[Code of Federal Regulations] [Title 40, Volume 2] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR51.25] [Page 132] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 51--REQUIREMENTS FOR PREPARATION, ADOPTION, AND SUBMITTAL OF IMPLEMENTATION PLANS--Table of Contents Subpart A--Emission Inventory Reporting Requirements Sec. 51.25 What geographic area must my State's inventory cover? Because of the regional nature of these pollutants, your State's inventory must be statewide, regardless of an area's attainment status.