Document ID: EPA-HQ-OAR-2007-0225-0136
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2007-08-21T04:00Z

"Johansson, Robert" <Robert_C._Johansson@omb.eop.gov> 

06/26/2007 03:53 PM

	

To

Marjorie Jones/RTP/USEPA/US@EPA

cc

Ron Evans/RTP/USEPA/US@EPA, "Schwab, Margo" <Margo_Schwab@omb.eop.gov>,
"Frey, Patrick J." <Patrick_J._Frey@omb.eop.gov>

Subject

RE: PRB new language, in context for your review

Hi Margie,

Weren't you going to mention that higher PRB and/or CanMex contributions

would make attainment that much more difficult (i.e., fewer available

anthropogenic contributions to control in order to meet alternative

standards). This would make attainment more costly and uncertain and

would make achieving benefits more uncertain to that extent.  

I do not agree that PRB has no role in the RIA estimates.

Rob

________________________________________________

Robert Johansson, Ph.D.

OMB/OIRA/NREA

725 17th St. NW, Room 10202

Washington, DC 20503

(P) 202-395-7873

(F) 202-395-7285

(E) RJohansson@omb.eop.gov