A recent proposal to tighten nitrogen oxide (NOx) emissions aims to improve air quality. As a side effect, the changes will undoubtedly impact businesses. Can businesses expect to see shipping prices increase as fleet overhead rises? NOx is a type of air pollution formed during the combustion process in motor vehicles. The particulates have an adverse reaction on the environment and human health. By 2025, the Environmental Protection Agency (EPA) calculates that more than 33 percent of NOx emissions will spew from heavy-duty trucks. To decrease those projected emissions, the EPA is drafting a new set of NOx emission regulations. The EPA recently initiated the Cleaner Trucks Initiative. The legislation updates federal NOx regulations, which have not been revised since 2001. Additionally, the proposal creates a single federal rule for an incongruent batch of federal and state guidelines. Several air agencies have petitioned the EPA for clearer guidelines and tighter standards for the trucking industry. The new plan will help to streamline compliance standards while promoting transport efficiency. The resulting changes will result in less particular matter and cleaner air. “The Cleaner Trucks Initiative will help modernize heavy-duty truck engines, improving their efficiency, and providing cleaner air for all Americans,” said Acting Administrator Andrew Wheeler said during a press conference. The initiative builds upon the success of previous legislation. Between 2007 and 2017, NOx emissions declined by 40 percent. The new challenge is to continue NOx emission decline without hindering economic growth.  John Mies, manager of corporate communications for Volvo Group North, has been a vocal supporter of the proposal. Past legislation has been “challenging but practical” he said. He added, “This is a great opportunity to update and streamline the certification and compliance processes, ensuring a focus on real-world emissions control with minimal impediment...