Approval and Promulgation of Air Quality Implementation Plans; Maryland; Nonattainment New Source Review Requirements for the 2008 8-Hour Ozone Standard; Withdrawal of Direct Final Rule

Résumé

Due to the receipt of an adverse comment, the Environmental Protection Agency (EPA) is withdrawing the September 29, 2017 direct final rule (DFR) that approved a revision to the Maryland state implementation plan (SIP). The revision was in response to EPA's February 3, 2017 Findings of Failure to Submit for various requirements relating to the 2008 8-hour ozone national ambient air quality standards (NAAQS). This SIP revision was specific to nonattainment new source review (NNSR) requirements. EPA stated in the direct final rule that if EPA received adverse comments by October 30, 2017, the rule would be withdrawn and not take effect. EPA subsequently received an adverse comment. EPA will address the comment received in a subsequent final action based upon the proposed action also published on September 29, 2017. EPA will not institute a second comment period on this action. This withdrawal action is being taken under section 110 of the Clean Air Act.