Bump-Down Requests

Announcements

On September 15, 2004, EPA reclassified nine of the identified 8-hour ozone nonattainment areas from moderate to the next lower classification—marginal. Follow the links below to read:

Fact sheet about the change
Part 81 revision (PDF) (15 pp, 116KB)

The Clean Air Act authorizes EPA to reclassify an ozone nonattainment area to the next higher or lower classification under certain conditions. The Act requires reclassifications to occur within 90 days of the area's initial classification.

EPA received nine requests for reclassification to a lower category — a "bump down." No areas requested reclassification to a higher category — a "bump up."

Reclassifying a nonattainment area to a lower classification means that the area is expected to achieve clean air sooner. Moderate areas must attain the 1997 national air quality standards for 8-hour ozone no later than June 2010. Marginal areas must attain no later than June 2007.

This page offers links to the requests, supporting documents provided by the states, and documents produced by the EPA relating to each area.

You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.

Cass and Muskegon Counties, Michigan

DEQ bump-down request (PDF) (2 pp, 197KB) July 15, 2004
Additional submittal (PDF) (2 pp, 32KB) August 20, 2004
EPA technical support for Cass County (PDF) (7 pp, 66.5KB) September 15, 2004
EPA technical support for Muskegon County (PDF) (7 pp, 66.9KB) September 15, 2004

Detroit, Michigan

DEQ bump-down request (PDF) (2 pp, 178KB) July 15, 2004

Attachment 1 (PDF) (3 pp, 191KB)
Attachment 2 (PDF) (1 p, 121KB)
Attachment 3 (PDF) (9 pp, 228KB)
Attachment 4 (PDF) (12 pp, 125KB)
Acronyms (PDF) (1 p, 35KB)

Additional information (PDF) (6 pp, 520KB) September 10, 2004
- Attachment (PDF) (24 pp, 1.1MB)
EPA technical support (PDF) (8 pp, 89.6KB) September 15, 2004

Greensboro, North Carolina

DENR bump-down request (PDF) (2 pp, 178KB) July 14, 2004
EPA technical support (PDF) (10 pp, 67KB) September 15, 2004

Kent and Queen Anne's Counties, Maryland

Governor Ehrlich's cover letter (PDF) (1 p, 24KB)
MDE bump-down request (PDF) (20 pp, 919KB) July 15, 2004
Early Action Compact Modeling Submittal (PDF) (6 pp, 76KB) March 31, 2004
- Appendix A
Delaware comments (PDF) (8 pp, 240KB) August 11, 2004
EPA technical support (PDF) (7 pp, 32KB) September 15, 2004

LaPorte County, Indiana

IDEM bump-down request (PDF) (3 pp, 96.2KB) July 15, 2004
- Photochemical analysis 1 (PDF) (5 pp, 121KB)
- Photochemical analysis 2 (PDF) (1 p, 62KB)
- Photochemical analysis 3 (PDF) (8 pp, 201KB)
EPA technical support (PDF) (7 pp, 68KB) September 15, 2004

Lancaster County, Pennsylvania

PADEP request cover letter (PDF) (1 p, 196KB) July 9, 2004
- PADEP bump-down request (PDF) (38 pp, 1.13 MB) June 2004
Additional information from PADEP (PDF) (3 pp, 104KB) August 23, 2004
Modeling information from PADEP (PDF) (1 p, 56KB) August 23, 2004
Delaware comments (PDF) (1 pp, 56KB)
EPA technical support (PDF) (6 pp, 29KB) September 15, 2004

Memphis, Tennessee-Arkansas

Tennessee-Arkansas Reclassification Petition for Memphis (PDF) (144 pp, 4.5MB) July 15, 2004
Arkansas reclassification request for Crittenden County (PDF) (1 p, 37KB) July 14, 2004
- Arkansas Highway Commission describing CMAQ (PDF) (1 p, 37KB)
Tennessee supplement to the July 14 petition (PDF) (2 pp, 40KB) July 19, 2004
- Supplement 1 (PDF) (3 pp, 55.4KB)
- Volatile Organic Compound rules (PDF) (4 pp, 74KB)
- Vehicle inspections rules (PDF) (16 pp, 124KB)
- Vehicle tampering rules (PDF) (6 pp, 64KB)
Sierra Club concerns (PDF) (3 pp, 192KB) August 30, 2004
Tennessee additional information (PDF) (2 pp, 296KB) September 9, 2004
- Memphis and Shelby County Health Department additional information (PDF) (3 pp, 900KB)
- Attachments (PDF) (5 pp, 1 MB)
EPA technical support (PDF) (9 pp, 91KB) September 15, 2004

Richmond, Virginia

DEQ bump-down request.pdf (PDF) (1 p, 52KB) July 12, 2004
Petition Technical Support (PDF) (14 pp, 913KB)
Delaware comments (PDF) (13 pp, 452KB) August 3, 2004
Followup letter (PDF) (2 pp, 107KB) August 11, 2004
RACT and OTC expansion regulation timetable (PDF) (3 pp, 408KB) September 2, 2004
Additional information cover letter (PDF) (2 pp, 88KB) August 30, 2004
1. Additional technical support (PDF) (5 pp, 208KB)
2. Potential controls (PDF) (2 pp, 60KB)
Final Technical Support Document (PDF) (15 pp, 600KB) September 9, 2004
EPA technical support (PDF) (8 pp, 80KB) September 15, 2004