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TRANSPORTATION ENERGY DATA BOOK: EDITION 22 - Center for ...

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2–12<br />

The types of gasoline supplied today are significantly different than in 1981, mostly due to air quality mandates.<br />

The phase-out of leaded gasoline began in 1978 and the phase-in of re<strong>for</strong>mulated gasoline began in 1995.<br />

Figure 2.2. Motor Gasoline Quantities by Type, 1981 and 2001<br />

Source:<br />

U.S. Department of Energy, Energy In<strong>for</strong>mation Administration, Petroleum Supply Annual 2000,<br />

Washington, DC, Tables 17 and 20, June 2002.<br />

U.S. Department of Energy, Energy In<strong>for</strong>mation Administration, The Motor Gasoline Industry: Past,<br />

Present and Future, Washington, DC, Table 5.<br />

U.S. Department of Transportation, Federal Highway Administration, Highway Statistics 2000,<br />

Washington, DC, Table MF-33E, and annual.<br />

Note:<br />

Re<strong>for</strong>mulated gasoline has lower concentrations of certain volatile organic compounds in a <strong>for</strong>mulation<br />

intended to reduce ozone-<strong>for</strong>ming hydrocarbons and air toxics. It is required in the worst ozonenonattainment<br />

areas.<br />

Gasohol category includes all oxygenate blends except re<strong>for</strong>mulated gasoline.<br />

Unleaded gasoline is now known as conventional gasoline.<br />

<strong>TRANSPORTATION</strong> <strong>ENERGY</strong> <strong>DATA</strong> <strong>BOOK</strong>: <strong>EDITION</strong> <strong>22</strong>—2002

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