Enforcement Advisory: #149: Reid Vapor Pressure of Gasoline

This page last reviewed March 3, 2009

Advisory

Fuel Specifications

Number 149

February 1997


REID VAPOR PRESSURE OF GASOLINE


The purpose of this advisory is to remind all producers, importers, blenders, distributors, haulers and retailers of gasoline in California of their responsibilities concerning the Reid vapor pressure (RVP) of such fuel. The RVP regulation is seasonal and geographical, and therefore requires periodic review.   

Section 2262.1 (formerly Section 2251.5) of Title 13 of the California Code of Regulations states that during the basic regulatory control period, no person shall sell, offer for sale, dispense, supply, offer for supply, or transport California gasoline which has an RVP exceeding 7.00 pounds per square inch. Section 2262.1 further states that during the additional regulatory control period, gasoline production facilities and import facilities are required to meet the 7.00 psi RVP limit one month before terminals and retailers. The additional regulatory control period also applies to parties when they transport gasoline directly from a production or import facility.

Sometimes gasoline will be produced or imported in an air basin that is subject to a regulatory control period, but will be shipped for sale in another air basin where the control periods have not yet begun. Therefore, the regulation exempts gasoline being sold from a production or import facility during an additional regulatory control period where demonstrated precautions have been taken to assure the gasoline will be delivered to service stations in air basins where neither regulatory control period has yet begun. It also exempts sales in an air basin where the basic regulatory control period applies if there have been demonstrated precautions assuring the gasoline will only be delivered to service stations when they are not subject to the basic regulatory control period.

The following table lists the air basins, the basic regulatory control periods, and the additional regulatory control periods for gasoline producers and importers.

Air Basins

Basic Regulatory
Control Period

Additional Regulatory
Control Period
(Producers & Importers)

South Coast and Ventura County

April 1 - October 31     

March 1 - March 31

San Diego

April 1 - October 31

March 1 - March 31

South East Desert

April 1 - October 31

March 1 - March 31

Great Basin Valley

May 1 - September  30

April 1 - April 30

San Francisco Bay Area

May 1 - October 31

April 1 - April 30

San Joaquin Valley

May 1 - October 31

April 1 - April 30

Sacramento Valley

May 1 - October 31

April 1 - April 30

Mountain Counties

May 1 - October 31

April 1 - April 30

Lake Tahoe

May 1 - October 31

April 1 - April 30

North Coast

June 1 - September 30

May 1 - May 31

Lake County  

June 1 - September 30

May 1 - May 31

Northeast Plateau

June 1 - September 30

May 1 - May 31

North Central Coast

June 1 - October 31

May 1 - May 31

South Central Coast
(Except Ventura County)

June 1 - October 31

May 1 - May 31

Be advised that the Air Resources Board Compliance Division routinely samples gasoline and tests for Reid vapor pressure and other required specifications. Additionally, it is imperative that all producers, importers, blenders, distributors, and haulers ascertain the intended location for use of the fuel they market and/or transport, and take steps to ensure that all gasoline is sold or supplied according to the requirements of the regulations.

If you have questions regarding this advisory, please contact Mr. Mark Stover, Manager, Fuels Field Enforcement Section at (916) 322-2056.

James R. Ryden, Chief
Enforcement Division
California Air Resources Board
Post Office Box 2815, Sacramento, CA 95812

Advisories

preload