[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: 40CFR421.16] [Page 460] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 421_NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY--Table of Contents Subpart A_Bauxite Refining Subcategory Sec. 421.16 Pretreatment standards for new sources. Any new sources subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403. [50 FR 38342, Sept. 20, 1985]