Resetting NHTSA's Fuel Economy Program: Commercial Medium- and Heavy-Duty On-Highway Vehicles and Work Trucks

The record

Publisher

Federal Register

Agency

Transportation Department; National Highway Traffic Safety Administration

Source

Federal Register

Kind

Federal Register: final rule

Jurisdiction

United States

Topics

Transport

Importance

Notable, the middle of three tiers Kresmion sets by fixed rules from the source's own fields

Published (source time)

2026-08-31 (the source gives a date only)

First seen on Kresmion

2026-10-26 18:24 UTC

The original

• PDF (Federal Register)

Source: Federal Register (federalregister.gov). U.S. government work, public domain.

The publisher's summary

The National Highway Traffic Safety Administration is issuing this interpretive rule regarding the scope of its authority to set fuel economy standards for commercial medium- and heavy-duty on-highway vehicles and work trucks. This rule describes NHTSA's authority to set vehicle standards, which does not include the authority to set separate standards for engines. NHTSA will review its existing standards applicable to commercial medium- and heavy-duty on-highway vehicles and work trucks for consistency with this interpretation in a separate rulemaking. Pending the rulemaking process, NHTSA will exercise its enforcement authority with regard to affected standards in accordance with the interpretation set forth in this rule.

The publisher's words, as published.

Federal Register document

Document number

2026-17756

Document type

Rule

Status

Published