What Counts as a First DUI in Las Vegas Under Nevada Law
Nevada charges DUI under NRS 484C.110 when you drive or are in actual physical control of a vehicle while impaired by alcohol or drugs, or with a blood alcohol concentration of 0.08% or higher within two hours of driving. Whether the case is treated as a “first” offense depends on a 7-year lookback: under NRS 484C.400, a prior DUI counts against you if it happened within seven years of the new offense. A DUI from eight years ago does not count toward second and subsequent DUI offenses in criminal court, though prosecutors will still know about it, and it can influence negotiations.
Two details in the lookback trip people up. First, out-of-state DUI convictions count as priors. Second, since Nevada’s SB 309 took effect in October 2025, being currently enrolled in a DUI treatment program from an earlier case also counts as a prior — a trap for anyone re-arrested mid-program.
Note the phrase “actual physical control.” Nevada does not require the State to prove you were driving — sleeping it off in a parked car with the keys within reach has supported DUI charges. Where the vehicle was, whether the engine was running, and where the keys were are all facts a defense lawyer can work with, because “control” is far more arguable than “driving.”