2060-AP80 201004 Unified Agenda of Federal Regulatory and Deregulatory Actions 2060 Air and Radiation AR 2000 Environmental Protection Agency EPA Reconsideration of the Prevention of Significant Deterioration and Nonattainment New Source Review NSR: Aggregation This action follows RIN 2060-AP49, in which EPA developed and issued a final rule that addressed when a source must combine (i.e., "aggregate") nominally separate physical and operational changes for the purpose of determining whether they are a single change and subject to review under the New Source Review (NSR) program. Following promulgation of the NSR Aggregation final rule on January 15, 2009, the Natural Resources Defense Council (NRDC) submitted a petition for reconsideration as provided for in Clean Air Act (CAA) section 307(d)(7)(B). In response to NRDC's petition, EPA has both announced the convening of a reconsideration proceeding and administratively stayed the effective date of the rule until May 18, 2010, to allow time to conduct the reconsideration. Under this RIN, we will take comment on a range of legal and policy issues related to the Aggregation rule and complete any revisions of the rule that become necessary as a result of the reconsideration process. Substantive, Nonsignificant Previously Published in The Unified Agenda Proposed Rule Stage No No 40 CFR 51.165 40 CFR 51.166 40 CFR 52.21 42 USC 7401 et seq Statutory Other 05/18/2010 Final - Stay Extension Rule - Stay ends 05/18/10. No NPRM 04/00/2010 Final Action -- Additional Stay 05/00/2010 Final Action 11/00/2010 SAN No. 4793.2; Split from RIN 2060-AP49. Split from RIN 2060-AL75; EPA Docket information: EPA-HQ-OAR-2003-0064. No No Federal Local State Tribal No www.epa.gov/nsr/ No No Dave Svendsgaard 2060 Air and Radiation AR 919 541-2380 919 541-5509 svendsgaard.dave@epamail.epa.gov C504-03, Research Triangle Park NC 27711 Raj Rao 2060 Air and Radiation AR 919 541-5344 919 541-5509 rao.raj@epamail.epa.gov C504-03, Research Triangle Park NC 27711