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Technical Information

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Here you can find links to various technical resources related to the 1997 ground-level ozone designations process.

Technical justification (all chapters, ZIP archive) (100MB) in support of EPA's final designations.

Chapter 1: Introduction (PDF) (5 pp, 104KB)
Chapter 2: 8-Hour Ozone Nonattainment Designations and Classifications by State (PDF) (17 pp, 332KB)
Chapter 3: Justifications in Support of EPA's 8-Hour Ozone Designations and Classifications (PDF) (438 pp, 3.2MB)
Chapter 4: Classifications and Air Quality Data (PDF) (29 pp, 64KB)
Chapter 5: Ranking of Nonattainment Counties (16 pp, 340KB)
Chapter 6: Additional Supporting Documents (793 pp, 99.2MB)
Chapter 7: Evaluation of Early Action Compact Local Plans (Milestone, March 31, 2004) (PDF) (88 pp., 644KB)
Appendix A (PDF) (4 pp, 244KB)

Responses to Comments (PDF) (261 pp, 783 KB) on 8-hour ozone designations
Green Book on 8-h our ozone nonattainment
Technical justification in support of EPA's intended (not final) nonattainment areas (ZIP archive) (1.2MB)
Air quality technical data used to determine an area's designation status.

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