EPA RVP test results

Reid vapor pressure (RVP) constitutes a special case, as it is federally regulated, but:

The limit for areas that use conventional gasoline and conform to the EPA’s air quality standards are subject to a 9.0 psi (62.1 kPa) summertime limit. However, there are non-conforming areas that may be subject to tighter standards via adoption of low-RVP ”boutique fuels,” most often featuring RVP limits of 7.8 psi (53.8 kPa) and 7.0 psi (48.3 kPa). As alluded to above, areas that use RFG were not subject to a limit for RVP, as it was one of the parameters included in the Complex Model: compliance was therefore mea