[Code of Federal Regulations]
[Title 40, Volume 15]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR65.10]

[Page 38]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 65_CONSOLIDATED FEDERAL AIR RULE--Table of Contents
 
                      Subpart A_General Provisions
 
Sec.  65.10  State authority.

    (a) The provisions of this part shall not be construed in any manner 
to preclude any State or political subdivision thereof from adopting and 
enforcing any emission standard or limitation applicable to a regulated 
source, provided that such standard, limitation, prohibition, or other 
regulation is not less stringent than the standard applicable to such a 
regulated source.
    (b) The provisions of this part shall not be construed in any manner 
to preclude any State or political subdivision thereof from requiring 
the owner or operator of a regulated source to obtain permits, licenses, 
or approvals prior to initiating construction, modification, or 
operation of such a regulated source.