[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: 40CFR467.41]

[Page 637]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 467_ALUMINUM FORMING POINT SOURCE CATEGORY--Table of Contents
 
                      Subpart D_Forging Subcategory
 
Sec. 467.41  Specialized definitions.

    For the purpose of this subpart:
    (a) The ``core'' of the forging subcategory shall include forging, 
artificial aging, annealing, degreasing, and sawing.
    (b) The term ``ancillary operation'' shall mean any operation not 
previously included in the core, performed on-site, following or 
preceding the forging operation. The ancillary operations shall include 
forging air pollution scrubbers, solution heat treatment, and cleaning 
or etching.