Expunging a DWI
There is no expungement of a DWI / DUI conviction in New Jersey.
Expungement is limited to criminal offenses, and, since DWI / DUI in New Jersey is a traffic offense and not a criminal offense, a conviction for DWI / DUI can never be expunged from a driving record.
The only way to remove a DWI / DUI conviction from a driving record is to attempt to reopen the conviction through a process called Post Conviction Relief.