EPA proposes cost-saving amendments to 2027 truck emissions rule
A truck and other vehicles travel along Interstate 80 in Berkeley, California. (Justin Sullivan/Getty Images) July 9, 2026 4:20 pm, EDT key takeaways: The EPA proposed rolling back emissions-system warranty requirements for new heavy-duty trucks, which would reduce expected cost increases for new equipment next year. The proposal sets tighter NOx limits for January while