.105 allows a charge when alcohol or drugs impair safe driving ability regardless of the exact blood alcohol concentration number, so a reading under the per se limit does not eliminate DUI exposure entirely.
Another misconception involves Nevada’s legal marijuana status. Legal recreational or medical marijuana use does not protect a driver from a DUI charge if blood levels meet or exceed the per se thresholds set in Nevada Revised Statutes Section 484C.110, or if the substance otherwise impairs safe driving ability. Lawful access to a substance and lawful operation of a vehicle while using it are treated as separate legal questions under Nevada law.
Many drivers also assume that winning the criminal case automatically restores driving privileges. Because license revocation under Nevada Revised Statutes Section 484C.210 is an administrative action handled by the Department of Motor Vehicles, it proceeds on its own timeline. A driver generally has seven days from receiving a temporary license to request a Department of Motor Vehicles hearing to contest the revocation separately from the criminal court process, as explained further in the Disclaimer below.
Disclaimer
This article is for general informational purposes only. It is not legal advice. Lawwalls publishes informational content only and does not provide legal services or legal advice.
For legal advice about your specific situation contact a licensed attorney in your state. Laws change and vary by jurisdiction. Verify current rules with official government sources or a qualified lawyer.