The Department of Environment and Natural Resources proposed to amend 15A N.C. Admin. Code §02D.0544, incorporating fine particulate matter as a NAAQS pollutant. The comment period ends October 15, 2010, and the proposed effective date is January 2, 2011. http://www.ncoah.com/rules/register/Volume25Issue4August162010.pdf pp. 407-24.