Air Plan Approval; Indiana; Monitoring Requirements
air-emissions · Rule · Published 2021-06-25 · Effective 2021-07-26 · IN · 86 FR 33525
Document
Document number
2021-13471
Federal Register citation
86 FR 33525
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2021-06-25
Effective date
2021-07-26
State
IN
EPA docket
EPA-R05-OAR-2020-0386
Abstract
The Environmental Protection Agency (EPA) is approving, under the Clean Air Act (CAA), a revision to Indiana's State Implementation Plan (SIP) to address changes to its air emissions monitoring rules for Portland cement plants. Indiana revised its rules for Portland cement plants to update the monitoring of particulate matter (PM) emissions to allow an additional monitoring option. This additional monitoring option is consistent with EPA's recent revisions to Federal requirements for Portland cement plants. EPA proposed to approve this action on March 25, 2021 and received no comments.