[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: 40CFR427.10] [Page 49] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 427_ASBESTOS MANUFACTURING POINT SOURCE CATEGORY --Table of Contents Subpart A_Asbestos-Cement Pipe Subcategory Sec. 427.10 Applicability; description of the asbestos-cement pipe subcategory. The provisions of this subpart are applicable to discharges resulting from the process in which asbestos. Portland cement, silica and other ingredients are used in the manufacturing of asbestos-cement pipe.