A July 20, 2010 letter to EPA requesting aa dditional 45-Day extension of public comment period for the Advance
Notice of Proposed Rulemaking on Polychlorinated Biphenyls: Reassessment of Use Authorizations (75 Fed. Reg. 17645 (Apr. 7, 2010), Docket ID No. EPA-HQ-OPPT-2009-0757.