At the Fauquier Livestock Exchange in Marshall, Virginia, U.S. Environmental Protection Agency (EPA) Administrator Andrew Wheeler followed up on his November 2018 announcement and took concrete steps to advance the Cleaner Trucks Initiative (CTI) Jan. 6. Joined by U.S. Representative Denver Riggleman of Virginia and a variety of stakeholders, the CTI rulemaking will establish new, more stringent emission standards for oxides of nitrogen (NOx) and other pollutants for highway heavy-duty engines. Through this Advance Notice of Proposed Rulemaking (ANPR), EPA is seeking input from the public and interested stakeholders.
“The trucking industry touches nearly every part of our economy. A strong and resilient trucking industry is imperative to maintaining a strong and resilient economy. Through this initiative, we will modernize heavy-duty truck engines, improving their efficiency and reducing their emissions, which will lead to a healthier environment,” Wheeler says. “The U.S. has made major reductions in NOx emissions, but through this initiative, we will continue to reduce emissions while spurring innovative new technologies, ensuring heavy-duty trucks are clean and remain a competitive method of transportation.”
"I was honored to have EPA Administrator Wheeler join us in the 5th district [of Virginia] for this important announcement. The Cleaner Trucks Initiative is part of the EPA’s efforts to simplify complex regulations and protect our environment," Riggleman says.
“The trucking industry takes clean air seriously and has made significant strides in improving the nation’s air quality over the last 35 years. Since 1985, newly manufactured trucks have reduced NOx emissions by over 98 percent, but our work is not yet done. These reductions have been possible because the EPA has worked with stakeholders—including the trucking industry—to help institute standards that are feasible, achievable and reasonable,” American Trucking Association Executive Vice President of Advocacy Bill Sullivan says. “ATA is committed to continuing to work closely with EPA on developing the next generation of low-NOx emitting trucks through the Cleaner Trucks Initiative. To this end, the trucking industry seeks one national, harmonized NOx emissions standard that will result in positive environmental progress while not compromising truck performance and delivery of the nation’s goods.”
In addition to Wheeler and Riggleman, representatives from the Truck and Engine Manufacturers Association, American Trucking Association, Diesel Technology Forum, and the Owner-Operator Independent Driver Association were in attendance.
This rulemaking will also offer opportunities to streamline and improve certification procedures to reduce costs for engine manufacturers. This action follows on the petitions from over 20 organizations, including state and local air agencies, to revise and promulgate more stringent NOx standards.
From 2007 to 2017, U.S. NOx emissions dropped by more than 40 percent, but there is more work to be done, according to the EPA. Today, over 100 million people live in areas of nonattainment for ozone and particulate matter (PM), and according to EPA estimates, heavy-duty vehicles will continue to be one of the largest contributors to NOx emissions—a precursor of ozone and PM formation—from the transportation sector in 2025. Updating these standards will result in significant mobile source NOx reductions, which will aid communities across the country in achieving ozone and particulate matter attainment with EPA’s National Ambient Air Quality Standards program.
EPA last revised NOx standards for on-highway heavy-duty trucks and engines in January 2001. Pursuant to the Clean Air Act, the CTI will provide manufacturers sufficient time to comply with new standards and ensure that updated standards consider feasible emissions control technologies.
EPA intends to publish a proposed rule in early 2020.
For more information on the Cleaner Trucks Initiative, visit the EPA’s website.