Full Withdrawal of Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; City of Philadelphia; Control of Emissions From Existing Sewage Sludge Incineration Units

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Due to the receipt of an adverse comment, the Environmental Protection Agency (EPA) is withdrawing the October 26, 2017 direct final rule (DFR) that approved a negative declaration submitted by the City of Philadelphia. The negative declaration certified that no existing sewage sludge incineration (SSI) units exist within the City of Philadelphia. EPA stated in the direct final rule that if EPA received adverse comments by November 27, 2017, the rule would be withdrawn and not take effect. EPA subsequently received an adverse comment. This withdrawal action is being taken under sections 129 and 111(d) of the Clean Air Act.