04/22/2026
What you need to know about EPA 2027
The U.S. Environmental Protection Agency (EPA) has confirmed that new emissions regulations for heavy-duty trucks will take effect on January 1, 2027.
Here’s what you need to know.
What is EPA 2027?
EPA 2027 refers to a new regulation which sets criteria pollutant emission standards for light-, medium-, and heavy-duty vehicles with a goal of significantly reducing certain air pollutants such as nitrogen oxides (NOx). The rules also mandate a reduction in diesel particulate matter. This is separate from the EPA Phase 3 Greenhouse Gas regulation that was also expected to take effect in 2027.
For heavy-duty engines, NOx emissions must be reduced to 0.035 g/bhp-hr, a reduction of up to 90% over current levels.
Is this regulation subject to change in light of recent EPA announcements?
EPA has confirmed that it will maintain the 0.035 g/bhp-hr emissions level that was adopted in 2022; however, we expect the agency to introduce a new draft rule later this spring which will make changes to other areas of the regulation including warranty and useful life provisions.
Considering the EPA’s rescindment of the 2009 Greenhouse Gas Endangerment Finding and the Department of Justice’s recent enforcement discretion, will we still get an EPA’27 engine update?
Yes. EPA’s rescindment of the endangerment finding impacts only greenhouse gas emissions regulations and does not affect EPA’s 2027 regulations on traditional air pollutants, such as NOx, which affect health and air quality. All heavy truck engine OEMs will still need to offer an engine compliant with EPA’s 2027 emissions regulations.
What is Volvo’s solution?
Volvo Trucks’ EPA 2027-certified engine is built on the new Volvo powertrain platform, designed to deliver superior performance and fuel efficiency. More details about the new engine will be shared at ACT Expo in Las Vegas on May 4, 2026.
How can you prepare?
1. Be proactive
Review your 2026-2027 plan. Proactive preparations now help minimize operational disruptions and position your fleet for a smooth transition when you need additional equipment. Emissions compliance is determined at the time of truck build, so you can be confident that trucks produced in 2026 will be compliant in the future.
2. Plan for future cost changes and a compressed pre-buy window during 2026
Plan for potential increases in equipment costs for trucks delivered starting January 1, 2027, due to EPA’27 technology evolution. As a result, the industry could see a surge in demand as we move into the second half of 2026.
3. Stay informed
Stay tuned for the EPA’s upcoming Notice of Proposed Rulemaking (NPRM) which could bring changes to engine warranty and useful life provisions. The NPRM will be followed by a public comment period and then the final regulation text in late 2026.
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