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DOT/NHTSA

RIN: 2127-AM28

Publication ID: Fall 2021

Title: Improvements for Heavy-Duty Engine and Vehicle Test Procedures, and Other Technical Amendments
Abstract: This rulemaking would propose changes to NHTSA regulatory text to align with EPA's test procedures used for heavy-duty engines and vehicles to demonstrate compliance with fuel consumption and emission standards. The rulemaking would also propose other amendments that would add compliance flexibility, harmonize with other requirements, add clarity, correct various errors, and streamline the regulations.
Agency: Department of Transportation(DOT)	Priority: Substantive, Nonsignificant
RIN Status: Previously published in the Unified Agenda	Agenda Stage of Rulemaking: Proposed Rule Stage
Major: No	Unfunded Mandates: No
CFR Citation: 49 CFR 523    49 CFR 534    49 CFR 535
Legal Authority: delegation of authority at 49 CFR 1.95

Legal Deadline:  None

Timetable: Action Date FR Cite NPRM  11/00/2021

Regulatory Flexibility Analysis Required: No	Government Levels Affected: None
Small Entities Affected: No	Federalism: No
Included in the Regulatory Plan: No
RIN Information URL: www.regulations.gov	Public Comment URL: www.regulations.gov
RIN Data Printed in the FR: No
Agency Contact: Gregory Powell Program Analyst Department of Transportation National Highway Traffic Safety Administration 1200 New Jersey Avenue SE, Washington, DC 20590 Phone:202 366-5206 Email: gregory.powell@dot.gov