[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: 40CFR405.40] [Page 61] TITLE 40-PROTECTION OF ENVIRONMENT CHAPTER I-ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 405-DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY--Table of Contents Subpart D-Butter Subcategory Sec. 405.40 Applicability; description of the butter subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of butter, either by churning or continuous process.