CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 81—DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES > SUBPART C—Section 107 Attainment Status Designations (§81.300 to §81.356) > 81.308—Delaware.

81.308—Delaware.

Delaware—TSP
Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards
City of Wilmington X
Section within City of Newark bounded by: College Avenue, CONRAIL tracks, South Chapel Street and Chestnut Hill Road X
Remainder of New Castle County X
Kent County X
Sussex County X
Delaware—SO2
Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards
New Castle County X
Kent County X
Sussex County X
Delaware—Carbon Monoxide
Designated Area Designation Classification
Date 1 Type Date 1 Type
Kent County Unclassifiable/Attainment
New Castle County Unclassifiable/Attainment
Sussex County Unclassifiable/Attainment
1 This date is November 15, 1990, unless otherwise noted.
Delaware—Ozone (1-Hour Standard)3
Designated area Designation Classification
Date 1 Type Date 1 Type
Philadelphia-Wilmington-Trenton Area:
Kent County Nonattainment Severe-15.
New Castle County Nonattainment Severe-15.
Sussex County Area:
Sussex County (2) Nonattainment (2) Marginal.
1 This date is November 15, 1990, unless otherwise noted.
2 This date is October 18, 2000.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Delaware.
Delaware—NO2
Designated area Does not meet primary standards Cannot be classified or better than national standards
New Castle County X
Kent County X
Sussex County X
Delaware—Ozone (8-Hour Standard)
Designated area Designation a Category/classification
Date 1 Type Date 1 Type
Philadelphia-Wilmington-Atlantic Ci, PA-NJ-MD-DE:
Kent County Nonattainment Subpart 2 /Moderate.2
New Castle County Nonattainment Subpart 2 /Moderate.2
Sussex County Nonattainment Subpart 2 /Moderate.2
a Includes Indian Country located in each county or area, except as otherwise specified.
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Delaware—PM2.5 (Annual NAAQS)
Designated area Designation a
Date 1 Type
Philadelphia-Wilmington, PA-NJ-DE:
New Castle County Nonattainment.
Southern Delaware Intrastate AQCR:
Kent County Unclassifiable/Attainment.
Sussex County Unclassifiable/Attainment.
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Delaware—PM2.5 [24-hour NAAQS]
Designated area Designation for the 1997 NAAQS a Designation for the 2006 NAAQS a
Date 1 Type Date 2 Type
Philadelphia-Wilmington, PA-NJ-DE:
New Castle County Unclassifiable/Attainment Nonattainment.
Southern Delaware Intrastate AQCR:
Kent County Unclassifiable/Attainment Unclassifiable/Attainment.
Sussex County Unclassifiable/Attainment Unclassifiable/Attainment.
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is 30 days after November 13, 2009, unless otherwise noted.

Code of Federal Regulations

[43 FR 40505, Sept. 12, 1978, as amended at 47 FR 31878, July 23, 1982; 56 FR 56738, Nov. 6, 1991; 63 FR 31035, June 5, 1998; 65 FR 45215, July 20, 2000; 69 FR 23892, Apr. 30, 2004; 70 FR 963, Jan. 5, 2005; 70 FR 44475, Aug. 3, 2005; 76 FR 3842, Jan. 21, 2011]