Approval and Promulgation of Air Quality Implementation Plans; Indiana; Carbon Monoxide Maintenance Plan Updates; Limited Maintenance Plan
air-emissions · Rule · Published 2009-10-15 · Effective 2009-12-14 · IN · 74 FR 52891
Document
Document number
E9-24695
Federal Register citation
74 FR 52891
CFR reference
40 CFR 52
Type
Rule
Action
Direct final rule.
Category
air-emissions
Publication date
2009-10-15
Effective date
2009-12-14
State
IN
EPA docket
EPA-R05-OAR-2009-0120
Abstract
The Indiana Department of Environmental Management (IDEM) submitted Carbon Monoxide (CO) "Limited Maintenance Plan" updates for Lake and Marion Counties on January 12, 2009. These Limited Maintenance Plans demonstrate continued attainment of the CO National Ambient Air Quality Standard (NAAQS) for Lake and Marion counties for an additional ten years. EPA is, therefore, approving it into Indiana's State Implementation Plan (SIP).