Approval and Promulgation of Air Quality Implementation Plans; Indiana; Lead Ambient Air Quality Standards
air-emissions · Rule · Published 2012-03-01 · Effective 2012-04-30 · IN · 77 FR 12482
Document
Document number
2012-4970
Federal Register citation
77 FR 12482
CFR reference
40 CFR 52
Type
Rule
Action
Direct final rule.
Category
air-emissions
Publication date
2012-03-01
Effective date
2012-04-30
State
IN
EPA docket
EPA-R05-OAR-2010-0100
Abstract
EPA is approving a request submitted by the Indiana Department of Environmental Management (IDEM) on November 24, 2010, to revise the Indiana State Implementation Plan (SIP) for lead (Pb) under the Clean Air Act (CAA). This submittal incorporates the National Ambient Air Quality Standards (NAAQS) for Pb promulgated by EPA in 2008.