Of Arizona (comprising of Pinal County, Pima County, Maricopa County, and rest of the state), the four agencies stated that they lack authority under state law to regulate GHGs.  
   *	Pinal County informed us by letter to EPA dated August 2, 2010, and by verbal communications that, based on state law, prevailing rules under the existing, approved title V program do not regulate GHGs.  
   *	Pima County staff informed us through verbal communications (with Richard Grimaldi on Nov. 30) that such authority must be granted by the state before the agency can regulate GHGs under the title V program.  
   *	Maricopa County staff also informed us through verbal communications (with Jo Crumbaker on Nov. 30) that such authority must be granted by the state before the agency can regulate GHGs under the title V program.  
   *	ADEQ informed us by letter to EPA dated August 27, 2010, that "ADEQ does not have the authority to regulate GHGs under the PSD or Title V permitting programs."  They stated that "Arizona law would have to be amended before ADEQ could regulate GHGs under its PSD or Title V programs."

Of Nevada (in portions of Clark County and Washoe County only), the two agencies stated that they lack authority to regulate GHGs (via written correspondence).  
   *	Clark County stated in their letter submitted to EPA dated August 2, 2010, that the existing, approved title V program is not sufficient to provide authority to issue title V permits to GHG sources. 
   *	Washoe County informed us in an e-mail dated December 2, 2010, that their rules do not define "Title V applicability in a way that would include greenhouse gas sources as required in the Tailoring Rule.  Therefore, [they] will need to implement a modification of the Title V applicability rules to include greenhouse gas sources."  

Of Nevada (rest of state, excluding Clark County and Washoe County):  
*	NDEP stated that the existing, approved title V program has authority to regulate GHGs only at the 100 tpy threshold, but not in a manner consistent with the Tailoring Rule (via verbal communications with Greg Remer on Dec. 10).
