[Code of Federal Regulations] [Title 40, Volume 26] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR413.20] [Page 210] TITLE 40-PROTECTION OF ENVIRONMENT CHAPTER I-ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 413-ELECTROPLATING POINT SOURCE CATEGORY--Table of Contents Subpart B-Electroplating of Precious Metals Subcategory Sec. 413.20 Applicability: Description of the electroplating of precious metals subcategory. The provisions of this subpart apply to discharges of process wastewaters resulting from the process in which a ferrous or nonferrous basis material is plated with gold, silver, iridium, palladium, platinum, rhodium, rutheniun, or any combination of these.