The Environmental Protection Agency is eyeing nationwide reductions in air pollution from heavy-duty trucks in an effort it says will be a “holistic rethinking” of emissions standards and compliance for the trucking sector.

EPA Administrator Andrew Wheeler announced Monday the agency is seeking input on reducing emissions of nitrogen oxides, or NOx, from heavy-duty trucks. The plan, which the agency has dubbed the Cleaner Trucks Initiative, is one area in which the EPA is seeking to impose new regulations, as opposed to tearing them back.