[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: 40CFR93.151]

[Page 573]
 
                   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. 93.151  State implementation plan (SIP) revision.

    The Federal conformity rules under this subpart, in addition to any 
existing applicable State requirements, establish the conformity 
criteria and procedures necessary to meet the Act requirements until 
such time as the required conformity SIP revision is approved by EPA. A 
State's conformity provisions must contain criteria and procedures that 
are no less stringent than the requirements described in this subpart. A 
State may establish more stringent conformity criteria and procedures 
only if they apply equally to nonfederal as well as Federal entities. 
Following EPA approval of the State conformity provisions (or a portion 
thereof) in a revision to the applicable SIP, the approved (or approved 
portion of the) State criteria and procedures would govern conformity 
determinations and the Federal conformity regulations contained in this 
part would apply only for the portion, if any, of the State's conformity 
provisions that is not approved by EPA. In addition, any previously 
applicable SIP requirements relating to conformity remain enforceable 
until the State revises its SIP to specifically remove them from the SIP 
and that revision is approved by EPA.