[Code of Federal Regulations]

[Title 40, Volume 29]

[Revised as of July 1, 2005]

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

[CITE: 40CFR467.21]



[Page 626]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 467_ALUMINUM FORMING POINT SOURCE CATEGORY--Table of Contents

 

              Subpart B_Rolling With Emulsions Subcategory

 

Sec. 467.21  Specialized definitions.



    For the purpose of this subpart:

    (a) The ``core'' of the rolling with emulsions subcategory shall 

include rolling using emulsions, roll grinding, stationary casting, 

homogenizing, artificial aging, annealing, and sawing.

    (b) The term ``ancillary operation'' shall mean any operation not 

previously included in the core, performed on-site, following or 

preceding the rolling operation. The ancillary operations shall include 

direct chill casting, solution heat treatment, cleaning or etching, and 

degassing.