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Virginia Administrative Code
Title 2. Agriculture
Agency 5. Department of Agriculture And Consumer Services
Chapter 425. Vapor Pressure Requirements for Gasoline Ethanol Blends
11/21/2024

2VAC5-425-20. Vapor pressure requirements; exceptions.

When gasoline is blended with ethanol, the ethanol shall meet the requirements of ASTM D4806-16a and the blend shall meet the requirements of ASTM D4814-16a, with following permissible exceptions:

1. For blends containing nine to 10 volume percent ethanol, the maximum vapor pressure shall not exceed the ASTM D4814-16a limits by more than 1.0 psi during the period of June 1 through September 15.

2. For blends containing one or more volume percent ethanol for volatility class A, B, C, or D, the maximum vapor pressure shall not exceed ASTM D4814-16a limits by more than 1.0 psi during the period of September 16 through May 31.

3. For blends containing one or more volume percent ethanol for volatility class E, the maximum vapor pressure shall not exceed ASTM D4814-16a limits by more than 0.5 psi during the period of September 16 through May 31.

Statutory Authority

§§ 59.1-153 and 59.1-156 of the Code of Virginia.

Historical Notes

Derived from Virginia Register Volume 33, Issue 24, eff. August 24, 2017.

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