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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, 85, 86, 87, 600, 1030, 1033, 1036, 1037, 1039, 1042, 1043, 1045, 1048, 1051, 1054, 1060, 1065, 1066, 1068, and 1090
Docket Numbers

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Rule Summary

Related Information

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 starting in model year (MY) 2027. The proposed standards would significantly reduce emissions of smog- and soot-forming nitrogen oxides (NOx) from heavy-duty gasoline and diesel engines and set more stringent greenhouse gas (GHG) standards for certain commercial vehicle categories. This proposal is consistent with President Biden’s Executive Order, “Strengthening American Leadership in Clean Cars and Trucks” and would ensure the heavy-duty vehicles and engines that drive American commerce are as clean as possible while charting a path to advance zero-emission vehicles in the heavy-duty fleet.

The proposal also includes amendments regarding the confidentiality of certain information submitted to EPA for engines, vehicles, and equipment subject to emission standards and other requirements under the CAA. In addition, the proposal includes other limited amendments to the regulations that implement our air pollutant emission standards for other sectors (e.g., light-duty vehicles, marine diesel engines, locomotives, various types of nonroad engines, vehicles, and equipment).

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 here:

EPA has extended the public comment period for written comments on the proposal to May 16, 2022. There are several ways to provide written comments on the proposal, identified by Docket ID No. EPA–HQ– OAR–2019–0055:

Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards; Extension of Comment Period (pdf) (published May 3, 2022)

  • Federal eRulemaking Portal for this proposal: click on the “Comment” box under the proposed rule document, which is the first document listed under the “browse comments” tab. For more information, see Find Dockets, Documents, and Comments FAQs.
  • Email: a-and-r-Docket@epa.gov. Include Docket ID No. EPA–HQ–OAR– 2019–0055 in the subject line of the message.
  • Mail: U.S. Environmental Protection Agency, EPA Docket Center, OAR, Docket EPA–HQ–OAR–2019– 0055, Mail Code 28221T, 1200 Pennsylvania Avenue NW, Washington, DC 20460.
  • Hand Delivery or Courier (by scheduled appointment only): EPA Docket Center, WJC West Building, Room 3334, 1301 Constitution Avenue NW, Washington, DC 20004. The Docket Center’s hours of operations are 8:30 a.m.–4:30 p.m., Monday–Friday (except Federal Holidays).

If you choose to submit confidential business information (CBI) as a comment to the proposed rule’s docket, please send those materials to Brian Nelson using the email or mailing address in the FOR FURTHER INFORMATION CONTACT section of the Federal Register proposed rule linked above. Please also follow these instructions: Clearly mark the part or all of the information that you claim to be CBI. In addition to one complete version of the comment that includes information claimed as CBI, you must submit a non-CBI copy of the comment that does not contain the information claimed as CBI for inclusion in the public docket. Information marked as CBI will not be disclosed except in accordance with procedures set forth in 40 CFR part 2. EPA will submit the non-CBI copy to the public docket and note a placeholder in the public docket for the CBI copy. For additional information about CBI submissions, visit Commenting on EPA Dockets.

La EPA recientemente extendió el período de comentarios públicos durante el cual se pueden presentar comentarios por escrito sobre la propuesta, hasta el 16 de mayo. Hay varias maneras de proporcionar comentarios por escrito sobre la propuesta, identificada con el número de expediente EPA-HQ- OAR-2019-0055:

  • Portal federal de eRulemaking para esta propuesta: haga clic en la casilla "Comment" (Comentar) que está debajo del documento de la regulación propuesta, que es el primer documento que aparece en la pestaña "browse comments" (Buscar comentarios). Para obtener más información, vea "Find Dockets, Documents, and Comments FAQs" (Encontrar expedientes, documentos, comentarios y preguntas frecuentes).
  • Correo electrónico: a-and-r-Docket@epa.gov. Incluya el número de identificación del expediente EPA–HQ–OAR– 2019–0055 en el renglón del asunto del mensaje.
  • Por correo: AU.S. Environmental Protection Agency, EPA Docket Center, OAR, Docket EPA–HQ–OAR–2019– 0055, Mail Code 28221T, 1200 Pennsylvania Avenue NW, Washington, DC 20460.
  • Entrega en mano o servicio de correo (únicamente con cita previa): EPA Docket Center, EPA, WJC West Building, Room 3334, 1301 Constitution Avenue NW, Washington, DC 20004. El horario de atención del Centro de expedientes es de 8:30 a.m. a 4:30 p.m., de lunes a viernes (excepto en los feriados federales).

Rule History

Additional Resources

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