Parking regulations have not been enforced in Londonderry because of the bad weather.
Other snow-hit areas of Northern Ireland have also been affected.
It is not known precisely where or for how long operations have been suspended.
The company in charge of traffic wardens said it temporarily suspends enforcements in areas it judges too hazardous to patrol.
A spokesperson said they would take a "common sense approach" in snowy areas, but urged drivers to continue to observe parking regulations at all times.