Division of Motor Vehicles Commissioner George Tatum has resigned amid allegations he sought special treatment for a friend to get a vintage title for a replica truck.
A Department of Transportation spokesman confirmed Tatum's departure but gave no further details, calling it a personnel matter.
A DOT spokesman says Transportation Secretary Lyndo Tippett is also unavailable.
DMV records show that Tatum's administrative assistant sent an e-mail to staff indicating that Tatum's friend, Robert Kinlaw of Fayetteville, needed help getting a title for a 1937 Ford truck.
Tatum denies helping Kinlaw get the vintage title, which saves the owner hundreds of dollars in taxes and makes the car more valuable.
Kinlaw was denied an antique title after his truck was inspected in Nash County, but he later received a title after taking the truck to a Fayetteville inspector.
The SBI is already looking into the case at Tippett's request.