[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR436.190] [Page 359] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 436--MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY--Table of Contents Subpart S--Frasch Sulfur Subcategory Sec. 436.190 Applicability; description of the Frasch sulfur subcategory. The provisions of this subpart are applicable to the processing of sulfur on shore and in marshes and estuaries by the Frasch process. Not covered are sulfur refining operations that are not performed at the mining and collection site.