[Code of Federal Regulations] [Title 40, Volume 28] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR439.50] [Page 409] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 439_PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY --Table of Contents Subpart E_Research Sec. 439.50 Applicability. This subpart applies to discharges of process wastewater resulting from pharmaceutical research. [63 FR 50436, Sept. 21, 1998]