Gasoline SulfUr and RVP

Sulfur

The Environmental Protection Agency established regulations to substantially lower the sulfur levels in gasoline in 2000. On January 1, 2006, the sulfur content for gasoline produced at most refineries was lowered to a per-gallon maximum of 80 parts per million (ppm), with an overall maximum annual average of 30 ppm. This regulation was phased-in for refineries in the Rocky Mountain area and for small refiners.

AFPM members continue to work to ensure that EPA’s regulations for sulfur content of gasoline fuel are met – or exceeded. Our members are dedicated to working cooperatively with government at all levels to ensure both an adequate supply of transportation fuels and compliance with environmental and other regulatory standards.

Related Documents

• Summary of EPA gasoline sulfur regulations

Related Web Links

• EPA information on the Tier 2 Gasoline Sulfur Program
• Additional EPA information on final rule amendments
• EPA's information and guidance on compliance

Tier 3

On May 21, 2010, President Obama announced an initiative for Tier 3 emissions tailpipe standards for passenger cars and light-duty trucks beginning with model year 2017. This also includes possible regulatory changes for gasoline parameters (i.e., sulfur, RVP).

EPA is expected to release a proposal for public comment soon.

RVP

Reid vapor pressure (RVP) is a gasoline parameter that measures volatility. It is controlled by EPA and individual states to limit a vehicle's hydrocarbon emissions.

Links:

• EPA information on RVP