Data / Federal rules / 2026-09612

Air Plan Approval; Indiana; Indiana NOX Emissions Monitoring

The Environmental Protection Agency published this final rule in the Federal Register on May 14, 2026. It took effect on June 15, 2026.

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What the agency says

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.

Key facts

Document number: 2026-09612
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: May 14, 2026
Takes effect: June 15, 2026
Dates: This final rule is effective on June 15, 2026.
Docket: EPA-R05-OAR-2021-0761; FRL-12258-02-R5
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen oxides; Ozone; Particulate matter; Reporting and recordkeeping requirements; Sulfur oxides
Pages: 4

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on environmental protection · Rules on incorporation by reference · Published in May 2026

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.