Updated: 12:27 PM EST Feb 18, 2021 In response to Thursday s winter weather, the Pennsylvania Department of Transportation has placed additional vehicle restrictions on interstates and limited access expressways in central Pennsylvania.Tier 2 of the commonwealth’s weather event vehicle restriction plan is now in place on:Interstate 81 from the Pennsylvania-Maryland State Line in Franklin County, through Cumberland, Dauphin, and Lebanon counties.Interstate 83 in York, Cumberland and Dauphin counties.Interstate 78 in Lebanon County.Under Tier 2 restrictions, all Tier 1 restrictions plus a prohibition on tractors towing loaded tandem trailers without chains on board are in place on affected roadways.Under Tier 2 restrictions, the following vehicles are not permitted on affected roadways:Tractors without trailers.Tractors towing unloaded or lightly loaded enclosed trailers, open trailers or tank trailers.Tractors towing loaded tandem trailers unless there are chains or anoth