Gasoline
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
Variances from California Gasoline Specifications Frequently Asked Questions
The California Air Resources Board (CARB) has posted a Frequently Asked Questions (FAQ) document designed to provide information about the variance process specified by California’s Reformulated Gasoline Regulations (Title 13, California Code of Regulations, Section 2271), and notes that Senate Bill (SB) 237 (Grayson, Statutes of 2025) added a new statutory process for the Governor to potentially suspend gasoline Reid Vapor Pressure (RVP) regulatory control periods if certain conditions are met.
Gasoline Standards
California Gasoline Data, Facts, and Statistics
Petroleum Products Program