[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: 40CFR57.504]

[Page 149]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 57--PRIMARY NONFERROUS SMELTER ORDERS--Table of Contents
 
           Subpart E--Fugitive Emission Evaluation and Control
 
Sec. 57.504  Continuing evaluation of fugitive emission control measures.

    Each NSO shall require the smelter owner to conduct an active 
program to continuously review the effectiveness of the fugitive 
emission control measures implemented pursuant to Sec. 57.503 in 
maintaining the NAAQS and, if such measures are not sufficiently 
effective, to evaluate what additional measures should be taken to 
assure that the NAAQS will be maintained with a reasonably degree of 
reliability. The NSO shall also require submission of a semi-annual 
report to the issuing Agency detailing the results of this review and 
evaluation. Such a report may be submitted as part of the report 
required under Sec. 57.402(f).