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Area Designations for 1997 Ground-level Ozone Standards

Reclassifications

The following table lists ozone nonattainment areas reclassified to a higher category.

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Nonattainment Area Original
Classification
Current
Classification

Proposed Approval Final Approval Effective Date
REGION 4
GEORGIA
Atlanta, GA Marginal Moderate 10/16/07, 72 FR 58572 (PDF) (6 pp, 79KB) 3/6/08 73 FR 12013 (PDF) (5 pp, 73KB) 4/7/08
TENNESSEE
Memphis, TN-AR Marginal Moderate 10/16/07, 72 FR 58577 (PDF) (6 pp, 73KB) 3/28/08 73 FR 16547 (PDF) (7 pp, 78KB) 4/28/08
REGION 6
LOUISIANA
Baton Rouge, LA Marginal Moderate 10/30/07, 72 FR 61315 (PDF) (6 pp, 75KB) 3/21/08, 73 FR 15087 (PDF) (6 pp, 75KB) 4/21/08
TEXAS
Beaumont-Port Arthur, TX Marginal Moderate 10/30/07 72 FR 61310 (PDF) (6 pp, 77KB) 3/18/08 73 FR 14391 (PDF) (6 pp, 74KB) 4/17/08
Houston-Galveston-Brazoria, TX Moderate Severe-15 12/31/07 72 FR 74252 (PDF) (4 pp, 69KB)

10/01/08 73 FR 56983 (PDF) (13 pp, 104KB)

10/31/08
REGION 9
CALIFORNIA
Imperial Co., CA Marginal Moderate 11/23/07 72 FR 65682 (PDF) (5 pp, 66KB) 2/13/08 73 FR 8209 (PDF) (4 pp, 63KB) 3/14/08
Ventura Co., CA Moderate Serious - 5/20/08 73 FR 29073 (PDF) (3 pp, 57KB) 6/19/08

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