REID VAPOR PRESSURE RESTRICTIONS TAKE EFFECT JUNE 1, 2014 

Each year from June 1 through Sept. 15, the Reid Vapor Pressure (RVP) of gasoline is restricted at the retail level
to help reduce Volatile Organic Compound emissions into the atmosphere. With the requirement of reformulated
gasoline in certain areas and states mandating more restrictive gasoline RVP’s for various conventional gasoline
areas, the program has become more complex. Please be advised that this information reflects our understanding
of the regulatory requirements and is subject to change by EPA or state agencies.


Conventional Gasoline: Federal regulations limit the maximum allowable RVP for conventional gasoline at the retail
level for the period June 1 through September 15. During this period, the maximum allowable RVP is 9.0 p.s.i.,
except for certain ozone non-attainment areas where the maximum RVP is 7.8 p.s.i. or lower.


The following counties require less than 7.8 p.s.i. RVP: Lewanee, Livingston, Macom, Monroe, Oakland, St. Clair,
Washtenaw and Wayne counties will require 7.0 p.s.i. RVP conventional gasoline.