(Salem, OR) -- The Oregon Environmental Quality Commission is approving two new rules that will reduce vehicle pollution. The new "Clean Trucks Rule" requires manufacturers of medium and heavy-duty vehicles, like large pickups, buses, and tractor-trailer rigs to sell a certain percentage of zero emissions electric vehicles starting in 2025. California has a similar rule. Another rule tightens emission standards from large trucks and also takes effect in 2025. Transportation accounts for approximately 40-percent of statewide greenhouse gas emissions.