Approval and Promulgation of Air Quality Implementation Plans; Indiana; Redesignation of Lake and Porter Counties to Attainment of the Fine Particulate Matter Standard
air-emissions · Rule · Published 2011-12-07 · Effective 2012-02-06 · IN · 76 FR 76302
Document
Document number
2011-31131
Federal Register citation
76 FR 76302
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2011-12-07
Effective date
2012-02-06
State
IN
EPA docket
EPA-R05-OAR-2008-0395
Abstract
EPA is taking several related actions affecting Lake and Porter Counties and the State of Indiana for the 1997 annual fine particulate matter (PM<INF>2.5</INF>) National Ambient Air Quality Standard (NAAQS or standard). EPA is approving a request from the State of Indiana for the redesignation of Lake and Porter Counties to attainment of the 1997 annual PM<INF>2.5</INF> standard. EPA is approving, as a revision to the Indiana State Implementation Plan (SIP), the State's plan for maintaining the 1997 annual PM<INF>2.5</INF> standard in the Chicago-Gary-Lake County, Illinois- Indiana (IL-IN) PM<INF>2.5</INF> nonattainment area (Greater Chicago nonattainment area) through 2025. EPA is also approving Indiana's 2025 Nitrogen Oxides (NO<INF>X</INF>) and PM<INF>2.5</INF> Motor Vehicle Emission Budgets (MVEBs). Finally, EPA is approving Indiana's 2005 NO<INF>X</INF>, primary PM<INF>2.5</INF>, and sulfur dioxide (SO<INF>2</INF>) emissions inventories for Lake and Porter Counties.