HARRISBURG, Pa. (WKBN)- Due to the severe winter weather set to hit the Valley this afternoon, PennDOT has enforced restrictions on I-80 and has reduced the speed limit.

PennDOT is urging motorists to avoid unnecessary travel but those who must head out will see speeds reduced to 45 mph on I-80 from the I-79 interchange in Mercer County to Exit 161 (Route 220, Bellefonte) in Centre County.

Starting at 3 p.m., Tier 1 restrictions will be in place for Interstate 80 from I-79 to I-99, according to a press release.

Under Tier 1 restrictions, the following vehicles are not permitted:

  • Tractors without trailers;
  • Tractors towing unloaded or lightly loaded enclosed trailers, open trailers or tank trailers;
  • Tractors towing unloaded or lightly loaded tandem trailers;
  • Enclosed cargo delivery trucks that meet the definition of a CMV;
  • Passenger vehicles (cars, SUV’s, pickup trucks, etc.) towing trailers;
  • Recreational vehicles/motorhomes;
  • School buses, commercial buses and motor coaches not carrying chains or Alternate Traction Devices (ATD’s); and
  • Motorcycles.

Commercial vehicles not affected by vehicle restriction must move to the right lane.