The California Reformulated Gasoline program set stringent standards for California gasoline that produced cost-effective emission reductions from gasoline-powered vehicles. The CaRFG program was implemented in three phases.
More about this program
Proposed Amendments to the California Reformulated Gasoline Regulations
The California Air Resources Board (CARB) will conduct a public hearing to consider proposed amendments to the California Reformulated Gasoline Regulations for E15. For more information, please visit the 2026 Rulemaking Page.