Air Plan Approval; Indiana; Air Quality Standards Update for the 2015 Ozone Standard
air-emissions · Rule · Published 2018-07-31 · Effective 2018-08-30 · IN · 83 FR 36751
Document
Document number
2018-16247
Federal Register citation
83 FR 36751
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2018-07-31
Effective date
2018-08-30
State
IN
EPA docket
EPA-R05-OAR-2017-0535
Abstract
The Environmental Protection Agency (EPA) is approving a September 7, 2017, request by the Indiana Department of Environmental Management (IDEM) to revise the Indiana state implementation plan (SIP) for ozone. IDEM revised its ozone standard in order to be consistent with EPA's 2015 revisions to the 8-hour national ambient air quality standards (NAAQS). IDEM also revised references to the monitoring test methods in its rules to be consistent with the current EPA test methods. EPA is also approving administrative revisions to regulations addressing other ambient air quality standards.