The South Coast Air Quality Management District will hold a public hearing on September 5, 2008, to discuss proposed amendments to rule 1146, Emissions of Oxides of Nitrogen from Industrial, Institutional, and Commercial Boilers, Steam Generators, and Process Heaters. Comments are due August 26, 2008. http://www.aqmd.gov/pub_edu/nph_1146_Sept_5_08.html.