Redesignation Request and Maintenance Plan for the Hillsborough-Polk County SO2 Nonattainment and Unclassifiable Areas

Redesignation Request and Maintenance Plan for the Hillsborough-Polk County Sulfur Dioxide (SO₂) Nonattainment and Unclassifiable Areas

On October 9, 2019, the Florida Department of Environmental Protection (DEP) submitted a proposed State Implementation Plan (SIP) revision, under the Clean Air Act, to the United States Environmental Protection Agency (EPA). DEP's submittal consists of a request to the EPA to redesignate the portions of Hillsborough and Polk counties that are designated as "nonattainment" and "unclassifiable," with respect to the 2010 revised SO₂ National Ambient Air Quality Standard (NAAQS), to "attainment;" and a request to approve an associated maintenance plan that will ensure the continued attainment of the 2010 SO₂ NAAQS in the area. The EPA approved the requests on February 20, 2020, with an effective approval date of March 23, 2020.

Important Documents

• Final EPA approval, published in the Federal Register on February 20, 2020 and effective March 23, 2020.
• Final Submittal Cover Letter, dated October 9, 2019
• Final Submittal, dated October 9, 2019
• Notice of Hearing, published February 15, 2019, in the Florida Administrative Register
• DEP Pre-Hearing Cover Letter to EPA, dated February 15, 2019
• Pre-Hearing Submittal, dated February 15, 2019