On August 28, 2009 (74 FR 44676), EPA published a proposed rule entitled ‘‘Effluent Limitation Guidelines and New Source Performance Standards for the Airport Deicing Category; Proposed Rule.’’ Written comments on the proposed rulemaking were to be submitted to EPA on or before December 28, 2009 (a 120-day public comment period). Since publication, the Agency has received several requests for additional time to submit comments. EPA is extending the public comment period until February 26, 2010.