- Direct Final Rule (PDF) (14 pp, 113K, published February 22, 2006) - National
- Direct Final Rule (PDF) (9 pp, 90K, published February 22, 2006 /) - California
- Fact Sheet: Removal of Reformulated Gasoline Oxygen Content Requirement and Revision of Commingling Prohibition to Address Non-Oxygenated Reformulated Gasoline (PDF)(3 pp, 239 K, February 2006, EPA420-F-06-020)