Environmental Protection Agency Docket EPA-R04-OAR-2017-0395 Proposed Rule

2018-10688: Air Plan Approvals; Tennessee: Revisions to Ambient Air Quality Standards

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Summary

The Environmental Protection Agency (EPA) is proposing to approve a portion of a revision to the Tennessee State Implementation Plan (SIP) submitted on June 25, 2008, by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), on behalf of the Chattanooga/Hamilton County Air Pollution Control Bureau (Chattanooga/Hamilton County). The SIP submittal includes changes to Chattanooga/Hamilton County's air quality rules that, among other things, modify several ambient air standards. The portion of the SIP revision that EPA is approving is consistent with the requirements of the Clean Air Act (CAA or Act). EPA will act on the other portions of the June 25, 2008, submittal in a separate action.

The agency’s own summary, as published.

What this changes

Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.

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