# Gasoline Volatility Standard for the Denver/Boulder Area
> **Rule** · — · Published 2004-04-06 · 69 FR 17932
## Document
- **Document number:** 04-55504
- **Category:** other
- **Federal Register citation:** 69 FR 17932
- **CFR reference:** 40 CFR 80
- **Publication date:** 2004-04-06
## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/04/06/04-55504/gasoline-volatility-standard-for-the-denverboulder-area)
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