[Code of Federal Regulations]
[Title 40, Volume 17]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR93.157]

[Page 579]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 93--DETERMINING CONFORMITY OF FEDERAL ACTIONS TO STATE OR FEDERAL IMPLEMENTATION PLANS--Table of Contents
 
Subpart B--Determining Conformity of General Federal Actions to State or 
                      Federal Implementation Plans
 
Sec. 93.157  Frequency of conformity determinations.

    (a) The conformity status of a Federal action automatically lapses 5 
years from the date a final conformity determination is reported under 
Sec. 93.155, unless the Federal action has been completed or a 
continuous program has been commenced to implement that Federal action 
within a reasonable time.
    (b) Ongoing Federal activities at a given site showing continuous 
progress are not new actions and do not require periodic 
redeterminations so long as such activities are within the scope of the 
final conformity determination reported under Sec. 93.155.
    (c) If, after the conformity determination is made, the Federal 
action is changed so that there is an increase in the total of direct 
and indirect emissions, above the levels in Sec. 93.153(b), a new 
conformity determination is required.

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