Approval of Nebraska's Air Quality Implementation Plans; Nebraska Air Quality Regulations and State Operating Permit Programs

The Environmental Protection Agency (EPA) proposes to approve the State Implementation Plan (SIP) revisions submitted by the State of Nebraska. This proposed action will amend the SIP to include revisions to title 129 of the Nebraska Air Quality Regulations, chapter 5, ``Operating Permits--When Required''; chapter 9, ``General Operating Permits for Class I and II Sources''; chapter 22, ``Incinerators; Emission Standards''; Chapter 30, ``Open Fires''; and chapter 34 ``Emission Sources; Testing; Monitoring''. These revisions were requested by the Nebraska Department of Environmental Quality (NDEQ) in three submittals, submitted on May 1, 2003, November 8, 2011, and July 14, 2014. The May 1, 2003, submittal revised chapters 5 and 9, to address changes in regard to the permits- by-rule provisions of Title 129. The November 8, 2011, submittal allows for the issuance of multiple operating permits to major sources through revisions to chapter 5. In addition, revisions to chapters 22 and 30 encourage the use of air curtain incinerators over open burning; and changes to chapter 34 clarify the authority of NDEQ to order emission sources to do testing when NDEQ deems it necessary. The July 14, 2014, submittal further revises chapter 34, by updating the reference to allowable test methods for evaluating solid waste, changing the amount of time allowed to submit test results, and allowing NDEQ to approve a request for testing with less than 30 days notification. For additional information on the revisions to chapters 5, 9, 22, 30 and 34 see the detailed discussion table in the docket.