[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: 40CFR427.50] [Page 53] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 427_ASBESTOS MANUFACTURING POINT SOURCE CATEGORY --Table of Contents Subpart E_Asbestos Millboard Subcategory Sec. 427.50 Applicability; description of the asbestos millboard subcategory. The provisions of this subpart are applicable to discharges resulting from the process in which asbestos in combination with various other materials such as cement, starch, clay, lime, and mineral wool are used in the manufacture of asbestos millboard.