Document ID: EPA-HQ-OAR-2007-0225-0302
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2008-03-19T04:00Z

Ron Evans/RTP/USEPA/US

03/10/2008 04:05 PM

	

To

"King, Heidi R." <Heidi_R._King@omb.eop.gov>

cc

Al McGartland/DC/USEPA/US@EPA, Cynthia Morgan/DC/USEPA/US@EPA, Elizabeth
Kopits/DC/USEPA/US@EPA, Janet Cakir/RTP/USEPA/US@EPA, Lydia
Wegman/RTP/USEPA/US@EPA, Nathalie Simon/DC/USEPA/US@EPA, "Johansson,
Robert" <Robert_C._Johansson@omb.eop.gov>, Tricia
Crabtree/RTP/USEPA/US@EPA, Jim Ketcham-Colwill, brenner.rob@epa.gov,
darryl weatherhead, walton.tom@epa.gov, Charles
Fulcher/RTP/USEPA/US@EPA, Janet Cakir/RTP/USEPA/US@EPA

Subject

revision to presentation of cost results in chapter 5

Heidi, 

In consultation with OPEI, we have revised the presentation of the total
costs in chapter 5.   What you will find is an additional paragraph (and
footnote to table 5.1) we have put together to point out that our
current approach relies on technological change to keep costs from
becoming too expensive.   The paragraph points out that an alternative
storyline might hypothesize a much less optimistic technological change
path, such that emissions reductions technologies for industrial sources
would be more expensive or would be unavailable.  We will be happy to
discuss this new wording when we talk to you about your questions on the
cost section.

Ron Evans

Leader, Air Benefit & Cost Group

HEID/OAQPS/OAR/EPA

Mail Drop C-439-02

919-541-5488

919-541-0839 fax

We do one thing: overwhelm people's impossible expectations.