UNITED S TATES ENVIRONMENTAL PROTECTION AGENCY REGION6 1445 ROSS AVENUE, SUITE 1200 DALLAS TX 75202-2733 

# .fE B 0 2 2016

Ms. Tegan Treadaway, A s sistant Secretary Office of Environmental Services Lou is iana Department of En viro runental Quality P.O. Box 4313 Baton Rouge , LA 708 2 1-43 13
Re: Return of Submitted Rules That Implement Sec tion 112(g) , and Tit les IV and V of the Clean Air Act (CAA) 

# .:1-e-:t4

-- D ea r**vif y,**  

### We are evaluating th e Chapter 5 State Impl ementatio n Plan (S IP) rule s ubmi ssions for the minor NSR permittin g pro gram
. Spec ifically , on November 15 , 1993 , November 10 , 1994 , June 27,2003, May 5, 2006, November 9, 2007, and November 3, 2014, Louisiana submitted proposed revi sions to the Louisiana SIP. The se revi s ions were adopted und er Louisiana A dministrative Code (LAC) 33: III Chapter 5- Permit Procedures to impleme nt Section 112(g) , titles IV and V of the CAA. We are returnin g some revisions, in addition to those r eturn e d on Au gust 4 , 20 1 5, that we be li eve shou ld not be acted upon for inclu s ion in the SIP

. We are returning th e titl e IV acid rain rul e subm ittals beca u se the Region d oe s no t have t h e au thority to act upon those s ubmittals. Th e EP A is also r eturning th e CAA 1 12(g) rules and the title V operating p ermit rules. We cannot act up on ei ther the S ection 11 2(g) rul es or the title V rules as part of a S IP rev i s ion under title I as they a r e not necessary to impl e m ent the requirements the CAA title I. 

### The enclosure li sts the indi vid ual SIP revi s ion s we identifi e d as unnecessary for impl e ment ing the requiremen ts of Section 112(g) and ti tl es IV and V of the CAA.
If you believe the propo s ed Section 1 12(g) revi s ions or the title V revision s are necessar y to fulfi ll CAA title I NSR S IP requirements, plea se provide us with your ratio na le no l ater than 30 days follow in g th e date of this letter. Such rationale must include a demonstration of how the rul es are needed to en s ure new and modifi ed sources do no t vio l ate th e contro l s trategy and do n ot in te rfere with attairunent and maintenance of the national ambi e nt a ir quality standards. See 40 C FR 51.160(a). Also , if you de s ire that we take so me other action with e ither the CAA ll2 (g) rules or the title V rules s uc h as co nsiderati on of th e title V submittal s as program updates, ple ase provide us with your request.

Internet Address (URL) • http ://www.epa

. gov/r eg i on6 Rec ycl e d/Recycl able • Printed with Vegetab l e Oi l Based Inks on 100% Postconsumer

. Process Ch l orine Free Recycled Paper

### We appreciate the opportunity to work with you and if you have any questions, please call Ms

. Stephanie Kordzi ofmy staff at (214) 665-7520.

Enclosure Sincerely yours ,

# ~ Wren Stenger Director Multimedia Planning and Permitting DivisionTi tle of Submittal
Air Permit Procedure Revisions Date Adopted by State 11/15/1993 

### Enclosure

Date Rules Being Returned to the State. Submitted

to EPA 1 1/15 /1993 Portion o fLAC 33:III.50l.A.l.c.- 

### "or to other regulations promulgated under section 112 of the federal Clean .Air A ct. "

LAC 33:JII. 501.B.4

. . a. ii. (resending citation (501.8.4.ii) beca use it was incorrectly listed in 8/4/ 2015 letter) LAC 33:111.501.C.3.- Title V (11/15/93) 3. Notwithstanding Subsection 

### C. 2 of this Section, prior to issuance or revision of a permit , the permitting authority may issue authorization to construct to an owner or operator in appropriate circumstances where there is a positive human health or environmental benefit, provided such an authorization is notprecluded by any federally applicable requirement or by 40 CFR Part 70. Portion of LAC:III.502.A. for "Emissions Unit" definition "or any hazardous air pollutant listed under section 112(b)" and "This term is not meant to alter or affect the definition of the term "unit" for the purposes of title IV of the Clean Air Act" Portion ofLAC 33:11l.502.A.f. for " Regulated Air Pollutant" definition 

## f any pollutant regulated pursuant to section 112 ( Hazardous Air Pollutants) of the Clean Air Act

. Portion ofLAC 33:Ill.513A.2. The owner or operator of a Part 70 source as defined in LAC 33://1.502 shallpublish a notice of the application in a newspaper of general circulation in the local area where the source is or would be located LAC 33:111.517.A.2. 2. For Part 70 sources, permit applications for an initial permit issued in accordance with LAC 33:111507 shall be submitted by the date established for submittal in accordance with LAC 33:1II.507.C. A copy of each permit application pertaining to a major Part 70 source shall he provided to EPA by the owner or operator at the time the application is subm itted to the permittinf{ authority. LAC 33:111.517.B.2.a., 2.b., 2.c., 2.d. , and a portion of 

### 5 I7. 8.3. "

... , including Part 70 applications ".
LAC 33:111.517.E., E

. I. , E.2., E

. 3., E.4., E.5. , E.6., E .7., E.8. LAC 33:111.519.C.2, 519

.C.3.Title of Date Date Rules Being Returned to th e State
. Submittal Adopted Submitted by State to EPA LAC 33:111. 52l.A.4. and A.5.
C orrection : LAC 33 : 111. 523.A. I. c
. (rese nd in g c itatio n ( 523 .A.c) because it was incorrectly Iisted in the 8/4/ 2015 letter) "c. increases in permitted emissions of Louisiana toxic air pollutants or of federal hazardous air pollutants would not constitute a modification under LAC 33://1 Chapter 51 or under Section 112(K) of the Clean Air Act." A ir Permi t l l/20/ 1994 1 1/10/1994 Sentence in LAC 33 :lll. 50 !

. B.S

. (subsumed 5 / 5

/ 06) Procedure "For the purpose of permitting requirements under LAC Revision s 33:111.50 7. no exemption listed in the following table shall become effective until approved by the administrator in accordance with 40 CFR Part 70."

Air Permit 5/ 20/ 2002 6 / 27/ 2003 Sentence in LAC 33:111.50l.B.5. (subsumed 5/ 5/06) Procedure "For the purpose of permitting requirements under LAC Revisions 33:I//.507 , no exemption listed in the following table shall
' become effective until approved by the administrator in accordance with 40 CFR Part 70

. " Air Permit 5 / 20/ 2005 5 / 5/2006 Se ntence in LAC 33: III .50l.B.S. Procedure 1 0 / 20 / 2005 " For the purpose of permitting requirements under LAC Revisions 33:Il/.507, no exemption listed in the following table shall become effective until approved by the admini s trator in accordance with 40 CFR Part 70. " LAC 33 : 111.507. H.4. and 507.H

. S.d.
Air Permit 6 /2 0 / 2007 11/9 / 2007 Sentence in LAC 33:III.513.A.2. Procedure " The owner or operator of a Part 70 sour ce as defined in and ERC LAC 33:111.502 shallpublish a notice of the application in Bank ing a**new~paper** of gene ral c irculation in the local area Revisions where the source is or would be located. " A ir Permit 8/ 20 / 2007 8 /14/2 009 LAC 33 : IJI.505.B. and 505.C. Procedure and ERC LAC 33:III.507.C.3., 507.H.4. , 507.H.5.d. Banking RevisionsT itl e of Da te Date Ru le s Bei ng Ret u rn ed t o the St ate . Sub mi ttal A d opted Submitted by Sta te to EPA 2011-2013 11 / 20 / 2012 11 / 3 / 2014 LAC 33:111.501.8.- Insignificant Activities List D.b. and Permi t Rule D

.c. 

## SIP b

. T he emissions unit emits and has the potentia / to em i t Revision less than the min imum emiss ion rate listed in LAC 33:/ll.5112

. Table 5l.l,for each Louisiana toxic air pollutant.
c. The emiss ion s unit emits and has the potential to emit less than the d e minimis rate established pursuant to Section 112 ( g) of the federal Clean Air Act for each ha z ard o us air p o llutant.

Correction: LAC 33:111.50 l.B.4.a.ii.. Resending citation (50 l.B.4.ii) because it was incorrectly li s ted in the 8/4/1 5 letter.

" ii. the source emits and has the potential to emit less than the minimum emission rate listed in Table 51. 1, LAC 33 :JJI.Chapter 5l,jor e ach Louis iana toxic air pollutant; " LAC 33:III.502

.A.- Definition for Nonroad Engine