How long will a DUI conviction be reportable on a DMV driving record?

A DUI conviction can be used a a “prior” DUI for 10 years from the date of the offense for determining minimum punishment in any future DUI case. This means that if you picked up a second DUI within 10 years of the first, it would be considered a second conviction. If it was more than 10 years, it would be treated as a first offense.