# Greenhouse Gas Emissions Standards and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles
> **US Department of Transportation** · Correcting amendments. · Published 2011-09-28 · Effective 2011-11-14 · 76 FR 59922
## Document
- **Document number:** 2011-24978
- **Category:** other
- **Sub-agency:** US Department of Transportation
- **Federal Register citation:** 76 FR 59922
- **CFR reference:** 49 CFR 535
- **Publication date:** 2011-09-28
- **Effective date:** 2011-11-14
- **DOT docket:** NHTSA 2010-0079
## Abstract

This document contains corrections to the final rule regulations (49 CFR 535.6), which were published in the Federal Register of Thursday, September 15, 2011 (76 FR 57106). The regulations established fuel efficiency standards for medium- and heavy-duty engines and vehicles, as prescribed under the Energy Independence and Security Act (49 U.S.C. 32902(k)(2)).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/09/28/2011-24978/greenhouse-gas-emissions-standards-and-fuel-efficiency-standards-for-medium--and-heavy-duty-engines)
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