Air Plan Approval; Indiana; Second Maintenance Plan for 1997 Ozone NAAQS
air-emissions · Rule · Published 2019-12-13 · Effective 2020-01-13 · IN · 84 FR 68049
Document
Document number
2019-26686
Federal Register citation
84 FR 68049
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2019-12-13
Effective date
2020-01-13
State
IN
EPA docket
EPA-R05-OAR-2019-0377
Abstract
Pursuant to the Clean Air Act (CAA), the Environmental Protection Agency (EPA) is approving as a revision to the Indiana State Implementation Plan (SIP), the State's plan for maintaining the 1997 ozone National Ambient Air Quality Standards (NAAQS) through the end of the second 10-year maintenance period. On June 20, 2019, the Indiana Department of Environmental Management submitted the State's plan for maintaining the 1997 ozone NAAQS for the Indianapolis, La Porte County, and South Bend-Elkhart areas and the Indiana portions of the Chicago- Gary-Lake County, IL-IN (Chicago), Cincinnati-Hamilton, OH-KY-IN (Cincinnati), and Louisville, KY-IN (Louisville) multi-state areas. EPA proposed to approve the submission on September 25, 2019, and received no comments. This action makes certain commitments related to maintenance of the 1997 ozone NAAQS in these areas federally enforceable as part of the Indiana SIP.