# Automotive Fuel Ratings Certification and Posting
> **US Federal Trade Commission** · Final rule. · Published 2011-04-08 · Effective 2011-05-31 · 76 FR 19684
## Document
- **Document number:** 2011-8097
- **Category:** final-rule
- **Agency:** US Federal Trade Commission
- **Federal Register citation:** 76 FR 19684
- **CFR reference:** 16 CFR 306
- **Publication date:** 2011-04-08
- **Effective date:** 2011-05-31
## Abstract

The Commission issues final amendments to its Rule for Automotive Fuel Ratings, Certification and Posting ("Fuel Rating Rule" or "Rule") by allowing an alternative octane rating method and making other miscellaneous revisions. The Commission declines to issue final ethanol labeling amendments at this time.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/04/08/2011-8097/automotive-fuel-ratings-certification-and-posting)
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