Document ID: EPA-HQ-OAR-2009-0472-1568
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2009-10-14T04:00Z

FYI: Error in LD GHG Preamble           (9/30/09)

Tad Wysor 

to:

jcabaniss

09/30/2009 12:06 PM

Cc:

Robin Moran, Ed Nam, William Charmley

 

 

From:	Tad Wysor/AA/USEPA/US

	To:	jcabaniss@aiam.org

	Cc:	Robin Moran/AA/USEPA/US@EPA, Ed Nam/AA/USEPA/US@EPA, William
Charmley/AA/USEPA/US@EPA

	

Hi, John...some auto industry contacts called our attention to an error
in some graphs in our proposed GHG/CAFE preamble that we hope you will
pass on to your members.  We inadvertently used values including A/C
credits in generating the CO2 car and truck standard curves presented in
the Preamble, which made them inconsistent with the associated
parameters that were correctly presented in the Preamble. 

Specifically, the graphs in Figures I.D.3-3 and I.D.3-4 (pages 49474-75
in the September 28, 2009 Federal Register) and Figures III.B.2-1 and
III.B.2-2 (pages 49518-19) are slightly inaccurate.  The coefficients in
Tables III.B.2-1 and III.B.2-2 (pages 49516-17 in the preamble and
Section 86.1818-12 in the regulatory language are correct.    

Thanks.  We'll be looking forward to your comments on the proposed rule
in the coming weeks, at the hearings and in written form.  --Tad

Tad Wysor

EPA Office of Transportation and Air Quality

(734) 214-4332

	

FYI: Error in LD GHG Preamble               (9/30/09)

Tad Wysor 

to:

candary

09/30/2009 12:10 PM

Cc:

Robin Moran, Ed Nam, William Charmley

 

 

From:	Tad Wysor/AA/USEPA/US

	To:	candary@autoalliance.org

	Cc:	Robin Moran/AA/USEPA/US@EPA, Ed Nam/AA/USEPA/US@EPA, William
Charmley/AA/USEPA/US@EPA

	

Hello, Cass...some auto industry contacts called our attention to an
error in some graphs in our proposed GHG/CAFE preamble that we hope you
will pass on to your members.  We inadvertently used values including
A/C credits in generating the CO2 car and truck standard curves
presented in the Preamble, which made them inconsistent with the
associated parameters that were correctly presented in the Preamble. 

Specifically, the graphs in Figures I.D.3-3 and I.D.3-4 (pages 49474-75
in the September 28, 2009 Federal Register) and Figures III.B.2-1 and
III.B.2-2 (pages 49518-19) are slightly inaccurate.  The coefficients in
Tables III.B.2-1 and III.B.2-2 in the Preamble (pages 49516-17) and in
Section 86.1818-12 in the regulatory language are correct.    

Thanks.  We'll be looking forward to your comments on the proposed rule
in the coming weeks, at the hearings and in written form.  --Tad

Tad Wysor

EPA Office of Transportation and Air Quality

(734) 214-4332