01/25/2012 11:56 FAX 7342144050 US EPA 

UNiTED STATES ENVIRONMENTAL PROTECTION AGENCY 


NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY


2566 PLYMOUTH ROAD


ANN ARBOR, MICHIGAN 48105-2498 

JAN 252012

OFFiCE OF


AIR AND RAOJATIQN 

Kevin Knobloch 

President 

Union of Concerned Scientists 

2 Brattle Square 

Cambridge, MA 0223 8-9105 

Thank you for your letter of January 11, 2012, to Administrator Jackson, urging the 

Environmental Protection Agency to establish a "Tier 3" program for emissions and gasoline 

standards. In your letter you also emphasized the importance of finalizing such standards in the 

immediate future, highlighting the health and environmental benefits of timely, protective Tier 3 

standards. 

We are in the process of developing a proposal for a Tier 3 program that includes more 

stringent motor vehicle emission and fuel standards. The EPA shares your goals of reducing air 

pollution from the nation's vehicle fleet, and we appreciate your input. 

Again, thank you for your letter. If you have further questions, please contact Kathryn 

Sargeant at 734-214-4441.

Chester J. France, Director

Assessment and Standards Division 

Intme Addru (URL) • 

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01/25/2012 11:5? FAX 7342144050 US EPA 

UNITED STATES ENVIRONMENTAL. PROTECTION AGENCY


NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY


2565 PLYMOUTH ROAD


ANN ARBOR, MICHIGAN 48105-2498 

JAN 25 2012

OFFIOC OF


A AND RADiATiON 

Michael Brune 

Executive Director 

Sierra Club 

408 C Street, NE 

Washington, DC 20005 

Thank you for your letter of January 11, 2012, to Administrator Jackson, urging the 

Environmental Protection Agency to establish a "Tier 3" program for emissions and gasoline 

standards. In your letter you also emphasized the importance of finalizing such standards in the 

immediate future, highlighting the health and environmental benefits of timely, protective Tier 3 

standards. 

We are in the process of developing a proposal for a Tier 3 program that includes more 

stringent motor vehicle emission and fuel standards. The EPA shares your goals of reducing air 

pollution from the nation's vehicle fleet, and we appreciate your input. 

Again, thank you for your letter. if you have further questions, please contact Kathryn 

Sargeant at 734-214-4441.

Chester 3. France, Director

Assessment and Standards Division 

Inmt Addruaa (URL) e http//ww.pov


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Chester 3. France. Directo 

Assessment and Standards Division 

01/25/2012 11:58 FAX 7342144050 

UNITED STATES ENVIRONMENTAL. PROTECTION AGENCY


NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY


2565 PLYMOUTH ROAD


ANN ARBOR, MICHIGAN 481 05-2498

OFFICE OF


AIR AND RADIATION 

Ann Menikoff 

Director 

Green Transportation Campaign 

408 C Street N.E. 

Washington, DC 20005 

Dear Ms. Mesnikoff: 

Thank you for your letter of January 11, 2012, to Administrator Jackson, urging the 

Environmental Protection Agency to establish a "Tier 3" program for emissions and gasoline 

standards. In your letter you also emphasized the importance of finalizing such standards in the 

immediate future, highlighting the health and environmental benefits of timely, protective Tier 3 

standards. 

We are in the process of developing a proposal for a Tier 3 program that includes more 

stringent motor vehicle emission and fuel standards. The EPA shares your goals of reducing air 

pollution from the nation's vehicJe fleet, and we appreciate your input. 

Again, thank you for your letter. If you have further questions, please Contact Kathryn 

Sargeant at 734-214-4441.

InIemt Addree (URL) e htlp//www.epa.;cv


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01/25/2012 1157 FAX 7342144050 US EPA 

UNITED STATES ENVIRONMENTAL PROTECTION. AGENCY


NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY 


2565 PLYMOUTH ROAD


ANN ARBOR, MICHIGAN 48105-2498 

JA 2 52012

OFFICE OF 

AIR AND RADIATION 

Frances Beinecke 

President 

Natural Resources Defense Council 

1200 New York Avenue, NW 

Washington, DC 20005 

Dear Ms. Beinecke: 

Thank you for your letter of January 11, 2012, to Administrator Jackson, urging the 

Environmental Protection Agency to establish a "Tier 3" program for emissions and gasoline 

standards. In your letter you also emphasized the importance of finalizing such standards in the 

immediate future, highlighting the health and environmental benefits of timely, protective Ticr 3 

standards. 

We are in the process of developing a proposal for a Tier 3 program that includes more 

stringent motor vehicle emission and fuel standards. The EPA shares your goals of reducing air 

pollution from the nation's vehicle fleet, and we appreciate your input. 

Again, thank you for your letter. If you have further questions, please contact Kathryn 

Sargeant at 734-214-4441.

Chester J. France, Director

Assessment and Standards Division 

Internet Addreae CURL) • http/tw.Gpe.ov

R.ycIoWAtycInbIs e Printed with Veaeteble Oil Bused Inks on 100% Po&caneumer, Process ChlorIne Fre9 Recycled Paper
01/25/2012 11:57 FAX 7342144050 US EPA 

UNJTED STATES ENWRONMENTAL PROTECTION AGENCY 


NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY 


2565 PLYMOUTH ROAD


ANN ARBOR, MICHIGAN 48105-2498 

JAN 25 2012

OFICC OF


AiR AND RADIATION 

Fred Krupp 

President 

Environmental Defense Fund 

1875 Connecticut Avenue, N.W. 

Washington, DC 20009 

Thank you for your letter of January 1], 2012, to Administrator Jackson, urging the 

Environmental Protection Agency to establish a "Tier 3" program for emissions and gasoline 

standards. In your letter you also emphasized the importance of finalizing such standards in the 

immediate future, highlighting the health and environmental benefits of timely, protective Tier 3 

standards. 

We are in the process of developing a proposal for a Tier 3 program that includes more 

stringent motor vehicle emission and fuel standards- The EPA shares your goals of reducing air 

poll Lition from the nation's vehicle fleet, and we appreciate your input. 

Again, thank you for your letter. If you have further questions, please contact Kathryn 

Sargeant at 734-214-4441.

Chester J. Frances Director

Assessment and Standards Division 

InlemeT Add race (URL) • hUp/fwww.epa.00v


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