Ignition Interlock Laws in Nevada: Key Requirements and Penalties

Ignition interlock laws are designed to prevent and deter individuals from driving under the influence of alcohol. These laws require the installation of an ignition interlock device (IID) in the vehicles of individuals convicted of driving under the influence (DUI). The IID requires the driver to pass a breathalyzer test before the vehicle can be started. Nevada, like many other states, has implemented these laws to improve roadway safety and reduce the number of alcohol-related crashes.

In Nevada, the ignition interlock laws require drivers convicted of a DUI to install the IID in their vehicles for specific periods of time, depending on the severity and recurrence of their offenses. This type of legislation is aimed at not only punishing offenders but also providing an opportunity for them to correct their behavior. Studies have shown that ignition interlock devices can have a significant impact on reducing DUI arrest rates, indicating that these laws are an effective strategy for combating impaired driving.

While the benefits of ignition interlock laws are evident, it is essential for Nevada residents to understand the specifics of their state’s legislation. As these laws continue to evolve, it is crucial to stay informed and comply with any changes to ensure the safety of all road users.

Definition and Purpose of Ignition Interlock Devices

Ignition interlock devices (IID) are designed to help reduce alcohol-impaired driving by preventing the engine from starting if the driver is determined to be under the influence. These devices are usually installed in the vehicles of individuals convicted of driving under the influence (DUI) as a measure to prevent further alcohol-related incidents.

How They Work

An IID is a small device, similar to a breathalyzer, that is connected to the vehicle’s ignition system. Before starting the car, the driver must blow into the device. If the IID detects a blood alcohol concentration (BAC) above the allowed limit, the engine will not start. Some IIDs also require rolling retests, which means the driver must provide periodic breath samples while the vehicle is in operation to ensure continued sobriety.

Goals and Objectives

The primary goal of ignition interlock devices is to reduce instances of drunk driving and promote road safety. By preventing individuals with a history of DUI offenses from operating a vehicle while intoxicated, these devices can significantly decrease the likelihood of alcohol-related accidents.

Specific objectives of IIDs include:

  • Reducing repeat DUI offenses by enforcing sobriety while driving
  • Encouraging behavioral changes in individuals with a history of alcohol-impaired driving
  • Decreasing alcohol-related motor vehicle accidents and fatalities

In Nevada, ignition interlock laws have been established to ensure the mandatory use of these devices for individuals convicted of DUI offenses. This contributes to a safer driving environment for everyone on the road.

Nevada Ignition Interlock Laws

Requirements for Installation

In Nevada, ignition interlock devices (IID) are required for certain individuals convicted of driving under the influence (DUI). According to the CDC fact sheet, these requirements typically apply to individuals under 21 who are found to have any measurable amount of alcohol in their system while driving. Repeat offenders are also subjected to these requirements.

Mandatory ignition interlock installation is generally ordered by the court following a DUI conviction. Furthermore, in some cases, IIDs may be required during the pretrial period and those who refuse to submit to a chemical test for blood alcohol concentration may also be required to install an ignition interlock device.

Duration of Use

The duration of ignition interlock device usage in Nevada varies depending on the severity of the offense and the number of prior convictions. According to a 50 state survey and analysis, the duration for IID usage may be as follows:

  • First-time offenders: The judge may order a minimum of three to six months of IID usage.
  • Second-time offenders: A mandatory minimum of one-year IID usage may be required.
  • Third-time offenders: The court may impose a mandatory minimum of three years of IID usage.

It’s important to note that the court can extend the duration of IID usage if the individual fails to comply with the program’s terms or is caught driving without a functioning IID installed.

While ignition interlock laws in Nevada aim to improve road safety by preventing intoxicated individuals from driving, it is essential to stay informed about the specific requirements and consequences of a DUI conviction in the state.

Procedures for Obtaining an Ignition Interlock Device

Before we begin, it’s important to note that Nevada is one of the states that have implemented ignition interlock laws to prevent drunk driving. To help drivers comply with the laws, Nevada has laid out specific procedures for obtaining an ignition interlock device.

Approved Providers

In Nevada, it is essential to obtain an ignition interlock device from an approved provider. The state holds the providers to strict standards to ensure the device’s accuracy and reliability. Make sure the provider you select is part of the list of authorized IID providers in Nevada to avoid any legal issues that may arise.

Installation and Calibration

Once you have chosen an approved provider, the next step is to schedule an appointment for the device’s installation. This process may vary depending on the provider you choose, but here are some general steps to follow:

  1. Schedule an appointment: Call or visit an approved provider to set up an installation appointment. Be sure to have your driver’s license number and court order (if applicable) handy during this call.

  2. Attend the appointment: Bring your vehicle and any necessary paperwork to the appointment. The technician will install the IID in your car, which usually takes around 60-90 minutes.

  3. Training session: During the installation, the technician will also provide you with a brief training session on how to use the device properly. Make sure to ask any questions you may have related to the device’s operation.

  4. Calibration: The service provider will calibrate the device according to Nevada’s requirements. To maintain its accuracy, regular calibration is necessary – usually every 30, 60, or 90 days, depending on program requirements.

  5. Documentation: After completing the installation and calibration, the provider will give you documentation as proof. You may need to submit this to the DMV, court, or probation officer, depending on your case’s circumstances.

Remember that it is crucial to maintain your IID throughout the required period and follow all related laws and regulations. Any non-compliance may result in penalties or an extension of the ignition interlock requirement.

Monitoring and Reporting

Routine Maintenance

Ignition interlock devices (IID) in Nevada require routine maintenance to ensure proper functioning. In order to monitor and report device use effectively, drivers are required to take their vehicles to an authorized service center on a set schedule, usually every 60 to 90 days. During these visits, the service center will inspect the IID, download its log data, and send the data to the state authorities for review. This ongoing monitoring helps authorities ensure that drivers with IIDs are abiding by the state’s laws and not attempting to circumvent the device.


Violations of ignition interlock laws in Nevada can occur in various forms. Some examples include failing or skipping a breath test, attempting to tamper with or remove the IID, or having someone else provide a breath sample on behalf of the driver. The device will log and report any such violations along with the date, time, and driver’s breath alcohol concentration (BAC) for each attempt.

Additionally, the device records and reports any attempts to circumvent the IID by disconnecting or tampering with the system. These violations are taken seriously and can lead to further legal consequences for the driver.


If a driver in Nevada is found to have violated the ignition interlock laws, they may face several consequences, depending on the severity of the violation. Some possible outcomes include extending the time required to use the IID, additional fines, suspension or revocation of driving privileges, or even criminal charges in case of severe or repeated violations.

Overall, the monitoring and reporting protocol for ignition interlock devices in Nevada serves as a crucial tool in the ongoing efforts to reduce drunk driving incidents and ensure the public’s safety on the roads.

Costs and Financial Assistance

Expenses for the Device

Ignition Interlock Devices (IIDs) expenses include installation, maintenance, and monthly service fees. The daily cost of an ignition interlock device averages to a reasonable amount that helps to ensure the safety of the driver and other road users. However, the costs may vary depending on the service provider and state regulations, with different providers offering diverse payment plans that might include discounts for long-term leases or prepaid usage (source).

Financial Aid Programs

Some states, like Nevada, offer financial assistance programs for those who cannot afford the expenses associated with IIDs. These programs provide the required funds to cover the installation and maintenance costs for eligible applicants. To apply for financial aid, an application form must be filled out, which is then used by authorities to determine one’s eligibility based on criteria such as income, assets, expenses, and monthly costs (source).

In addition to financial assistance programs, other strategies can be employed to cover the costs of IIDs. By raising overall costs or implementing additional fees, states can generate funds needed to finance the financial aid programs for qualified individuals (source).

Frequently Asked Questions

How long is an interlock device required in Nevada?

An ignition interlock device (IID) is typically required for first-time DUI offenders in Nevada for a period of 185 days. For repeat offenders, the required period may increase depending on the severity of their offense and their driving record.

What are the consequences for not using an IID in Nevada?

Not installing or using an IID when required in Nevada can result in serious consequences, including an extension of the IID requirement period, fines, and possible jail time. It is crucial to comply with the court-ordered IID requirements to avoid such penalties.

What is the BAC limit for the Intoxalock device?

Intoxalock is a brand of ignition interlock devices. In Nevada, the legal Blood Alcohol Content (BAC) limit for drivers with an IID is 0.02%. If an Intoxalock device detects a BAC level higher than this threshold, it will prevent the vehicle from starting.

How much does an ignition interlock device cost?

The cost of an ignition interlock device generally depends on the provider and any associated fees. Typically, installation costs range from $70 to $150, with a monthly monitoring fee ranging between $60 and $90. Users can expect additional costs for maintenance and device removal.

Can an IID detect drug impairment?

Ignition interlock devices primarily detect alcohol consumption by analyzing a user’s breath sample for the presence of alcohol. While IIDs are not designed to detect drug impairment directly, drivers found to be under the influence of drugs while operating a vehicle with an IID may face additional penalties.

What are the general requirements for interlock devices in Nevada?

In Nevada, ignition interlock devices must meet specific performance standards set by the state. Some of these requirements include providing accurate and reliable BAC readings, having tamper-resistant features, and offering a secure data recording system. Additionally, IIDs must be installed and maintained by a state-approved service provider.

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