[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: 40CFR418.60] [Page 351] TITLE 40-PROTECTION OF ENVIRONMENT CHAPTER I-ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 418-FERTILIZER MANUFACTURING POINT SOURCE CATEGORY--Table of Contents Subpart F-Ammonium Sulfate Production Subcategory Sec. 418.60 Applicability; description of the ammonium sulfate production subcategory. Source: 40 FR 2652, Jan. 14, 1975, unless otherwise noted. The provisions of this subpart apply to discharges resulting from the production of ammonium sulfate by the synthetic process and by coke oven by-product recovery. The provisions of this subpart do not apply to ammonium sulfate produced as a by-product of caprolactam production.