The Department of Environmental Quality seeks public comment on proposed amendments to LAC 33:III.111, 2123, and 2143 , Control Technology Guidelines; and LAC 33:III.501, Statutory Exemption for Air Permits. The first set of amendments reflect changes made to the lithographic printing materials and letterpress printing materials Control Technology Guidelines (CTG) and the flexible package printing materials CTG that were published in the Federal Register. The exemptions apply to any source for which facility-wide potential emissions are less than 5 tons per year for each of any regulated air pollutant as defined by the CAA, less than 15 tons per year emitted of all such defined pollutants combined, and less than the minimum emission rate for each toxic air pollutant established pursuant to R.S. 30:2060, unless such source is required to obtain a permit pursuant to the CAA. Comments are due February 3, 2009. http://www.doa.la.gov/osr/reg/0812/0812.doc pp. 2707-14.