[Code of Federal Regulations] [Title 40, Volume 28] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR424.21] [Page 657] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 424_FERROALLOY MANUFACTURING POINT SOURCE CATEGORY--Table of Contents Subpart B_Covered Electric Furnaces and Other Smelting Operations With Wet Air Pollution Control Devices Subcategory Sec. 424.21 Specialized definitions. For the purpose of this subpart: (a) Except as provided below, the general definitions, abbreviations and methods of analysis set forth in part 401 of this chapter shall apply to this subpart. (b) The term Mwh shall mean megawatt hour(s) of electrical energy consumed in the smelting process (furnace power consumption).