Air Plan Approval; South Carolina; Minor Source Permit Program Revisions
Key claim: EPA is proposing to approve South Carolina’s updates to its air-permit rules for smaller pollution sources, including how those sources are reviewed before they are built or modified.
Abstract
(Proposed Rule · Environmental Protection Agency) The U.S. Environmental Protection Agency (EPA or Agency) is proposing to approve changes to South Carolina’s State Implementation Plan (SIP) to revise regulations prescribing minor source permit program requirements, including minor new source review (NSR) requirements, in SIP revisions submitted by the State of South Carolina on October 1, 2007, July 18, 2011, August 8, 2014, April 24, 2020, and July 23, 2025. This action is being proposed pursuant to the Clean Air Act (CAA or Act).
[This finding represents 2 closely related documents issued 2026-08-19 (same source, same action). Related: fedreg:2026-16930]
Why this matters
Minor NSR SIP approvals set the ground rules for how states review permits for smaller air pollution sources before they are built or modified, directly affecting industrial siting timelines, compliance costs, and local air quality. South Carolina’s revisions are a routine but concrete example of EPA-state coordination under the Clean Air Act, and tracking these approvals helps show how minor source permitting is evolving across states.