Universal interlock state: every alcohol-DUI conviction requires a certified IID (12 months standard/Extreme first offense, 18 Super Extreme, 24 repeat); interlock compliance can shorten Extreme-tier jail dramatically.
By offense
First offense: IID required — AZ requires interlock for EVERY alcohol DUI conviction — 12 months standard/Extreme, 18 months Super Extreme.
Second offense: IID required — 24 months interlock on second offense.
Third offense: IID required
Statute: A.R.S. §§ 28-3319, 28-1382(I)
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