[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] 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.