Area Designations for 1997 Fine Particle (PM2.5) Standards
December 17, 2004 Designations
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On December 17, 2004, EPA took final action to designate attainment and nonattainment areas under the more protective national air quality standards for fine particles. Follow the links below to read:
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Fact sheet on final designationsFinal designations rule
- Preamble (PDF) (45 pp, 340KB)
- Part 81
Table showing nonattainment designations