What the California DUI Lookback Means
California law raises DUI penalties when a person has recent priors. The California DUI lookback is the 10 year window that decides which priors count. Each repeat offense statute uses the same basic idea.
Understanding the window helps a person read a charge and an offer. It also shows why exact dates matter.
How the Window Is Measured
Vehicle Code section 23540 applies when the new offense occurred within 10 years of a separate violation that resulted in a conviction. So the statute looks at when the new offense happened. It also requires that the earlier violation ended in a conviction.
The third and fourth offense statutes use the same structure. Therefore, the same counting method carries through each level.
Which Priors Fit the California DUI Lookback
The listed priors include DUI under section 23152 and DUI causing injury under section 23153. They also include a qualifying reckless driving conviction under section 23103. That last item is why a wet reckless plea can matter years later.
Out of state convictions can count too. Vehicle Code section 23626 treats a conviction from another state, territory or Canada as a California conviction if the conduct would violate section 23152 or 23153 here.
California DUI Lookback and the DMV Record
The DMV keeps its own record. The California Driver Handbook says DUI convictions stay on the driving record for 10 years. As a result, the DMV record and the court lookback often line up.
Still, records can contain errors. So compare court dockets with the DMV printout before relying on either.
Common Date Questions
People often ask whether the window runs from arrest or conviction. The statute language focuses on when the new offense occurred and on earlier violations that ended in convictions. A lawyer can apply that wording to the actual dates.
Pending cases raise other questions. The article on multiple pending DUI cases explains how they interact.
Related Topics
The guide on California second DUI cases shows what changes with one prior. Also, the article on out of state prior rules covers records from other states.
Keep copies of every old plea form and sentence order. Those papers make date questions faster to answer.
Small date differences can change a case. For example, an offense one week outside the window may fall under a lower penalty statute. So confirm each date from official records rather than memory.
The guide on California third DUI cases shows how two priors change the penalties.