Jump to main content or area navigation.

Contact Us

Area Designations for the 2012 Annual Fine Particle (PM2.5) Standard

State Recommendations and EPA Responses for Area Designations

2012 Annual PM2.5 Standards – State Recommendations and EPA Responses

On August 19, 2014, the EPA sent letters to state and tribal representatives informing them of the EPA’s intended designations, including area boundaries, for the 2012 annual PM2.5 standard. This action takes the next step to implement the standard by responding to initial recommendations made by the states and some tribes to the EPA in December 2013.   These intended decisions are based on air quality monitoring data, recommendations submitted by the states and tribes, and other technical information. The EPA intends to finalize these designations in December 2014.

State recommendations and EPA response letters are presented below.

Tribal recommendations and EPA response letters are available on the Tribal Recommendations page.

These responses are provided here in PDF format for INFORMATIONAL PURPOSES ONLY and do not represent EPA's views on the appropriateness or adequacy of a states’ recommendations.

EPA Intended Designations (Not Final)

State State Recommendation EPA Response State Remarks on EPA Response
Alabama Alabama (PDF) (2pp, 140k) Letter (PDF) (3pp, 100k) Letter (PDF) (2pp, 68k)
Alaska Alaska (PDF) (2pp, 129k) Letter (PDF) (2pp, 1.4 MB)  
American Samoa Letter (PDF) (2pp, 605k)  
Arizona Arizona (PDF) (25pp, 7.5 MB) Letter (PDF) (2pp, 611k)  
Arkansas Arkansas (PDF) (3pp, 92k) Letter (PDF) (3pp, 795k) Letter (PDF) (1pg, 194k)
California California (PDF) (18pp, 2.2 MB)
California – Northern Sierra AQMD (PDF) (23pp, 1.5 MB)
California, revised (PDF) (21pp, 5.1 MB)
Letter (PDF) (2pp, 652k)
CA TSD (PDF) (181pp, 9.2 MB)
Letter (PDF) (3pp, 324k)
Colorado Colorado (PDF) (16pp, 976k) Letter (PDF) (2pp, 42k)  
Connecticut Connecticut (PDF) (10pp, 2.2 MB) Letter (PDF) (2pp, 684k)  
Delaware Delaware (PDF) (88pp, 4.1 MB) Letter (PDF) (2pp, 1.1 MB)  
District of Columbia District of Columbia (PDF) (2pp, 661k) Letter (PDF) (2pp, 1.3 MB)  
Florida Florida (PDF) (1pg, 42k) Letter (PDF) (2pp, 728k)  
Georgia Georgia (PDF) (25pp, 6.2 MB)
Georgia, revised (PDF) (65pp, 13.1 MB)
Letter (PDF) (3pp, 119k)
GA TSD (PDF) (59pp, 2.2 MB)
GA deferred area memo (PDF) (21pp, 1.3 MB)
Letter (PDF) (248pp, 44 MB)
Guam Letter (PDF) (2pp, 598k)  
Hawaii Hawaii (PDF) (5pp, 186k) Letter (PDF) (2pp, 601k)  
Idaho Idaho (PDF) (2pp, 87k) Letter (PDF) (2pp, 1.5 MB)
ID TSD (PDF) (40pp, 11.0 MB)
Illinois Illinois (PDF) (90pp, 11.8 MB) Letter (PDF) (3pp, 527k)
IL TSD (PDF) (8pp, 136k)
Indiana Indiana (PDF) (82pp, 16.2 MB) Letter (PDF) (3pp, 556k)
Louisville TSD (PDF) (30pp, 1.6 MB)
Letter (PDF) (4pp, 720k)
Iowa Iowa (PDF) (5pp, 1.2 MB)
Iowa, Revised (PDF) (2pp, 646k)
Letter (PDF) (2pp, 50k)  
Kansas Kansas (PDF) (10pp, 643k) Letter (PDF) (2pp, 51k)  
Kentucky Kentucky (PDF) (3pp, 150k) Letter (PDF) (2pp, 790k)
Louisville TSD (PDF) (30pp, 1.6 MB)
Cincinnati TSD (PDF) (35pp, 1.9 MB)
Letter (PDF) (4pp, 216k)
Louisiana Louisiana (PDF) (5pp, 111k) Letter (PDF) (3pp, 719k)  
Maine Maine (PDF) (4pp, 173k) Letter (PDF) (2pp, 681k)  
Maryland Maryland (PDF) (2pp, 22k) Letter (PDF) (2pp, 1.1 MB)  
Massachusetts Massachusetts (PDF) (2pp, 335k) Letter (PDF) (2pp, 691k)  
Michigan Michigan (PDF) (2pp, 282k) Letter (PDF) (2pp, 656k)  
Minnesota Minnesota (PDF) (4pp, 586k) Letter (PDF) (2pp, 654k)  
Mississippi Mississippi (PDF) (1pg, 42k) Letter (PDF) (2pp, 790k)  
Missouri Missouri (PDF) (170pp, 13.5 MB) Letter (PDF) (2pp, 50k) Letter (PDF) (2pp, 52k)
Montana Montana (PDF) (31pp, 2.3 MB) Letter (PDF) (2pp, 45k)  
Nebraska Nebraska (PDF) (2pp, 53k) Letter (PDF) (2pp, 50k)  
Nevada Nevada (PDF) (6pp, 467k) Letter (PDF) (2pp, 604k) Letter (PDF) (2pp, 60k)
New Hampshire New Hampshire (PDF) (3pp, 228k) Letter (PDF) (2pp, 689k)  
New Jersey New Jersey (PDF) (34pp, 4.0 MB) Letter (PDF) (2pp, 144k)  
New Mexico New Mexico (PDF) (1pg, 210k)
New Mexico - Albuquerque (PDF) (2pp, 68k)
Letter (PDF) (3pp, 780k)  
New York New York (PDF) (8pp, 1.7 MB) Letter (PDF) (2pp, 167k)  
North Carolina North Carolina (PDF) (36pp, 14.5 MB) Letter (PDF) (2pp, 99k)  
North Dakota North Dakota (PDF) (4pp, 91k) Letter (PDF) (2pp, 42k)  
Northern Mariana Islands Letter (PDF) (2pp, 597k)  
Ohio Ohio (PDF) (180pp, 19.6 MB) Letter (PDF) (3pp, 518k)
Canton/Cleveland TSD (PDF) (59pp, 919k)
Cincinnati TSD (PDF) (35pp, 1.9 MB)
Letter (PDF) (14pp, 2.6 MB)
Oklahoma Oklahoma (PDF) (1pg, 184k) Letter (PDF) (3pp, 713k)  
Oregon Oregon (PDF) (1pg, 210k) Letter (PDF) (2pp, 1.4 MB)  
Pennsylvania Pennsylvania (PDF) (117pp, 16.4 MB)
Pennsylvania, revised (PDF) (14 pp, 164 KB)
Letter (PDF) (3pp, 1.3 MB)
PA TSD (PDF) (177pp, 9.1 MB)
Letter (PDF) (86pp, 7.5 MB)
Puerto Rico Puerto Rico (PDF) (10pp, 468k) Letter (PDF) (2pp, 167k)
PR TSD (PDF) (5pp, 458k)
Rhode Island Rhode Island (PDF) (3pp, 451k) Letter (PDF) (2pp, 685k)  
South Carolina South Carolina (PDF) (2pp, 270k) Letter (PDF) (3pp, 101k) Letter (PDF) (1pp, 63k)
South Dakota South Dakota (PDF) (13pp, 1.1 MB) Letter (PDF) (2pp, 45k)  
Tennessee Tennessee (PDF) (1pg, 250k) Letter (PDF) (3pp, 110k)
TN TSD (PDF) (19pp, 604k)
Letter (PDF) (1pp, 180k)
Texas Texas (PDF) (10pp, 2.4 MB) Letter (PDF) (3pp, 760k) Letter (PDF) (5pp, 524k)
Letter (PDF) (2pp, 412k)
Utah Utah (PDF) (2pp, 44k) Letter (PDF) (2pp, 44k)  
Vermont Vermont (PDF) (2pp, 112k) Letter (PDF) (2pp, 687k)  
Virgin Islands Virgin Islands (PDF) (1pg, 440k) Letter (PDF) (2pp, 165k)
VI TSD (PDF) (4pp, 254k)
Virginia Virginia (PDF) (14pp, 2.1 MB) Letter (PDF) (2pp, 1.2 MB)  
Washington Washington (PDF) (26pp, 1.8 MB) Letter (PDF) (2pp, 1.4 MB)  
West Virginia West Virginia (PDF) (3pp, 1.7 MB)
West Virginia, revised (PDF) (6 pp, 1.4 MB)
Letter (PDF) (2pp, 1.2 MB)  
Wisconsin Wisconsin (PDF) (6pp, 934k) Letter (PDF) (2pp, 650k)  
Wyoming Wyoming (PDF) (4pp, 1.4 MB) Letter (PDF) (2pp, 42k)  


Jump to main content.