Approval and Promulgation of Air Quality Implementation Plans; Illinois and Indiana; Finding of Attainment for 1-Hour Ozone for the Chicago-Gary-Lake County, IL-IN Area
air-emissions · Rule · Published 2008-12-30 · Effective 2009-01-29 · IL · 73 FR 79652
Document
Document number
E8-30812
Federal Register citation
73 FR 79652
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2008-12-30
Effective date
2009-01-29
State
IL
EPA docket
EPA-R05-OAR-2007-1044, EPA-R05-OAR-2007-1133
Abstract
EPA is approving a January 30, 2007, request from the Illinois Environmental Protection Agency (IEPA) that EPA find that the Illinois portion of the Chicago-Gary-Lake County, Illinois-Indiana (IL-IN) nonattainment area, has attained the revoked 1-hour ozone National Ambient Air Quality Standard (NAAQS). EPA is also approving an October 25, 2007, request from the Indiana Department of Environmental Management (IDEM) that EPA find that the Indiana portion of the Chicago-Gary-Lake County, IL-IN nonattainment area, has attained the revoked 1-hour ozone NAAQS. EPA proposed to approve both requests on July 7, 2008. We received three comments on our proposed rulemaking, which are addressed below.