**a3/2~/2011** 13:a8

Bonay hNOAL <;O\IT-:!L'JOR 22'52193240

## ~tate 

# of JLouisiana OEPARTMENT OF ENVIRONMENTAL QUALITY**E~IRONMENTA.L** 

### SERVICES PAGE 81/02

PEGGY M. HATCH St;t:R.f.TARV

Mr. Guy 

### R. Donaldson Chief, Air Planning Section (6PD) 

### U.S. Environmcntal

### Protection Agency, Region (j 1445 Ross Avenue, Suite 1200 Dallas. TX 75202-2733 Re: 

### State Implementation Plan 

### (SIP) fnfrastruCl'ure Requirements under Section 

### 11 O(aXl) and (2) oftne Clean Air Act (CAA) Dear Mr. Donaldson: Pcr discussions With Ms. Carrie Paige ofyour staff. the Louisiana Department ofEnvironmental 

### Quality 

### (lDEQ) undcrstc:mds that EPA is working to approve Louisiana's 

### SIP as meeting 

### the requirements of Section 11O(a)(l) and (2) of the 

## eAA. ll1is lener serves as a supplemental certificatioo for the purposes ofclarifying and amending Ute S1ate ofLouisiana's prior letters of certification dated December 11. 2007 l and 

### January 7.2008. Ol.one 

### and PMu By letter dated December 11, 2007. the state of Louisiana, through LDEQ. certified that its existing SIP for implementation of the 1997 ozone and PM.2s**~AAQS** included nIl of the requirements ,5et fortll in Section 110(a)(1) and (2) ofthe 

## eA.A. This correspondence clarifies that LDEQ's January 7, 2008. submittal addresses the 1997 ozone and PM2
.5 Natlonal Ambient Air Quality Standards (NAAQS). LDEQ reiterates that the infrastructure SIP for implementation ofthe 1997 ozone and**PM2.~** NAAQS as submitted 10 EPA satisfies the requirements established by Section llO(a)(l) and (2) ofthe CAA. 

### Greenhouse Cases (GHGs) Section IIO(a)(2HC) 

### iDEQ has promulgated rules establishjng programs for the prevention of signific:lnt deterioration of air quality (LAC 33:H1.509) and minor source permilting requirements (LAC 33:II1.501 and 503). These rules have been submitted to EPA in various SIP revisions and ha

....c been approved in the 

### FederalRegister. LDEQ certifies that those aspects ofour Prevention ofSignificant Deterioration (PSD) program which pertain to the regulalion ofGHGs at or above lhe thresholds set forth in the federal GHG Tailoring Rule· and are before EPA as part ofthe infrastruclure 

### SIP submittal (i.e., those portIons

1 Prevenlion ofSlsnilic:l.lll DelertOrllt;on Ind Tille V**GrecnhOll~** Gas Tililorins. Rule (75 FR 31514, JUIl: J. 21)10)

Pon O(('CC B,_,,, 4)1,1, Balon**R.ou~. I.Q\lisi~n~**  70821-4.31.1' Phon.: 225·219-3181 • I'u:**225·21~·.BI)9** "",,-w.JcqJo\l;si,,"a.gov03/24/2ell 13:08 22521'93240 PAGE 02/02



### Mr. Guy R. Donaldson Page 2



### of LAC 33:JII.S09 

### that remain SIP-approved following the promulgation of EPA's PSO SIP Narrowing Rulc1) 

### satisfy the rcquirem:nts ofsection t

### lO(a)(2)(C). LDEQ 

### also 

### celtifies that 

### OUf minor :;ource permitting program meets 

### the requirements of:;ection IIO(a)(2)(C) Section 1

### J**0(a)(2)(~** 

### With regard to tbe need for adequate resources to implement the 

### PSD program, LDEQ 

### cenifics

. that OUT 

### resources for those aspects ofthe PSD program which pertain to the regulation ofGHGs at or 

### above**tb~** 

### thresholds set fOflh 

### in the federal OHG Tailoring RulE: and are**b~forc** 

### EPA as pan 

### oCthe infrastructure SIP submiUal satisfy 

### tile requirements ofsection 11.0(a)(2)(£). Section 110(.)(2)(J} 

### With regard to PSD. LDEQ certifies that those 3Sj')eets 

### ofthe 

### PSD program whieh pertain to the regulalion ofGHGs at or above the**thr~holds** 

### set forth in the federal GHG Tailoring R\lle and arc before EPA a!' parl of the infraslrucNre SIP submittal satisfy the requirements of section 

### J10(,)(2)(.1). 

### Should you have any questions concerning this matter, please feel free to contact Vivian Aucoin ofthe Air 

### Penn.its**Divi~ion** 

### at (225) 219-3419.



### PMH

2 Limit.llion ofApprovc.1 ofPrevention ofSignificant Deterioration**Pro\'i9ion~** Concem;ng Greenhouse GOI!'>

EtniUint\-SoorccJli III St"tc Implcnlf:nt:uion PlallS (75 FR. 82536.**Dece:m~r** 30, 2010)