From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: "james.tamm@dot.gov" <james.tamm@dot.gov> Cc: Byron Bunker/AA/USEPA/US@EPA Date: 08/12/2010 05:27 PM Subject: RE: EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA - Combined File 

### Thanks! From: james.tamm@dot.gov [mailto:james.tamm@dot.gov] Sent: Thursday, August 12, 2010 4:17 PM To: Achanta, Chandana L. Cc: Bunker.Byron@epamail.epa.gov Subject: EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA - Combined File 

### Chandana, Att ached is the joint EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA in a combined (single) file format. Jim Jam es Tamm Fuel Econom y Division Chief Office of Rulemaking National Highway Traffic Safety Administration Rm W4 5 - 340 1200 New Jersey Ave. SE Wa shington, DC 20590

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA Date: 08/12/2010 05:40 PM Subject: RE: EPA and NHTSA HD Fue l Efficiency and GHG Draft RIA - Combined File 

### Hi Byron, Thanks for your note. Your contact info is useful because I am sure I will be calling you lots! My number is 202 - 395 - 1041 in case you don’t have my work number. I too look forward to workin g with you. Will you be the main contact person for EPA on this rule? thanks.

### Chandana

From: Bunker.Byron@epamail.epa.gov [mailto:Bunker.Byron@epamail.epa.gov] Sent: Thursday, August 12, 2010 5:37 PM To: Achanta, Chandana L. Cc: james.tamm@dot.gov Subject: RE: EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA - Combined File Hi Chandana, I don't remember if we have traded e - ma ils before, and I know we only briefly met during the me etings leading up to the President's announcement in May. I tho ught I should respond to your note to make sure you have all of m y contact information (copied below in m y signature line). We are looking forward to working with you on this proposal. Thanks, By ron

************************************************* ***************** By ron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standards Division Office of Transportation and Air Quality US Environmental Protection Agenc y 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 4050 (fax) (734) 353 - 9623 (cell) e - ma il: bunker.byron@epa.gov **********************************************************

From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: "james.tamm@dot.gov" <james.tamm@dot.gov> Cc: Byron Bunker/AA/U SEPA/US@EPA Date: 08/12/2010 05:27 PM Subject: RE: EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA - Com bined File

Thanks! From: james.tamm@dot.gov [ mailto:james.tamm@dot.gov ] Sent: Thursday, August 12, 2010 4:17 PM To: Achanta, Chandana L. Cc: Bunker.Byron@epamail.epa.gov Subject: EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA - Combined FileChandana,

Attached is the joint EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA in a co mbined (single) file format. Jim Jam es Tamm Fuel Econom y Division Chief Office of Rulemaking National Highway Traffic Safety Administration Rm W4 5 - 340 1200 New Jersey Ave. SE Wa shington, DC 20590

----- Forwarded by Byron Bunker/AA/USEPA/ US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA Date: 08/12/2010 07:07 PM Subject: Re: EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA - Combined File Thanks, Byron. Sorry missed your call earlier. I was in a meeting about the FE label. Chandana From : Bunker.Byron@epamail.epa.gov <Bunker.Byron@epamail.epa.gov> To : Achanta, Chandana L. Sent : Thu Aug 12 17:47:34 2010 Subject : RE: EPA and NHTSA HD Fuel Efficiency an d GHG Draft RIA - Combined File Hi Chandana, Yes, I will be the main contact for EPA. You should feel free to call me anytime. If you miss me in m y office, don't hesitate to call m y cellphone. Thanks, By ron

************************************ ****************************** By ron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standards Division Office of Transportation and Air Quality US Environmental Protection Agenc y 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (7 34) 214 - 4050 (fax) (734) 353 - 9623 (cell)e - ma il: bunker.byron@epa.gov

**********************************************************

From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA Date: 08/12/2010 05:4 0 PM Subject: RE: EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA - Com bined File

Hi Byron, Thanks for your note. Your contact info is useful because I am sure I will be calling you lots! My number is 202 - 395 - 1041 in case you don’t have my work number. I too look forward to working with you. Will you be the main contact person for EPA on this rule? thanks. Chandana From: Bunker.Byron@epamail.epa.gov [ mailto:Bunker.Byron@epama il.epa.gov ] Sent: Thursday, August 12, 2010 5:37 PM To: Achanta, Chandana L. Cc: james.tamm@dot.gov Subject: RE: EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA - Combined File Hi Chandana, I don't remember if we have traded e - ma ils before, and I know we only briefly met during the me etings leading up to the President's announcement in May. I thought I should respond to your note to make sure you have all of m y contact information (copied below in m y signature line). We are looking forward to working with you on this proposal. Thanks, By ron

****************************************************************** By ron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standards Division Office of Transportation and Air Quality US Environmental Protection Agenc y 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 4050 (fax) (734) 353 - 9623 (cell)e - ma il: bunker.byron@epa.gov

**********************************************************
From: "Achanta, Chandana L." <Cha ndana_L._Achanta@omb.eop.gov> To: "james.tamm@dot.gov" <james.tamm@dot.gov> Cc: Byron Bunker/AA/USEPA/US@EPA Date: 08/12/2010 05:27 PM Subject: RE: EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA - Com bined File

Thanks! From: j ames.tamm@dot.gov [ mailto:james.tamm@dot.gov ] Sent: Thursday, August 12, 2010 4:17 PM To: Achanta, Chandana L. Cc: Bunker.Byron@epamail.epa.gov Subject: EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA - Combin ed File Chandana, Attached is the joint EPA and NHTSA HD Fuel Efficiency and GHG Draft RIA in a combined (single) file format. Jim Jam es Tamm Fuel Econom y Division Chief Office of Rulemaking National Highway Traffic Safety Administration Rm W4 5 - 340 1200 New Jersey Ave. SE Wa shington, DC 20590

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, "james.tamm@dot.gov" <james.tamm@dot.gov> Date: 08/17/2010 10:22 AM Subject: HD call 

### Byron, Jim - Are you available at 11 today for a quick call on status, briefings etc? I am available later today too if 11 is not good for you.

### Byron - do you have a call in number like B ill Charmley has? We always used his number for all

CAFÉ related conference calls and it was very convenient. I assume all EPA Ann Arbor folks have it! Otherwise, I can conference us all in. thanks! Chandana

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Gladys Bryant - Akers/DC/USEPA/US@EPA, Byron Bunker/AA/USEPA/US@EPA, "james.tamm@dot.gov" <james.tamm@dot.gov>, "michelle.rice@dot.gov" <michelle.rice@dot.gov>, "'Joanne.Petrie@dot.gov'" <Joanne.Petrie@dot.gov> Date: 08/25/2010 12:25 PM Subject: RE: HD Fuel Economy and GHG Briefing
I never heard back from the DOT folks about this week.... but I think we may need to consider Monday as well. The best time on our end seems to be 4PM. Can you please check if that time works for everyone? Alternatively, we can also shoot for 2PM that day. It would be great if one person from each agency coordinates for all attendees for your respective agency. Thanks! Chandan a

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: "james.tamm@dot.gov" <james.tamm@dot.gov>, Byron Bunker/AA/USEPA/US@EPA, Gladys Bryant - Akers/DC/USEPA/US@EPA, "Michelle.Rice@dot.gov" <Michelle.Rice@dot.gov>, "Neil.Eisner@dot.gov" <Neil.Eisner@dot.gov> Date: 08/30/2010 01:43 PM Subject: Times for HD meeting 

### Lets aim for a meeting next week? Here are our available times: Tuesday, Sept 7 th 

### : 4PM Wed Sept 8 t h 

### : anytime after 2PM Sept 9 th 

### : 3:30PM. Do any of those times work? Thanks. Chandana

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM -----From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: "Neil.Eisner@dot.gov" < Neil.Eisner@dot.gov>, Byron Bunker/AA/USEPA/US@EPA, "james.tamm@dot.gov" <james.tamm@dot.gov>, "Michelle.Rice@dot.gov" <Michelle.Rice@dot.gov> Date: 08/30/2010 02:51 PM Subject: FW : Times for HD meeting fyi

----- Original Message ----- From: Bryant - Ak ers.Gladys@epamail.epa.gov [mailto:Bryant Akers.Gladys@epamail.epa.gov] Sent: Monday, August 30, 2010 1:52 PM To: Achanta, Chandana L. Subject: Re: Times for HD meeting The only time that works on Margo's calendar is Tuesday, Sept 7 at 4:00 pm. From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: "james.tamm@dot.gov" <james.tamm@dot.gov>, Byron Bunker/AA/USEPA/US@EPA, Gladys

Bryant - Akers/DC/USEPA/US@EPA, "Mi chelle.Rice@dot.gov" <Michelle.Rice@dot.gov>, "Neil.Eisner@dot.gov"

<Neil.Eisner@dot.gov> Date: 08/30/2010 01:43 PM Subject: Times for HD meeting

Lets aim for a meeting next week? Here are our available times: Tuesday, Sept 7th: 4PM Wed Sept 8th: anytime after 2PM Sept 9th: 3:30PM. Do any of those times work? Thanks. Chandana

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/ 26/2010 04:51 PM -----From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA Cc: "james.tamm@dot.gov" <james.tamm@dot.gov> Date: 09/02/2010 10:20 AM Subject: RE: FW : Times for HD meeting 

### We will be in the Wilson Room of the White House Conference Center (4PM Tuesday) I just need full names of folks attending. No need for ssn or dob. Can you send that to me by COB Tomorrow? Thanks. Chandana From: Bunker.Byron@epamail.epa.gov [mailto:Bunker.Byron@epama il.epa.gov] Sent: Thursday, September 02, 2010 10:13 AM To: Achanta, Chandana L. Cc: james.tamm@dot.gov Subject: Re: FW: Times for HD meeting Hi Chandana, Did yo u want to suggest a time this morning for us to talk or would you prefer that Jim and I ca ll yo u whenever we can? I believe Jim will be available around 10:30. Thanks, By ron

****************************************************************** By ron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standards Division Office of Transportation and Air Quality US Environmental Protection Agenc y 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 4050 (fax) (734) 353 - 9623 (cell) e - ma il: bunker.byron@epa.gov ********************************************************* *

From : "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: "Neil.Eisner@dot.gov" <Neil.Eisner@dot.gov>, Byron Bunker/AA/USEPA/US@EPA, "james.tamm@dot.gov" <james.tamm@dot.gov>, "Michelle.Rice@dot.gov" <Michelle.Rice@dot.gov> Date: 08/30 /2010 02:51 PM Subj ect: FW : Times for HD meetingfyi

----- Original Message ----- From: Bryant - Akers.Gladys@epamail.epa.gov [ mailto:Bryant Akers.Gladys@epamail.epa.gov ] Sent: Monday, Aug ust 30, 2010 1:52 PM To: Achanta, Chandana L. Subject: Re: Times for HD meeting The only time that works on Margo's calendar is Tuesday, Sept 7 at 4:00 pm. From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> T o: "james.tamm@dot.gov" <james.tamm@dot.gov>, Byron Bunker/AA/USEPA/US@EPA, Gladys

Bryant - Akers/DC/USEPA/US@EPA, "Michelle.Rice@dot.gov" <Michelle.Rice@dot.gov>, "Neil.Eisner@dot.gov"

<Neil.Eisne r@dot.gov> Date: 08/30/2010 01:43 PM Subject: Times for HD meeting

Lets aim for a meeting next week? Here are our available times: Tuesday, Sept 7th: 4 PM Wed Sept 8th: anytime after 2PM Sept 9th: 3:30PM. Do any of those times work? Thanks. Chandana

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM -----From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Gladys Bryant - Akers/DC/USEPA/US@EPA Cc: Byron Bunker/AA/USEPA/US@EPA, "'james.tamm@dot.gov'" <james.tamm@dot.gov>, "'Michelle.Rice@dot.gov'" <Michelle.Rice@dot.gov>, "'Neil.Eisner@dot.gov'" <Neil.Eisner@dot.gov> Date: 09/02/2010 04:58 PM Subject: Re: Times for H D meeting
Wilson room of WHCC. Please send just names by cob tomorrow.

----- Original Message ----- From: Bryant - Akers.Gladys@epamail.epa.gov <Bryant Akers.Gladys@epamail.epa.gov> To: Achanta, Chandana L. Cc: Bunker.Byron@epamail.epa.gov <Bunker.Byro n@epamail.epa.gov>; james.tamm@dot.gov <james.tamm@dot.gov>; Michelle.Rice@dot.gov <Michelle.Rice@dot.gov>; Neil.Eisner@dot.gov <Neil.Eisner@dot.gov> Sent: Thu Sep 02 11:48:11 2010 Subject: Re: Times for HD meeting Hi Chandana I understand from Byron tha t this meeting has been finalized. The email below is the last I had heard on it. Do we have a location yet? Thanks. Gladys

From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: "james.tamm@dot .gov" <james.tamm@dot.gov>, Byron Bunker/AA/USEPA/US@EPA, Gladys

Bryant - Akers/DC/USEPA/US@EPA, "Michelle.Rice@dot.gov" <Michelle.Rice@dot.gov>, "Neil.Eisner@dot.gov"

<Neil.Eisner@dot.gov> Date: 08/30/2010 01:43 PM Subject: Times for HD meeting

Lets aim for a meeting next week? Here are our available times: Tuesday, Sept 7th: 4PM Wed Sept 8th: an ytime after 2PM Sept 9th: 3:30PM.Do any of those times work?

Thanks. Chandana

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA Date: 09/07/2010 11:57 AM Subject: RE: Times for HD meeting We're good with the room now so meeting still in Wilson Room of WHCC.

----- Original Message ----- From: Bunker.Byron@epamail.epa.gov [mailto:Bunker.Byron@epamail.epa.gov] Sent: Friday, S eptember 03, 2010 3:34 PM To: Wolverton.Ann@epamail.epa.gov; Achanta, Chandana L. Cc: james tamm; Balserak.Paul@epamail.epa.gov; Stewart.Lori@epamail.epa.gov Subject: Re: Times for HD meeting Yes. Sorry I didn't think to send this to you and Paul yesterd ay. Sent by EPA Wireless E - Mail Services

----- Original Message ----- From: Ann Wolverton Sent: 09/03/2010 03:09 PM EDT To: Byron Bunker; "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> Cc: "james tamm" <james.tamm@dot.gov>; Paul Balserak; Lori Stewart Subject: Re: Times for HD meeting To confirm, this meeting is scheduled for Tuesday at 4 PM in the Wilson room of the WHCC - is that correct? Ann

----- Original Message ----- From: Byron Bunker Sent: 09/03/20 10 02:57 PM EDT To: Byron Bunker; "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> Cc: "james tamm" <james.tamm@dot.gov>; Paul Balserak; Ann Wolverton; Lori Stewart Subject: Re: Times for HD meetingHi Chandana,

I wasn't thinking yeste rday, but we should assume that Paul Balserak and Ann Wolverton will join us as well. Paul/Ann
- please see the e - mail chain below for the time and place for the meeting. I will get materials to everyone by Tues AM. Thanks, Byron Sent by EPA Wireless E - Mail Services

----- Original Message ----- From: Byron Bunker Sent: 09/02/2010 06:54 PM EDT To: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> Cc: james.tamm@dot.gov Subject: Re: Times for HD meeting Hi Chandana, From EPA we expect to have Margo Oge Chet France Byron Bunker Steve Silverman or John Hannon Thanks, Byron
****************************************************************** Byron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standards Di vision Office of Transportation and Air Quality US Environmental Protection Agency 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 4050 (fax) (734) 353 - 9623 (cell) e - mail: bunker.byron@epa.gov ******************************************** ************** | ------------ > | From: | | ------------ > > --------------------------------------------------------------------

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- | |Byron Bunker/AA/USEPA/US@EPA, "'james.tamm@dot.gov'" <james.tamm@dot.gov>, "'Michelle.Rice@dot.gov'" <Michelle .Rice@dot.gov>, | |"'Neil.Eisner@dot.gov'" <Neil.Eisner@dot.gov> | > --------------------------------------------------------------------

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Wilson room of WHCC. Please send just names by cob tomorrow.----- Original Message -----

From: Bryant - Akers.Gladys@epamail.epa.gov <Bryant - Akers.Gladys@epamail.epa.gov> To: Achanta, Chandana L. Cc: Bunker.Byron@epamail.epa.gov <Bunker.Byron@epama il.epa.gov>; james.tamm@dot.gov <james.tamm@dot.gov>; Michelle.Rice@dot.gov <Michelle.Rice@dot.gov>; Neil.Eisner@dot.gov <Neil.Eisner@dot.gov> Sent: Thu Sep 02 11:48:11 2010 Subject: Re: Times for HD meeting Hi Chandana I understand from Byron that this meeting has been finalized. The email below is the last I had heard on it. Do we have a location yet? Thanks. Gladys From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: "james.tamm@dot.gov" <james.tamm@dot.gov>, Byr on Bunker/AA/USEPA/US@EPA, Gladys

Bryant - Akers/DC/USEPA/US@EPA, "Michelle.Rice@dot.gov" <Michelle.Rice@dot.gov>, "Neil.Eisner@dot.gov"

<Neil.Eisner@dot.gov> Date: 08/30/2010 01:43 PM Subject: Times for HD meetin g

Lets aim for a meeting next week? Here are our available times: Tuesday, Sept 7th: 4PM Wed Sept 8th: anytime after 2PM Sept 9th: 3:30PM. Do any of those times work? Thanks. Chandana----- Forwarded by Byron Bunker/AA/USEPA/US on 10/2 6/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA Date: 09/07/2010 01:55 PM Subject: RE: Times for HD meeting

BRIDGE NUMBER: 202 - 395 - 6392 CONFEREE PASSCODE: 143 5971

----- Origin al Message ----- From: Bunker.Byron@epamail.epa.gov [mailto:Bunker.Byron@epamail.epa.gov] Sent: Tuesday, September 07, 2010 12:33 PM To: Achanta, Chandana L. Subject: Re: Times for HD meeting Thanks Chandana. I have an e - mail from Paul Balserak asking if there will be a call in number? Thanks, Byron Sent by EPA Wireless E - Mail Services

----- Original Message ----- From: "Achanta, Chandana L." [Chandana_L._Achanta@omb.eop.gov] Sent: 09/07/2010 11:56 AM AST To: Byron Bunker Subject: RE: Times for HD mee ting We're good with the room now so meeting still in Wilson Room of WHCC.

----- Original Message ----- From: Bunker.Byron@epamail.epa.gov [mailto:Bunker.Byron@epamail.epa.gov] Sent: Friday, September 03, 2010 3:34 PM To: Wolverton.Ann@epamail.epa.gov ; Achanta, Chandana L. Cc: james tamm; Balserak.Paul@epamail.epa.gov; Stewart.Lori@epamail.epa.govSubject: Re: Times for HD meeting

Yes. Sorry I didn't think to send this to you and Paul yesterday. Sent by EPA Wireless E - Mail Services

----- Origi nal Message ----- From: Ann Wolverton Sent: 09/03/2010 03:09 PM EDT To: Byron Bunker; "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> Cc: "james tamm" <james.tamm@dot.gov>; Paul Balserak; Lori Stewart Subject: Re: Times for HD meeting To confirm, this meeting is scheduled for Tuesday at 4 PM in the Wilson room of the WHCC - is that correct? Ann

----- Original Message ----- From: Byron Bunker Sent: 09/03/2010 02:57 PM EDT To: Byron Bunker; "Achanta, Chandana L. " <Chandana_L._Achanta@omb.eop.gov> Cc: "james tamm" <james.tamm@dot.gov>; Paul Balserak; Ann Wolverton; Lori Stewart Subject: Re: Times for HD meeting Hi Chandana, I wasn't thinking yesterday, but we should assume that Paul Balserak and Ann Wolve rton will join us as well. Paul/Ann
- please see the e - mail chain below for the time and place for the meeting. I will get materials to everyone by Tues AM. Thanks, Byron Sent by EPA Wireless E - Mail Services

----- Original Message ----- From: Byron Bunker Sent: 09/02/2010 06:54 PM EDT To: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> Cc: james.tamm@dot.gov Subject: Re: Times for HD meeting Hi Chandana, From EPA we expect to have Margo Oge Chet France Byron BunkerS teve Silverman or John Hannon

Thanks, Byron
****************************************************************** Byron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standards Division Office of Transportation and Air Quality US Environm ental Protection Agency 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 4050 (fax) (734) 353 - 9623 (cell) e - mail: bunker.byron@epa.gov ********************************************************** | ------------ > | From: | | ----------- - > > --------------------------------------------------------------------

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- | |Byron Bunker/AA/USEPA/US@EPA, "'james.tamm@dot.gov'" <james.tamm@dot.gov>, "'Michelle.Rice@dot.gov'" <Michelle.Rice@dot.gov>, | |"'Neil.Eisner@dot.gov'" <Neil.Eisner@dot.gov> | > --------------------------------------------------------------------

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Wilson room of WHCC. Please send just names by cob t omorrow.

----- Original Message ----- From: Bryant - Akers.Gladys@epamail.epa.gov <Bryant - Akers.Gladys@epamail.epa.gov> To: Achanta, Chandana L. Cc: Bunker.Byron@epamail.epa.gov <Bunker.Byron@epamail.epa.gov>; james.tamm@dot.gov <james.tamm@dot.gov>; Miche lle.Rice@dot.gov <Michelle.Rice@dot.gov>; Neil.Eisner@dot.gov <Neil.Eisner@dot.gov> Sent: Thu Sep 02 11:48:11 2010 Subject: Re: Times for HD meeting Hi Chandana I understand from Byron that this meeting has been finalized. The email below is the last I had heard on it. Do we have a location yet? Thanks. Gladys From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: "james.tamm@dot.gov" <james.tamm@dot.gov>, Byron Bunker/AA/USEPA/US@EPA, Gladys

Bryant - Aker s/DC/USEPA/US@EPA, "Michelle.Rice@dot.gov" <Michelle.Rice@dot.gov>, "Neil.Eisner@dot.gov"

<Neil.Eisner@dot.gov>Date: 08/30/2010 01:43 PM Subject: Times for HD meeting

Lets aim for a meeting next week? Here are our ava ilable times: Tuesday, Sept 7th: 4PM Wed Sept 8th: anytime after 2PM Sept 9th: 3:30PM. Do any of those times work? Thanks. Chandana

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chanda na_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA Date: 09/07/2010 02:20 PM Subject: RE: Draft slides for this afternoon's HD GHG and FE meeting with OMB

Thanks. Actually. Yes, I got called into another meeting. So it would be great if yo u could make copies and bring for everyone. Thanks again Chandana

----- Original Message ----- From: Bunker.Byron@epamail.epa.gov [mailto:Bunker.Byron@epamail.epa.gov] Sent: Tuesday, September 07, 2010 1:10 PM To: Achanta, Chandana L. Subject: Fw: Draf t slides for this afternoon's HD GHG and FE meeting with OMBImportance: High

Hi Chandana, Attached below should be the final version. I will bring several copies. Thanks, Byron Sent by EPA Wireless E - Mail Services

----- Original Message ----- From: Byron Bunker Sent: 09/07/2010 08:26 AM EDT To: Ann Wolverton; Paul Balserak Subject: Draft slides for this afternoon's HD GHG and FE meeting with OMB Hi Paul & Ann, Attached are the draft slides for today's meeting. I may work on th em a little this afternoon, but fundamentally this is what we intend to use. If you have any comments / suggestions, please e
- mail them to me. I will be flying in for the meeting arriving at Ariel Rios a little after noon. Thanks, Byron (See attached file: Draft OMB NPRM Brfg 7 Sept 2010.ppt)
****************************************************************** Byron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standards Division Office of Transportation and Air Quality US Environment al Protection Agency 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 4050 (fax) (734) 353 - 9623 (cell) e - mail: bunker.byron@epa.gov **********************************************************

----- Forwarded by Byron Bunker/AA/USEPA/US o n 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, "'james.tamm@dot.gov'" <james.tamm@dot.gov> Date: 09/07/2010 09:29 PM Subject: Re: Times for HD meetingCan we have a quick chat tomorrow regarding process issues? Are you

available at 11 AM? Using Byron's call in? Thanks Chandana

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: By ron Bunker/AA/USEPA/US@EPA, "'james.tamm@dot.gov'" <james.tamm@dot.gov> Date: 09/08/2010 09:31 AM Subject: Re: Times for HD meeting Ok ay How about 10:45? I have a 10 meeting and I only wanted to talk process stuff for just 5 mins. Thanks From : Bunker.Byron@epamail.epa.gov <Bunker.Byron@epamail.epa.gov> To : james.tamm@dot.gov <james.tamm@dot.gov> Cc : Achanta, Chandana L. Sent : Wed Sep 08 08:39:05 2010 Subject : Re: Times for HD meeting I have an 11:00 update with Margo actually on this rule. Any chance we could do it earlier? I can be available any time before 11:00. If 11:00 is the only time that can work, I will see if I can get the Margo meeting moved. To be sure we are all talking about the same call - in number, Phone: 866 299 - 3188 Cod e: 734 214 4155# Just out of curiosity, is this about NOAA and the Endangered Species Act or more generally about review schedule? Thanks, By ron

****************************************************************** By ron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standards Division Office of Transportation and Air Quality US Environmental Protection Agenc y 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 4050 (fax) (734) 353 - 9623 (cell)e - ma il: bunker.byron@epa.g ov

**********************************************************

From: <james.tamm@dot.gov> To: <Chandana_L._Achanta@omb.eop.gov>, Byron Bunker/AA/USEPA/US@EPA Date: 09/07/2010 10:26 PM Subject: Re: Times for HD meeting

11 am works for me. Jim

----- Original Message ----- From: Achanta, Chandana L. <Chandana_L._Achanta@omb.eop.gov> To: 'Bunker.Byron@epamail.epa.gov' <Bunker.Byron@epamail.epa.gov>; Tamm, James (NHTSA) Sent: Tue Sep 07 21:29:09 2010 Subject: Re: Times for HD meeting Can we h ave a quick chat tomorrow regarding process issues? Are you available at 11 AM? Using Byron's call in? Thanks Chandana

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop. gov> To: Byron Bunker/AA/USEPA/US@EPA Cc: "'james.tamm@dot.gov'" <james.tamm@dot.gov> Date: 09/08/2010 09:35 AM Subject: Re: Times for HD meeting Ok ay Let's make it 11 Thanks From : Bunker.Byron@epamail.epa.gov <Bunker.Byron@epamail.epa.gov> To : Achanta, Chandana L. Cc : 'james.tamm@dot.gov' <james.tamm@dot.gov> Sent : Wed Sep 08 09:34:03 2010 Subject : Re: Times for HD meeting 10:45 is good or 11:00 is now good.Sorry to make it complicated. Let me know, I can do either.

Thanks, By ron

* ***************************************************************** By ron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standards Division Office of Transportation and Air Quality US Environmental Protection Agenc y 2000 Traverwood Drive An n Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 4050 (fax) (734) 353 - 9623 (cell) e - ma il: bunker.byron@epa.gov **********************************************************

From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/US EPA/US@EPA, "'james.tamm@dot.gov'" <james.tamm@dot.gov> Date: 09/08/2010 09:31 AM Subject: Re: Times for HD meeting

Ok ay How about 10:45? I have a 10 meeting and I only wanted to talk process stuff for just 5 mins. Thanks From : Bunker.Byron@e pamail.epa.gov <Bunker.Byron@epamail.epa.gov> To : james.tamm@dot.gov <james.tamm@dot.gov> Cc : Achanta, Chandana L. Sent : Wed Sep 08 08:39:05 2010 Subject : Re: Times for HD meeting I have an 11:00 update with Margo actually on this rule. Any chance we could do it earlier? I can be available any time before 11:00. If 11:00 is the only time that can work, I will see if I can get the Margo meeting moved. To be sure we are all talking about the same call - in number, Phone: 866 299 - 3188 Code: 734 214 4155# Just out of curiosity, is this about NOAA and the Endangered Species Act or more generally about review schedule? Thanks,By ron

****************************************************************** By ron Bunker Center Director - Heavy - Duty Onro ad Center Assessment and Standards Division Office of Transportation and Air Quality US Environmental Protection Agenc y 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 4050 (fax) (734) 353 - 9623 (cell) e - ma il: bunker.byron@epa.gov ******* *************************************************** From: <james.tamm@dot.gov> To: <Chandana_L._Achanta@omb.eop.gov>, Byron Bunker/AA/USEPA/US@EPA Date: 09/07/2010 10:26 PM Subject: Re: Times for HD meeting

11 am works for me. Jim

----- Original Message ----- From: Achanta, Chandana L. <Chandana_L._Achanta@omb.eop.gov> To: 'Bunker.Byron@epamail.epa.gov' <Bunker.Byron@epamail.epa.gov>; Tamm, James (NHTSA) Sent: Tue Sep 07 21:29:09 2010 Subject: Re: Times for HD meeting Can we have a quic k chat tomorrow regarding process issues? Are you available at 11 AM? Using Byron's call in? Thanks Chandana

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, "james.tamm@dot.gov" <james.tamm@dot.gov> Cc: "Neil.Eisner@dot.gov" <Neil.Eisner@dot.gov>, "Steve.W ood@dot.gov" <Steve.W ood@dot.gov> Date: 09/10/2010 03:49 PM Subject: Missing sections of the HD trucks RIA

### Byron, Jim Do you have the missing sections of the RIA that we discussed earlier this week? I have to circulate those for interagency review as well so please send those sections as soon as possible. Thanks. Chandana

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA Date: 09/10/2010 04:18 PM Subject: RE: Missing sections of the HD trucks RIA 

### Okay. Thanks. From: Bunker.Byron@epamail.ep a.gov [mailto:Bunker.Byron@epamail.epa.gov] Sent: Friday, September 10, 2010 4:15 PM To: Achanta, Chandana L. Cc: james.tamm@dot.gov; Neil.Eisner@dot.gov; Steve.Wood@dot.gov; Cullen.Angela@epamail.epa.gov Subject: Re: Missing sections of the HD trucks RIA Importance: High Hi Chandana, The analysis is done, and we have circulated the updated drafts for a quick internal review. You should receive them first thing next week. Thanks, By ron

From : "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop. gov> To: By ron Bunker/AA/USEPA/US@EPA, "james.tamm@dot.gov" <james.tamm@dot.gov> Cc: "Neil.Eisner@dot.gov" <Neil.Eisner@dot.gov>, "Steve.W ood@dot.gov" <Steve.W ood@dot.gov> Date: 09/10/2010 03:49 PM Subject: Missing sections of the HD trucks RIA

Byron, Jim Do you have the missing sections of the RIA that we discussed earlier this week?I have to circulate those for interagency review as well so please send those sections as soon as possible.

Thanks. Chandana

----- Forwarded by B yron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, "james.tamm@dot.gov" <james.tamm@dot.gov>, "rebecca.yoon@dot.gov" <rebecca.yoon@dot.gov>, Nicole Owens/D C/USEPA/US@EPA, "Neil.Eisner@dot.gov" <Neil.Eisner@dot.gov>, "Steve.W ood@dot.gov" <Steve.W ood@dot.gov> Date: 09/15/2010 02:22 PM Subject: Summary of interagency working comments received on draft rule under EO 12866 review 

### Hi All, Please find attac hed a summary of initial interagency

working comments received under EO 12866 review of the Medium and Heav y Duty Trucks NPRM. These comments are for your consideration and are subject to further policy review. Please note that these are just initial interagency comments we received. We may send additional interagency

comments soon. Thanks. Su mmary

of inter agency

w orking comments receiv ed on dr aft rule under EO 12866 review subject to fur the r policy

rev iew

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@ omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA Cc: "james.tamm@dot.gov" <james.tamm@dot.gov>, "rebecca.yoon@dot.gov" <rebecca.yoon@dot.gov>, "Angel.Jackson@dot.gov" <Angel.Jackson@dot.gov>, Angela Cullen/AA/USEPA/US@EPA, Philip Schwartz/DC/USEPA/US@EPA, P aul Balserak/DC/USEPA/US@EPA, Ann W olverton/DC/USEPA/US@EPA, Kathryn Sargeant/AA/USEPA/US@EPA, Ken Davidson/DC/USEPA/US@EPA Date: 09/16/2010 12:41 PM Subject: RE: Heavy - Duty NPRM Climate Modelling and Economy W ide Modelling 

### Thanks. From: Bunker.By ron@epamail.epa.gov [mailto:Bunker.Byron@epamail.epa.gov] Sent: Thursday, September 16, 2010 12:29 PM To: Achanta, Chandana L. Cc: james.tamm@dot.gov; rebecca.yoon@dot.gov; Angel.Jackson@dot.gov; Cullen.Angela@epamail.epa.gov; Schwartz.Philip@epamail.epa. gov; Balserak.Paul@epamail.epa.gov; Wolverton.Ann@epamail.epa.gov; Sargeant.Kathryn@epamail.epa.gov; Davidson.Ken@epamail.epa.gov Subject: Heavy - Duty NPRM Climate Modelling and Economy Wide ModellingImportance: High

Hi Chandana, Attached are the updat ed preamble and RIA sections covering the Climate Modelling Results and the Econom y W ide Modelling results. I have left these in track changes from the previous version for your convenience. I have confirmed with Jim Tamm that NHTSA is comfortable dist ributing these. Thanks, By ron

****************************************************************** By ron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standards Division Office of Transportation and Air Quality US Environmental Pr otection Agenc y 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 4050 (fax) (734) 353 - 9623 (cell) e - ma il: bunker.byron@epa.gov **********************************************************

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/2 6/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: "'Bunker.Byron@epamail.epa.gov'" <Bunker.Byron@epamail.epa.gov> Cc: "'james.tamm@dot.gov'" <james.tamm@dot.gov> Date: 09/21/2010 09:17 AM Subject: Re: HD NPRM Rev iew Status Byron Are you free at 9:45 for a quick chat? Thanks Chandana

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, "'ja mes.tamm@dot.gov'" <james.tamm@dot.gov> Date: 09/21/2010 09:46 AM Subject: Re: HD NPRM Review StatusI guess if it is easier call me first and conference Jim?

Thanks From : Bunker.Byron@epamail.epa.gov <Bunker.Byron@epamail.epa.gov> To : james.tamm@ dot.gov <james.tamm@dot.gov> Cc : Achanta, Chandana L. Sent : Tue Sep 21 09:29:40 2010 Subject : RE: HD NPRM Review Status Yes. I will make myself available. Do you want me to open up the conference line? Or I can dais y chain us all together by calling yo u and Jim from my desk. Let me know what works best for ever yone. Thanks, By ron

****************************************************************** By ron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standards Division Office o f Transportation and Air Quality US Environmental Protection Agenc y 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 4050 (fax) (734) 353 - 9623 (cell) e - ma il: bunker.byron@epa.gov ********************************************************** From : <james.tamm@dot.gov> To: <Chandana_L._Achanta@omb.eop.gov>, <Bunker.Byron@epamail.epa.gov> Date: 09/21/2010 09:23 AM Subject: RE: HD NPRM Review Status

I'll make myself available. Jim

----- Original Message ----- From: Achanta, Chan dana L. [ mailto:Chandana_L._Achanta@omb.eop.gov ] Sent: Tuesday, September 21, 2010 9:18 AM To: 'Bunker.Byron@epamail.epa.gov' Cc: Tamm, James (NHTSA) Subject: Re: HD NPRM Review StatusByron

Are yo u free at 9:45 for a quick chat? Thanks Chandana

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, "'james.tamm@dot.gov'" <james.t amm@dot.gov>, "'rebecca.yoon@dot.gov'" <rebecca.yoon@dot.gov>, Nicole Owens/DC/USEPA/US@EPA, "'Neil.Eisner@dot.gov'" <Neil.Eisner@dot.gov>, "'Steve.W ood@dot.gov'" <Steve.W ood@dot.gov>, Ann Wo lverton/DC/USEPA/US@EPA, Paul Balserak/DC/USEPA/US@EPA Date: 09/ 21/2010 03:32 PM Subject: Summary of interagency working comments received on draft rule under EO 12866 review 

### Hi All, Please find attached a summary of interagency

working comments received under EO 12866 review of the Medium and Heav y Dut y Truck s NPRM. These comments are for yo ur consideration and are subject to further policy review. We may send additional comments soon. Are y ou available at 4:30PM today to discuss the attached summary

of comments with interagency commenters? Thanks. Ch andana Su mmary

of inter agency

w orking comments receiv ed on dr aft rule under EO 12866 review subject to fur the r policy

rev iew

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA Cc: Ann Wo lverton/DC/USEPA/US@EPA, "'jame s.tamm@dot.gov'" <james.tamm@dot.gov>, "'Neil.Eisner@dot.gov'" <Neil.Eisner@dot.gov>, Nicole Owens/DC/USEPA/US@EPA, Paul Balserak/DC/USEPA/US@EPA, "'rebecca.yoon@dot.gov'" <rebecca.yoon@dot.gov>, "'Steve.W ood@dot.gov'" <Steve.W ood@dot.gov> Date: 09/21/201 0 03:54 PM Subject: RE: Summary of interagency working comments received on draft rule under EO 12866 review 

### I requested one on our end but it’s taking a while for them to get back to me with a dial in number so can we use yours in the interest of tim e? Please email me the call in details and we’ll dial in at 4:30.

### Thanks.

From: Bunker.Byron@epamail.epa.gov [mailto:Bunker.Byron@epamail.epa.gov] Sent: Tuesday, September 21, 2010 3:48 PM To: Achanta, Chandana L. Cc: Wolverton.Ann@epamail.epa.gov; 'james.tamm@dot.gov'; 'Neil.Eisner@dot.gov'; Owens.Nicole@epamail.epa.gov; Balserak.Paul@epamail.epa.gov; 'rebecca.yoon@dot.gov'; 'Steve.Wood@dot.gov' Subject: Re: Summary of interagency working comments received on draft rule under EO 12866 review Hi Cha ndana, Yes, we can be available at 4:30. Wi ll you set up a call - in num ber or should I? Thanks, By ron

****************************************************************** By ron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standar ds Division Office of Transportation and Air Quality US Environmental Protection Agenc y 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 4050 (fax) (734) 353 - 9623 (cell) e - ma il: bunker.byron@epa.gov *************************************** *******************

From : "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: By ron Bunker/AA/USEPA/US@EPA, "'james.tamm@dot.gov'" <james.tamm@dot.gov>, "'rebecca.yoon@dot.gov'" <rebecca.yoon@dot.gov>, Nicole Owens/DC/USEPA/US@EPA, "'Neil.E isner@dot.gov'" <Neil.Eisner@dot.gov>, "'Steve. Wo od@dot.gov'" <Steve.W ood@dot.gov>, Ann Wo lverton/DC/USEPA/US@EPA, Paul Balserak/DC/USEPA/US@EPA Date: 09/21/2010 03:32 PM Subject: Summary

of interagency working comments received on draft rule under E O 12866 review 

### Hi All, Please find attached a summary of interagency

working comments received under EO 12866 review of the Medium and Heav y Dut y Trucks NPRM. These comments are for yo ur consideration and are subject to further policy review.

### We may send additional comments soon. Are y ou available at 4:30PM today to discuss the attached summary

of comments with interagency commenters? Thanks. Chandana [attachment "Summary of interagency working comments received on draft rule under EO 12866 review subject to further policy review.pdf" deleted by Byron Bunker/AA/USEPA/US]

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/U S@EPA, James Tamm <james.tamm@dot.gov>, Ann Wo lverton/DC/USEPA/US@EPA, Paul Balserak/DC/USEPA/US@EPA Date: 09/22/2010 02:17 PM Subject: RE: Next HD Meeting How about 3:30PM today? Can you provide call in details? thanks Chandana

----- Original Mess age ----- From: Bunker.Byron@epamail.epa.gov [mailto:Bunker.Byron@epamail.epa.gov] Sent: Wednesday, September 22, 2010 1:43 PM To: Achanta, Chandana L.; James Tamm; Ann Wolverton; Paul Balserak Subject: Next HD Meeting Hi Chandana, The team has been wor king this morning on the issues from yesterday's call. We think we have solutions to a number of the concerns and would like to go through those with the interagency team. As we mentioned at the end of the call, we would like to get back together today i f at all possible. Thanks, Byron Sent by EPA Wireless E - Mail Services

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, "james.ta mm@dot.gov" <james.tamm@dot.gov> Date: 09/23/2010 03:59 PM Subject: can we talk now for a few minutes? Call me? thanks----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb. eop.gov> To: "james.tamm@dot.gov" <james.tamm@dot.gov>, Byron Bunker/AA/USEPA/US@EPA Date: 09/23/2010 04:20 PM Subject: RE: can we talk now for a few minutes? Call me? thanks 

### How about 11AM tomorrow? Thanks. From: james.tamm@dot.gov [mailto:james .tamm@dot.gov] Sent: Thursday, September 23, 2010 4:07 PM To: Achanta, Chandana L.; Bunker.Byron@epamail.epa.gov Subject: RE: can we talk now for a few minutes? Call me? thanks 

### I’m available until 4:30 From: Achanta, Chandana L. [mailto:Chandana_L._ Achanta@omb.eop.gov] Sent: Thursday, September 23, 2010 3:59 PM To: Bunker.Byron@epamail.epa.gov; Tamm, James (NHTSA) Subject: can we talk now for a few minutes? Call me? thanks

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, "Lee, Amanda I." <Amanda_I._Lee@omb.eop.gov> Cc: "'james.tamm@dot.gov'" <james.tamm@dot.gov>, "'Ryan.Harrington@dot.gov'" <Ryan.Harrington@dot.gov>, "'Kevi n.Green@dot.gov'" <Kevin.Green@dot.gov>, Todd Sherwood/AA/USEPA/US@EPA Date: 09/24/2010 08:23 AM Subject: Re: Time Based Learning I have another meeting now at 9 but you can go ahead with Amanda. From : Bunker.Byron@epamail.epa.gov <Bunker.Byron@epam ail.epa.gov> To : Lee, Amanda I. Cc : Achanta, Chandana L.; james.tamm@dot.gov <james.tamm@dot.gov>; Ryan.Harrington@dot.gov <Ryan.Harrington@dot.gov>; Kevin.Green@dot.gov <Kevin.Green@dot.gov>; Sherwood.Todd@epamail.epa.gov <Sherwood.Todd@epamail.epa.gov> Sent : Fri Sep 24 07:58:35 2010 Subject : Time Based Learning Hi Am anda,I am still confirming that NHTSA can join us for a call at 9:00. If they can (or if they are OK with

EPA doing the call alone), Todd and I will call you around 9:00. If 9:00 won 't work for the NHTSA, team I will send you a note suggesting some other times. In addition to 2011 CAFE rule RIA materials I forward previously, here is a figure that captures conceptually how the EPA team thinks about time based versus volume based lea rning (i.e., in our minds they are basically the same). Also to be clear, both EPA's historic volume approach and NHTSA's time approach should under not over estimate learning effects. Thanks - By ron

*********************************************** ******************* By ron Bunker Center Director - Heavy - Duty Onroad Center Assessment and Standards Division Office of Transportation and Air Quality US Environmental Protection Agenc y 2000 Traverwood Drive Ann Arbor, MI 48105 (734) 214 - 4155 (734) 214 - 405 0 (fax) (734) 353 - 9623 (cell) e - ma il: bunker.byron@epa.gov **********************************************************----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: "james.tamm@dot.gov" <james.tamm@dot.gov>, Byron Bunker/AA/USEPA/US@EPA Date: 09/24/2010 10:58 AM Subject: RE: can we talk now for a few minutes? Call me? thanks 

### We need to cancel the 11 call today. Will get back to you on rescheduling. From: james.tamm@dot.gov [mailto:james.tamm@dot.gov] Sent: Thursday, September 23, 2010 4:07 PM To: Achanta, Chandana L.; Bunker.Byron@epamail.epa.gov Subject: RE: can we talk now for a few minutes? Call me? thanks 

### I’m available until 4:30 From: Achanta, Chandana L. [mailto:Chandana_L._Achanta@omb.eop.gov] Sent: Thursday, September 23, 2010 3:59 PM To: Bunker.Byron@epamail.epa.gov; Tamm, James (NHTSA) Subject: can we talk now for a few minutes? Call me? thanks

----- Forwarded by Byron Bunker/AA/USEP A/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, "james.tamm@dot.gov" <james.tamm@dot.gov> Date: 09/24/2010 05:32 PM Subject: sorry running over my 5PM call


### Can we ta lk at 5:45? I will get off.

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, "james.tamm@dot.gov" <james.tamm@dot.gov> Date: 10 /05/2010 11:54 AM Subject: Follow - up call 

### Looks like tomorrow won’t work for a key folks here. Would 11AM Oct 7 th 

### work for both of you? Thanks.

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM -----From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: "james.tamm@dot.gov" <james.tamm@dot.gov>, Byron Bunker/AA/USEPA/US@EPA Date: 10/06/2010 03:23 PM Subject: RE: Follow - up call 

### How about 10 instead? From: james.tamm@dot.gov [mailto:james.tamm@dot.gov] Sent: T uesday, October 05, 2010 4:24 PM To: Achanta, Chandana L.; Bunker.Byron@epamail.epa.gov Subject: Re: Follow - up call 

### Chandana, I have a conflict Thursday at 11 am. Could the meeting be scheduled at noon? Jim From : Achanta, Chandana L. [mailto:Chandana_ L._Achanta@omb.eop.gov] Sent : Tuesday, October 05, 2010 11:54 AM To : Bunker.Byron@epamail.epa.gov <Bunker.Byron@epamail.epa.gov>; Tamm, James (NHTSA) Subject : Follow - up call 

### Looks like tomorrow won’t work for a key folks here. Would 11AM Oct 7 th 

### work for both of you? Thanks.

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, Ann W olverton/DC/USEPA/US@EPA, "'james.tamm@dot.gov'" <james.tamm@dot.gov>, "'Neil.Eisner@dot.gov'" <Neil.Eisner@dot.gov>, Nicole Owens/DC/USEPA/US@EPA, Paul Balserak/DC/USEPA/US@EPA, "'rebecca.yoon@dot.gov'" <rebecca.yoon@dot.gov>, "'Steve.W ood@dot.gov'" <Steve.W ood@dot.gov> Date: 10/10/2010 08:54 PM Subjec t: Summary of interagency working comments received on draft rule under EO 12866 review 

### Hi All, Please find attached a summary of interagency

working comments received under EO 12866 review of the Medium and Heav y Dut y Trucks NPRM. These comments are for yo ur consideration and are subject to further policy review. Thanks. Su mmary

of In teragency

Working Comments received on dr aft rule under EO 12866 r ev iew

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM -----From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, "'james.tamm@dot.gov'" <james.tamm@dot.gov> Date: 10/13/2010 12:08 AM Subject: Conf call 

### Byron If you want a call tomorrow, the best time on our end is 2PM. Would that work for you? Thanks. Chandana

----- Forward ed by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, Ann W olverton/DC/USEPA/US@EPA, "'james.tamm@dot.gov'" <james.tamm@dot.gov>, "'Neil.Eisner@dot.gov '" <Neil.Eisner@dot.gov>, Nicole Owens/DC/USEPA/US@EPA, Paul Balserak/DC/USEPA/US@EPA, "'rebecca.yoon@dot.gov'" <rebecca.yoon@dot.gov>, "'Steve.W ood@dot.gov'" <Steve.W ood@dot.gov> Date: 10/18/2010 07:09 PM Subject: Summary of interagency working comments received on draft rule under EO 12866 review


### Please find attached a summary of interagency

working comments received under EO 12866 review of the Medium and Heav y Dut y Trucks NPRM. These comments are for yo ur consideration and are subject to furth er policy review.

Thanks. SU mmary of In te rag ency w orking comments receiv ed on dr aft rule under EO 12866 rev iew

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, "james.tamm@dot.g ov" <james.tamm@dot.gov> Date: 10/19/2010 11:49 AM Subject: Lets talk at 12:30PM? 

### Can we use your call in number Byron? Thanks.----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, Ann W olverton/DC/USEPA/US@EPA, "'james.tamm@dot.gov'" <james.tamm@dot.gov >, "'Neil.Eisner@dot.gov'" <Neil.Eisner@dot.gov>, Nicole Owens/DC/USEPA/US@EPA, Paul Balserak/DC/USEPA/US@EPA, "'rebecca.yoon@dot.gov'" <rebecca.yoon@dot.gov>, "'Steve.W ood@dot.gov'" <Steve.W ood@dot.gov>, Angela Cullen/AA/USEPA/US@EPA Date: 10/22/2010 11: 24 AM Subject: Summary of interagency working comments received on draft rule under EO 12866 review 

### Please find attached a summary of interagency

working comments received under EO 12866 review of the Medium and Heav y Dut y Trucks NPRM. These comments are for yo ur consideration and are subject to further policy review. Su mmary

of In te rag ency W orking Comments on draft rule under EO 12866 review

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Chandana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron B unker/AA/USEPA/US@EPA, Ann W olverton/DC/USEPA/US@EPA, "'james.tamm@dot.gov'" <james.tamm@dot.gov>, "'Neil.Eisner@dot.gov'" <Neil.Eisner@dot.gov>, Nicole Owens/DC/USEPA/US@EPA, Paul Balserak/DC/USEPA/US@EPA, "'rebecca.yoon@dot.gov'" <rebecca.yoon@dot.gov>, "'Steve.W ood@dot.gov'" <Steve.W ood@dot.gov>, Angela Cullen/AA/USEPA/US@EPA Date: 10/22/2010 11:41 AM Subject: Summary of interagency working comments received on draft rule under EO 12866 review 

### Please find attached additional interagency comments re ceived under EO 12866 review of the draft NPRM. These comments are for your consideration and subject to further policy review. Su mmary

of In te rag ency w orking comments on dr aft r ule under EO 12866 review

----- Forwarded by Byron Bunker/AA/USEPA/US on 10/26/2010 04:51 PM ----- From: "Achanta, Ch andana L." <Chandana_L._Achanta@omb.eop.gov> To: Byron Bunker/AA/USEPA/US@EPA, Chet France/AA/USEPA/US@EPA, "'Neil.Eisner@dot.gov'" <Neil.Eisner@dot.gov>, "'james.tamm@dot.gov'" <james.tamm@dot.gov>, "'Steve.W ood@dot.gov'" <Steve.W ood@dot.gov>, "'rebecca. yoon@dot.gov'" <rebecca.yoon@dot.gov>, Angela Cullen/AA/USEPA/US@EPA, Paul Balserak/DC/USEPA/US@EPA, Ann W olverton/DC/USEPA/US@EPA, Nicole Owens/DC/USEPA/US@EPA, "Jennifer.Abdulwali@dot.gov" <Jennifer.Abdulwali@dot.gov>, "LaTanya.Anderson@dot.gov" <LaTanya .Anderson@dot.gov>, "Laura.reeves@dot.gov" <Laura.reeves@dot.gov>, "Joanne.Petrie@dot.gov" <Joanne.Petrie@dot.gov> Date: 10/22/2010 06:34 PM Subject: Medium and Heavy Duty Trucks NPRM

### OMB review of EPA’s “Control of Greenhouse Gas Emissions From Heav y - Duty Vehicles” (RIN

2060 - AP61 ) NPRM and DOT’s “Commercial Medium
- and Heavy - Duty On - Highway Vehicles and Work Truck Fuel Efficiency Standards” (RIN 2127
- AK74) NPRM was concluded on October 22, 2010.