Final Statement of Reasons for Rulemaking, Including Summary of Comments and Agency Response CARB

Supporting & Related MaterialEPA-HQ-OAR-2026-0728-0059
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Title
Final Statement of Reasons for Rulemaking, Including Summary of Comments and Agency Response CARB

Public Hearing to Consider Proposed Revisions to On-Board Diagnostic System Requirements, Including the Introduction of Real Emissions Assessment Logging (Real), for Heavy-Duty Engines, Passenger Cars, Light-Duty Trucks, and Medium-Duty Vehicles and Engines. This document contains the Agency response to selected public comments.

Posted
Jul 9, 2026