[Code of Federal Regulations]
[Title 40, Volume 8]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR61.31]

[Page 41-42]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 61_NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS
--Table of Contents
 
           Subpart C_National Emission Standard for Beryllium
 
Sec. 61.31  Definitions.

    Terms used in this subpart are defined in the act, in subpart A of 
this part, or in this section as follows:
    (a) Beryllium means the element beryllium. Where weights or 
concentrations are specified, such weights or concentrations apply to 
beryllium only, excluding the weight or concentration of any associated 
elements.
    (b) Extraction plant means a facility chemically processing 
beryllium ore to beryllium metal, alloy, or oxide, or performing any of 
the intermediate steps in these processes.
    (c) Beryllium ore means any naturally occurring material mined or 
gathered for its beryllium content.
    (d) Machine shop means a facility performing cutting, grinding, 
turning, honing, milling, deburring, lapping, electrochemical machining, 
etching, or other similar operations.
    (e) Ceramic plant means a manufacturing plant producing ceramic 
items.

[[Page 42]]

    (f) Foundry means a facility engaged in the melting or casting of 
beryllium metal or alloy.
    (g) Beryllium-containing waste means material contaminated with 
beryllium and/or beryllium compounds used or generated during any 
process or operation performed by a source subject to this subpart.
    (h) Incinerator means any furnace used in the process of burning 
waste for the primary purpose of reducing the volume of the waste by 
removing combustible matter.
    (i) Propellant means a fuel and oxidizer physically or chemically 
combined which undergoes combustion to provide rocket propulsion.
    (j) Beryllium alloy means any metal to which beryllium has been 
added in order to increase its beryllium content and which contains more 
than 0.1 percent beryllium by weight.
    (k) Propellant plant means any facility engaged in the mixing, 
casting, or machining of propellant.