UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASH I NGTON. D . C. 20460 

## FEB 1 7 lOll THE AOMINISTRATO R

Ms. Julie M. Sibb ing National Wildlife Federation 901 E Sireel, NW. Suite 400 Wasrungton , D.C. 20004 Dear Ms. Sibbi ng: This letter is in response to your May 24, 2010 , petition to the U.S . Envirorunental Protection Age ncy for reconsideration of the final Regulation of Fuels and Fuel Additives: Changes to Renewable Fuel Standard Program, 75 FR 14670, March 26. 2010, and r equest for a 

### stay for a ponion of that rule pendin g reconsideration . In yo ur petition , you requested reconsideration on the issue of the EPA 's adoption of the "aggregate comp liance approach" as part of implementing the requirements for renewable biomass for certain feedstocks gro\VJl in the United States. 

### The EPA considers the ren ewab l e bi omass pro vis ions to be 

### an important part of the renewable fuel standard program and ha s carefully revie wed the arguments and infonnation provided on this issue. For reasons discu ssed in detail in the enclosed response, the EPA is denying your petition for reconsideration and also den yi ng the reque st for an admini s trative stay pending recons ideration. We thank you for your interest in these issues , and the EPA looks forward to working with 

### all stake holders to implement the 

### RFS2 program . Shou ld you 

### have any que stions. please contact Paul Arg)'Topoulo s in the EPA' s Office of Transportation and Ai r Quality at (202) 564 ­ 1123 or argyropoulos.pau l @e pa.go v. Sincerely,

# ~ Li sa 

### P. Jack son Enclosure

Inlernel A(ldress (URL) • hl!p ;l IwwN .epa gov Aeey<:iedl'R ecy el. bI• • Printed Wl1h Vegeta ble Oil Based Inks on 1 00% PoslCOOsume •. P roc ess C hionne Free Recycled PaperUNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASH I N GTON , D .C . 2046 0 

### FEB 1 7 2011 THE ADMINISTRATOR 

### Mr . Jonathan F. Lewi s 

### Ms. Helen D. Silver 

### Clean Air Task Force Inc . 18 Tremont Street , Suite 530 Boston , Massac hu sens 02108 Dear Mr. Lewis and Ms. Silver: This letter is in response to your May 24, 2010, petitions to the U.S. Environmental Protection Agency for reconsideration o f the final Regulation o f Fuels and Fuel Additives: C hanges to Renewable Fuel Standard Program , 75 FR 14670 , March 26, 20 10 , a nd reque s ts for a 

### SlaY pending reconsideration . In your petiti o ns you raised concerns with two issue s associ ated with the final RFS2 rul e: the exc lusion of the global "rebOW1d " effect in the lifecycJ e ana lysis used in detennining compliance with the req uired greenh ouse -gas-em issi ons thre s holds for various renewable fuel s and the adoption of the "agg regate co mpliance approac h " as part of implemen tin g the r equi rement s for renewab l e biomas s for certai n feedstocks g r o wn in the United S lates . The 

### EPA cons iders the renewabl e biomass provi s ions and the lif ecycle greenhouse-gas · emi ss ions threshold requ irements to be import ant parts of the RFS2 program and has carefull y reviewed the argwnent s and informati on provided on the s e tv..'o issues. For re aso ns discussed 

### in detail in the enclosed re s ponse , the EPA is denying your petitions for recon side ration and also deny ing your requests for a s tay of the rule pending recon s id e ration . We thank you fo r your interest 

### in these issues , and the E PA looks 

### forward to working 

### with all stakeholders to implement the RFS2 program. Should you have 

### any qu estions, please contact Paul Argyrop oulos in the EPA 's Office of Transporlation and Air Qu ality at (202) 564­ 

### 1123 or argyropoulos .p au1 @ epa.gov . S ince r e ly , 

### Li sa P. Jackson Enclosure Inlemet A!kress (UR L) _ http:lMw"lY . apa . gov Recycl edlRecye l .bI . _ Plin led wi l h VlIgelabie 011 Based Inks 00 100% POS l consume r . Process Chioline Free Recycle(! PaperUNITED STATES ENVIRONMENTAL PROTECT ION AGENCY WA S HINGTON , D.C. 2 04 60 

### FEB 1 7 1011 TI-£ AD M INISTRATOR

Ms. Gina De Ferrari World Wildlife Fund 125024'" Slreel, NW Washington, D.C. 20037 

### Dear Ms. De Ferrari: This letter is in response to your May 24, 2010, petition to the U.S. Environmental Protection Agen cy for reconsideration of the final Regulation of Fuels and Fuel Additives: Changes to Renewable Fuel Standard Program, 75 FR 14670 , March 26, 2010 , and request for a stay for a portion of that rule peoding reconsideration. In your pelition, you requested reconsideration on the issue of the EPA 's adoption of the "aggregate compliance approach " as part of implementing the requirements for r enewable biomass for certain feedstocks grown in the United State s. The EPA co ns iders the r e newab le biomass prov is ion s to be an important part o f the renewable fuel standard program and h as carefully re viewed the arguments and infonnation provid ed on trus issue. For reasons discussed in detail 

### in the enclosed respon se , the 

### EPA is denying your petition for reconsiderati on and also denyin g the request for an administrative stay pending reconsideration. We thank you for your interest in these issues , and the EPA looks forward to working with all stakeholders to implement the RFS2 program. Sh o uld you have any questions, please contact Paul Argyropoulos in the EPA's Office of Tran sporta tion and Air Quali£), at (202) 564­ 1123 or argyropoulos.paul@epa.gov . Sincerely, Lisa P. Jack so n Enclosure

lnlamet Adc:Ires$ (URl) _ nnp:llwww epa.goy RacveledlRacy.:;l ebi e _ Ptinled with VegetaDleOll Based Inks on 100% POSlCOnsumer. Process Chionne Flee Recyc\«I PaperUNITED STATES ENVIRONMENTAL PROTECTION AGENCY WAS H I NGTON, D .C. 20460 

## FEB 1 7 2011 THE AO Io4 INISTRATOR

Mr. David Hirsch Managing Director Fri ends of the Earth 1100 15 th Street , N W , 11th Floor Washington , D .C . 20005 Dear Mr. H irsc h : Thi s l ener is in re s ponse to yo ur May 24 , 2010 , petiti o n to the U . S . Environmen ta l PrOlection Agency for r econs id e rati on o f the final Re gul a ti on of Fuel s and Fue l Addi ti ves: C han ges to Renewable Fuel Standard Program , 75 FR 14 670 , Marc h 26, 20 10 , and reques t f o r a Slay 

### for a portion of thaI rule pending r econs id erat io n , 

### [n yo ur petition , you requested recon sideration 0 0 

### the iss ue o f the EPA ' s adoption of the " aggregate compliance approach " as part of implementing th e requirements for ren ewabl e biomass for certain feedstocks grown in the Unit ed S tat es, The EPA considers the renewable biomas s provisions to be an important pan o f the renewable fuel standard program and has carefully rev iewe d th e arg ume nts and informati o n provided on this issue. For reasons discussed in detail in the enclosed response, th e EPA is denying your petition for reconsideration and also denying 

### th e request for an administrative stay pending reconsideration. We thank you for your interest in these iss ues , and the EPA loo k s f o rward to working with all stakeholders to implement the RFS2 program. S h o uld yo u ha ve any qu es tions , please contact Paul Argyropoulos in the EPA's Office of Tran s po rtati o n and Air Quality at (202) 564­ 1123 or argyropoulos.paul@epa.gov . Sincerely , Lisa P. Jack son Enclosure

Internet Address (UAL) . hc1p J "-w .epa . gov**Fleoeye~ecyc:l b4**  • • Prin l ed with Vegetable Oil Based Inks on 100"4 POSlCOnSurner . Process ChIoI"ine Free Aec:yc1eO Paper