North Carolina Clean Air Act Section 110(l) Noninterference Demonstration for the Opacity and Start-up Requirements for Air Curtain Burners


The “North Carolina Clean Air Act Section 110(l) Noninterference Demonstration for the Opacity and Start-up Requirements for Air Curtain Burners” was submitted to the United States Environmental Protection Agency (EPA) on April 11, 2017. The transmittal letter, narrative and attachments are available through the following links:

In a letter dated October 14, 2004, the Division of Air Quality (DAQ) submitted amendments to Chapter 15A North Carolina Administrative Code (NCAC) 02D .1904 for EPA to review and approve as part of the State Implementation Plan (SIP).  Air curtain burners (ACBs) are regulated for the control of open burning, and Rule 02D .1904 has been implemented since 1996. The amendment in paragraph (b)(8) of the Rule requires ACB facilities subject to federal regulations to comply with their corresponding federal requirements.  For non-federally affected facilities, the Rule changed the opacity requirement from 5% to 10% and the duration of the start-up period from 30 minutes to 45 minutes.  In this noninterference demonstration, the DAQ is concluding that relaxation of opacity and start-up requirements for ACBs will not interfere with the attainment of any applicable national ambient air quality standards.

Please direct any further questions or comments concerning this SIP submittal to Ms. Sushma Masemore at (919) 707-8700 or sushma.masemore@ncdenr.gov