In this episode we discuss the various reporting layers that facilities encounter when preparing air emissions information for reporting. We also generally visit the growing importance of consistency across emissions reports. Common areas of possible inconsistency are discussed as is the role of state regulatory agencies in preparing emissions information on behalf of facilities (the NEI process). We also begin to discuss how electronic reporting systems within various states are evolving. Part 2 will continue the discussion and will wrap up with practical advice around addressing consistency in reporting.