[Code of Federal Regulations]
[Title 40, Volume 5]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR57.108]

[Page 135]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 57--PRIMARY NONFERROUS SMELTER ORDERS--Table of Contents
 
                           Subpart A--General
 
Sec. 57.108  Comparable existing SIP provisions.

    Notwithstanding any other provision of this part, an NSO may contain 
provisions to which the affected smelter is subject under the applicable 
EPA-approved State Implementation Plan (SIP) for sulfur dioxide in lieu 
of the corresponding provisions which would otherwise be required under 
this part if the Administrator determines that those SIP provisions are 
substantially equivalent to the corresponding NSO provisions which would 
otherwise be required, and if the Administrator determines that the 
smelter is in substantial compliance with those SIP provisions. For the 
purposes of this section, provisions to which the affected smelter is 
subject under the applicable EPA-approved State Implementation Plan are 
those which became effective before the smelter owner applied for the 
NSO.