IID lets first offenders drive immediately in lieu of the 185-day suspension; mandatory on all vehicles for repeat offenders (1 year 2nd, 3 years felony) and for 0.18+.
By offense
First offense: IID not required at this level — IID lets a first offender drive immediately; mandatory if BAC 0.18+ (min 12–36 months) and on all repeats.
Second offense: IID required
Third offense: IID required
Statute: NRS 484C.460
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