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Exhibit 4: Areas Meeting On-Road Mobile Source Emission Goal (FY 1996-2001)
Year Ozone CO PM10
1996 96.7% 92.6% 68.2%
1997 98.0% 96.2% 86.4%
1998 90.3% 96.4% 96.0%
1999* 93.0% 96.2% 100.0%
2000 97.8% 95.7% 100.0%
2001 97.0% 100.0% 94.4%
2002 98.0% 100.0% 96.3%

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United States Department of Transportation - Federal Highway Administration