# EPA's Denial of the Petition To Reconsider the Greenhouse Gas Emissions Standards and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles
> **Rule** · Denial of petition to reconsider. · Published 2012-08-27 · Effective 2012-08-27 · 77 FR 51701
## Document
- **Document number:** 2012-21032
- **Category:** air-emissions
- **Federal Register citation:** 77 FR 51701
- **CFR reference:** 40 CFR 85
- **Publication date:** 2012-08-27
- **Effective date:** 2012-08-27
- **EPA docket:** EPA-HQ-OAR-2010-0162
## Abstract

The Environmental Protection Agency (EPA or Agency) is denying the petition of Plant Oil Powered Diesel Fuel Systems, Inc. ("POP Diesel") to reconsider the final rules establishing emissions standards to reduce greenhouse gas emissions from on-road heavy-duty vehicles.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/08/27/2012-21032/epas-denial-of-the-petition-to-reconsider-the-greenhouse-gas-emissions-standards-and-fuel-efficiency)
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