Air Plan Approval; Indiana; Indiana NOX Emissions Monitoring
air-emissions · Rule · Published 2026-05-14 · Effective 2026-06-15 · IN · 91 FR 27214
Document
Document number
2026-09612
Federal Register citation
91 FR 27214
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2026-05-14
Effective date
2026-06-15
State
IN
EPA docket
EPA-R05-OAR-2021-0761
Abstract
The Environmental Protection Agency (EPA) is approving under the Clean Air Act (CAA) a request from the Indiana Department of Environmental Management (IDEM) to revise the Indiana State Implementation Plan (SIP) to incorporate revisions to nitrogen oxides (NO<INF>X</INF>) emissions monitoring, reporting, and recordkeeping requirements for new and existing large non-Electric Generating Units (non-EGUs) affected by the NO<INF>X</INF> SIP Call. This SIP revision would approve monitoring, reporting, and recordkeeping requirements that are permissible as alternatives under Federal rules for these sources for purposes of the NO<INF>X</INF> SIP Call.