[Code of Federal Regulations]

[Title 40, Volume 28]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR421.20]



[Page 460]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 421_NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY--Table 

of Contents

 

             Subpart B_Primary Aluminum Smelting Subcategory

 

Sec.  421.20  Applicability: description of the primary aluminum smelting 

subcategory.





    The provisions of this subpart are applicable to discharges 

resulting from the production of aluminum from alumina in the Hall-

Heroult process.