TABLE 1.1 EPA's Review and Implementation Timetable for Particulate-Matter Standards*

Past Actions

1971

EPA issues TSP NAAQS

1979–1987

Review of criteria and standards

1987

EPA issues PM10 NAAQS

1994–1997

Review of criteria and standards

1997

EPA issues PM2.5 and revised PM10 NAAQS

Planned Review and Implementation of PM2.5 NAAQS

1999

EPA will designate areas as ''unclassifiable" regarding attainment of the NAAQS for PM2.5

1998–2000

PM2.5 monitors to be in place nationwide

1998–2003

PM2.5 monitoring data to be collected nationwide

2002

EPA will complete 5-year scientific review of PM2.5 standards, leading to possible revision

2002–2005

EPA will designate nonattainment areas for PM2.5

2005–2008

States will submit implementation plans for meeting the PM2.5 standard.

2012–2017

States will have up to 10 years to meet PM2.5 standards plus two 1-year extensions

* The impact of the 5/14/99 U.S. appeals court decision on this timetable is not possible to predict at this time.

provide independent guidance for planning the research program and monitoring its implementation. Specifically, the committee was charged to assess research priorities, develop a conceptual research



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