Public Comment Period: 2024 Annual Report for EPA’s Data Requirements Rule to Demonstrate Attainment with the 2010 1-Hour SO2 NAAQS


In accordance with EPA’s Data Requirements Rule (DRR) as found in 40 CFR 51 Subpart BB, the North Carolina Department of Environmental Quality, Division of Air Quality (DAQ) has prepared this annual report to demonstrate North Carolina’s ongoing attainment status with the 2010 sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS) relative to the four facilities for which attainment is based on air quality modeling. 

40 CFR §51.1205 states in part:

For any area where modeling of actual SO2 emissions serve as the basis for designating such area as attainment for the 2010 SO2 NAAQS, the air agency shall submit an annual report to the EPA Regional Administrator by July 1 of each year, either as a stand-alone document made available for public inspection, or as an appendix to its Annual Monitoring Network Plan (also due on July 1 each year under 40 CFR 58.10), that documents the annual SO2 emissions of each applicable source in each such area and provides an assessment of the cause of any emissions increase from the previous year. The first report for each such area is due by July 1 of the calendar year after the effective date of the area's initial designation.

View 2024 DDR Annual Report

A copy of this report is available for public inspection online using the link above. The report is also available for public inspection at 217 West Jones Street, Raleigh, NC 27603.

The public is invited to inspect this report and provide public comment. Comments will be accepted until Thursday, June 27, 2024, at 5 p.m. Comments may be made via either of the following methods: 

  • Email to with "2024 DRR Annual Report" in the subject line
  • Mail post to Brian Phillips, Division of Air Quality, 1641 Mail Service Center, Raleigh, NC 27699-1641.