It is the DMV action against your driving privilege that runs separately from the criminal case, on its own timeline and its own conditions. It can be in effect while the court case is still open, and it does not end when the case closes.
More detail
Drivers routinely assume there is one process with one outcome. There are two. The county court decides the criminal matter. The Department of Motor Vehicles decides whether you hold a driving privilege, and it states its conditions in a notice it sends directly. The most common failure mode is a driver who completes everything the court asked, believes they are done, and is stopped months later still revoked because a DMV condition, often the proof of financial responsibility, was never satisfied. The second most common is the opposite and much happier: a driver who handles the DMV side promptly and is driving legally on an interlock permit while the court case grinds on. Which of those you get is mostly a function of reading the DMV notice early.