[Code of Federal Regulations] [Title 40, Volume 29] [Revised as of July 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR439.31] [Page 404] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 439_PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY --Table of Contents Subpart C_Chemical Synthesis Products Sec. 439.31 Special definitions. For the purpose of this subpart: (a) Chemical synthesis means using one or a series of chemical reactions in the manufacturing process of a specified product. (b) Product means any pharmaceutical product manufactured by chemical synthesis. [68 FR 12273, Mar. 13, 2003]