The Department of Environmental Quality (DEQ) will hold a public hearing on proposed rule changes to amend the applicability rule for Plant Site Emission Limits (PSELs). The PSEL Rule sets limits on emissions of specified criteria air pollutants. The primary purpose of establishing a PSEL is to assure compliance with ambient air quality standards. A cross-reference error in the rule added two lists of chemical substances, some of which are not air pollutants, to the substances regulated by the PSEL rule. The proposed rule revisions will clarify the PSEL rule by exempting substances regulated by the Accidental Release Prevention Rule and Early Reduction High Risk Pollutant rules. The rule change would be consistent with DEQ's historical interpretation and implementation of the PSEL program. The hearing will be held May 22, 2008. Comments are due May 29, 2008. http://arcweb.sos.state.or.us/rules/0508_Bulletin/0508_rulemaking_bulletin.html.