Public Hearing and Public Comments: Amendments and Nonconformance Penalties for Model Year 2027 and Later Heavy-Duty Highway Engines and Amendments to Inducement Provisions for SCR-Equipped Diesel Engines: Proposed Rule
Summary
To view documents supporting this proposed rulemaking as well as comments submitted, please visit regulations.gov and access the rule under Docket ID Number EPA-HQ-OAR-2026-0728 or see the Proposed Rule page.
Public Comment Opportunity
EPA invites public comment on the proposed rule, Amendments and Nonconformance Penalties for Model Year 2027 and Later Heavy-Duty Highway Engines and Amendments to Inducement Provisions for SCR-Equipped Diesel Engines which was announced on July 9, 2026, and published on July 14, 2026, in the Federal Register under Docket ID number EPA-HQ-OAR-2026-0728. All comments received will be included in the public docket without change and will be made available for public inspection at Federal eRulemaking Portal, including any personally identifiable information provided.
Public Hearing
Thank you for your interest in the virtual public hearing for the “Amendments and Nonconformance Penalties for Model Year 2027 and Later Heavy-Duty Highway Engines and Amendments to Inducement Provisions for SCR-Equipped Diesel Engines” Notice of Proposed Rulemaking.
The public hearing has concluded.
The deadline for submitting written comments is 11:59 PM EDT on Saturday August 29, 2026.
For more information on the proposed rule, as well as to see the transcripts of the public hearing testimony when available, see: the proposed rule page. The transcripts will also be available to view in the docket for the proposed rule at: Docket ID No. EPA-HQ-OAR-2026-0728.