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  2. Regulations for Emissions from Vehicles and Engines

Proposed Rule and Related Materials for Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards

Proposed Rule and Related Materials for Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards
Basic Information
Legal Authorities
  • 42 U.S.C. §7401 - 7671q
Federal Register Citations
  • 40 CFR Parts 2, 59, 60, 80, 86, 87, 600, 1030, 1031, 1033, 1036, 1037, 1039, 1042, 1043, 1045, 1048, 1051, 1054, 1060, 1065, 1066, 1068, and 1090
Docket Numbers
  • EPA-HQ-OAR-2019-0055

On this page:

  • Rule Summary
  • Rule History
  • Additional Resources

Rule Summary

Related Information
  • Regulations for Greenhouse Gas Emissions from Commercial Trucks & Buses
  • Regulations for Smog, Soot, and Other Air Pollution from Commercial Trucks & Buses

On March 28, 2022, EPA published a proposed rule that would set new, more stringent standards to reduce pollution from heavy-duty vehicles and engines. EPA sought input on this effort from the public, including all interested stakeholders.

The docket for this NPRM is available at regulations.gov Docket ID # EPA-HQ-OAR-2019-0055.

  • Proposed rule (pdf) (published March 28, 2022)

Public Hearing Testimony Transcript; Written Comments

EPA held virtual hearings on April 12-14, 2022 for interested persons and entities to provide an opportunity for oral presentation of data, views, or arguments on the proposal. Transcripts of the virtual hearing testimony are available below (the transcripts are redacted to remove potential Personal Identifiable Information (PII)):

  • Virtual Hearing Transcript (pdf) (April 12, 2022) (pdf) (5.36 MB)
  • Virtual Hearing Transcript (pdf) (April 13, 2022) (pdf) (5.09 MB)
  • Virtual Hearing Transcript (pdf) (April 14, 2022) (pdf) (4.61 MB)

Rule History

  • Advance Notice of Proposed Rule: Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engine Standards

Additional Resources

  • Fact sheets:
    • Heavy-Duty 2027 and Beyond: Clean Trucks Proposed Rulemaking (pdf) (March 2022, EPA-420-F-22-007)
    • Vehículos Pesados, 2027 en Adelante: Propuesta de Reglamentación Sobre Camiones Limpios (pdf) (March 2022, EPA-420-F-22-016)
    • Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards, Overview Briefing of the Proposal (pdf) (1.73 MB, April 2022)
    • Proposed Confidentiality Determinations for Certain Information Related to Engines, Vehicles and Equipment (pdf) (March 2022, EPA-420-F-22-009)
    • Plain-Language Format of Emission Regulations for Mobile Sources (pdf) (March 2022, EPA-420-F-22-011)
  • Draft Regulatory Impact Analysis (RIA) (pdf) (March 2022, EPA-420-D-22-001)
  • Draft Technical Support Document (TSD) (pdf) (February 2022, EPA-420-D-22-002)
  • Redline Version of EPA’s Proposed Regulatory Amendments (pdf) (6.87 MB, February 2022)
  • Supporting Testing, Research, and Modeling

Regulations for Emissions from Vehicles and Engines

  • Onroad
    • Passenger Vehicles
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  • Greenhouse Gas
Contact Us About Regulations for Emissions from Vehicles and Engines
Contact Us About Regulations for Emissions from Vehicles and Engines to ask a question, provide feedback, or report a problem.
Last updated on November 21, 2024
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