The Department of Motor Vehicles blames a mainframe upgrade for a slowdown with its main computer system in local offices statewide and online.
The New York DMV says the upgrade was performed Sunday by the Office of Information Technology Services and is affecting DMV office and web transactions.
The system was fully tested when the upgrade was completed, but the problems started popping up Monday morning during high transaction volumes that were not detected during testing.
ITS is currently working to identify and resolve the problem. There is no estimate for when the system will be fully operational.
The problem with license and registration transactions involves all 35 offices run by the DMV in major cities and the offices operated by county clerks upstate.
Spokesman Pete Bucci says "very few transactions are getting through." The agency will make allowances for anyone who misses a deadline.
(Information from the Associated Press was used in this report.)