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The existing Air Emissions Reporting Requirements (AERR) in 40 CFR part 51 include a reporting threshold of 5 tons per year for lead (Pb). This action brings that threshold into line with the requirements of the revised Pb national standards (NAAQS) and its associated monitoring requirements of 0.5 tons per year. The EPA finalized technical corrections to appendix A of subpart A of the AERR final rule to make it consistent with the final implementation of the Emission Inventory System (EIS), which is used to collect the data required as part of the AERR. This rule affects state, local, and tribal agencies that are responsible for submitting data to EIS by requiring them to collect and submit data from additional Pb sources based on the lower emissions reporting threshold. This action also clarifies for these data submitters the technical elements of their submissions to the EIS by reducing inconsistencies with other features of Appendix A. This action was published on February 19, 2015 (80 FR 8787).