Nevada Ignition Interlock Requirements (2026): Costs & Approved Providers
Nevada has required an ignition interlock for every DUI conviction since October 1, 2018 — with no BAC threshold and no first-offender exemption. A first conviction carries 185 days on the device; the clock starts when DMV issues your interlock privilege, not at arrest. Violations in the final 4 months can extend your term by up to half. Here’s what to expect.
Ready to install? Get a free quote from a Nevada DMV-authorized provider.
Call for a free quote
Nevada DUI interlock requirements at a glance
| All-offender? | Yes — every DUI conviction under NRS 484C.110 carries a mandatory IID order; Nevada went all-offender effective October 1, 2018 |
| BAC 0.18+ tier? | No longer — the old 0.18% “per se” definition (NRS 484C.040) was repealed in 2025; all first convictions are treated the same |
| 1st offense IID term | 185 days (NRS 484C.460(1)(a)); clock starts when DMV issues the interlock privilege — not at arrest or conviction |
| 2nd offense (within 7 years) | 1 year (NRS 484C.460(1)(b)) |
| 3rd+ / Felony DUI (within 7 years or DUI causing death / substantial bodily harm) | 3 years (NRS 484C.460(1)(c)) |
| License restriction | “Y” restriction added to driver’s license while on the IID program (NRS 483.490) |
| Violation extension — final 4 months | Court may extend by up to one-half the original term for: a 0.04%+ startup attempt, failed/missed rolling retest (0.025%+), skipped calibration, or tampering (NRS 484C.470) |
| Who administers removal | DMV authorizes removal; the “Y” restriction is lifted after completing 36 consecutive months of SR-22 |
| No indigent program | No state-funded IID cost-assistance program found in NRS 484C or DMV materials |
| DMV fees | $120 reinstatement + $35 victim impact fee; no separate state IID program fee identified |
| SR-22 required? | Yes — 36 consecutive months from reinstatement; any lapse restarts the clock |
| Who approves devices | Court orders under NRS 484C.460; DMV administers. Verify current provider list at dmv.nv.gov |
| Governing law | NRS 484C.110; 484C.460; 484C.470; 483.490 |
| Offense term | DUI (Driving Under the Influence) |
How Nevada’s IID program works
After a DUI conviction, the court orders an IID under NRS 484C.460. DMV then issues an ignition interlock driving privilege — your license gets a “Y” restriction meaning you may only operate vehicles equipped with an approved IID. The 185-day (first offense) clock starts when DMV issues the privilege, not at arrest or conviction date, so there can be a gap between conviction and when the clock begins.
Nevada repealed the .18% BAC “per se” definition in 2025 — there is no longer a separate high-BAC tier with a different IID term. All first DUI convictions under NRS 484C.110 carry the same 185-day IID requirement regardless of BAC.
Violations in the final 4 months can extend your term by up to 50%. Under NRS 484C.470, if you commit a violation in the 4 consecutive months before your term ends, the court may extend the IID period by up to one-half of the original term. For a first offense, that means up to 92 additional days. For a felony 3-year term, up to 18 additional months. Qualifying violations include a startup attempt at 0.04%+ BAC, a failed or missed rolling retest (0.025%+), a skipped calibration appointment, or tampering. Keep an especially clean record in the final 4 months of your term.
Nevada-authorized providers
Verify current authorization with Nevada DMV before signing. The provider list below is based on an October 2018 Nevada OTS (Office of Traffic Safety) list that has not been re-verified against a current Nevada DMV document. Provider authorization may have changed since 2018. Before signing with any provider, confirm their current authorization at dmv.nv.gov or by contacting Nevada DMV directly.
| Provider | Monthly est. | Coverage | |
|---|---|---|---|
| Intoxalock | $60–100 | Statewide | 888-283-5899 |
| Smart Start | $70–100 | Statewide | 800-831-3299 |
| LifeSafer | $65–95 | Statewide | 800-634-3077 |
| Guardian Interlock | $65–95 | Statewide | 800-499-0994 |
| RoadGuard (Dräger) | $65–95 | Statewide | 833-545-0368 |
| ALCOLOCK | $60–90 | Statewide | 866-700-9300 |
Verify current authorization before signing. This list is based on a 2018 OTS document — confirm current authorization at dmv.nv.gov before signing with any provider. Monthly estimates are market ranges; no state indigent assistance is available.
What an interlock costs in Nevada
| Installation (one time) | $70–150 |
| Monthly lease + monitoring | $60–100 |
| Removal | $50–75 |
| DMV reinstatement fee | $120 |
| Victim impact fee | $35 |
Over a 185-day first-offense term, expect roughly $600–900 in device and DMV fees. No state cost-assistance is available. Estimate your exact cost →
How to get installed — 5 steps
- After your DUI conviction, the court orders an IID under NRS 484C.460. DMV issues an ignition interlock driving privilege with a “Y” restriction on your license.
- Verify the provider’s current authorization at dmv.nv.gov, then contact them and schedule installation. The 185-day clock starts when DMV issues your privilege — not at conviction.
- Bring your vehicle and DMV privilege paperwork. Installation takes 60–90 minutes.
- Keep every calibration appointment and maintain a clean record, especially in the final 4 months — violations there can extend your term by up to 50%.
- At term end: DMV authorizes removal and lifts the “Y” restriction. Removal also correlates to completing 36 consecutive months of SR-22 on the Nevada DMV’s DUI page. Contact DMV to confirm your exact removal eligibility date.
All-offender in Nevada since 2018. Verify provider authorization and book installation now.
Book installation
Nevada requires SR-22 for 36 consecutive months — and any lapse restarts the clock. See Nevada SR-22 costs and cheapest carriers →
Nevada DUI interlock FAQ
Does every DUI in Nevada require an interlock?
Yes — Nevada has required an IID for every DUI conviction under NRS 484C.110 since October 1, 2018. There is no BAC threshold exemption and no first-offender bypass. The old 0.18% per se definition (NRS 484C.040) was repealed in 2025 — there is no longer a separate high-BAC IID tier. All first DUI convictions carry the same 185-day IID requirement.
When does my 185-day term start in Nevada?
The 185-day clock starts when DMV issues your ignition interlock driving privilege under NRS 484C.460(6) — not at your arrest date or conviction date. There may be a gap of days or weeks between your conviction and when DMV processes and issues the privilege. Confirm the exact start date with Nevada DMV after your conviction.
What happens if I get a violation in the final 4 months in Nevada?
Under NRS 484C.470, the court may extend your IID term by up to one-half the original period for a violation in the 4 consecutive months before the term ends. For a 185-day first offense, that’s up to 92 additional days. Qualifying violations include a startup attempt at 0.04%+ BAC, a failed or missed rolling retest at 0.025%+, a skipped calibration, or tampering.
Is there financial assistance for IID costs in Nevada?
No state-funded IID cost-assistance program was found in NRS 484C or Nevada DMV materials. NRS 484C.480 covers regulatory authority, not cost relief. Some providers may offer private hardship discounts — ask when you call — but these are not state programs.
Does Nevada still have a higher BAC tier for the interlock?
No — the old 0.18% “per se” BAC definition (NRS 484C.040) was repealed in 2025. There is no longer a separate enhanced IID requirement for high-BAC first offenders. All first DUI convictions under NRS 484C.110 are now treated the same for IID purposes: 185 days.
Sources:
Nevada DMV — DUI Suspensions;
NRS 484C.110; 484C.460; 484C.470; 483.490.
Last verified August 2026.
Advertising disclosure: We may be compensated when you contact a provider through our numbers or links. This doesn’t affect our rankings or information. Verify current DMV authorization before installation. Content is informational only — not legal advice.