UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGIONS 1445 ROSS AVENUE, SUITE 1200 DALLAS TX 75202-2733 

# AUG 0 4 2015
Ms. Tegan Treadaway , Ass is tant Secretary Office of Environm ental Services L ouisiana Departme nt of Env ironm e ntal Quality P .O. Box 4313 Baton Rouge , LA 70821-4313 Re : Return of Submitted Rules That Implem e nt Titles IV and V ofthe C lean Air Ac t (CAA) Dear Ms. Treadaway, O n November 15 , 1 993, November 10 , 1 994 ; May 5, 20 06 , Dece mb er 2 1 ,20 1 1 , and Nove mbe r 3, 20 14, Loui s iana s ubm i tt ed proposed revision s to t he Loui si an a State Impl em e n tation Plan (S IP)
. These revisions were adopted und er Louisiana A dministrative Code (LAC) 33:I II Chapter 5

- Permit Proc edures to impl e ment Title s IV a nd V of the CAA
. We are returning th e T itl e IV rule submittal s because the Region do es not have the authority to act upon those s ubmitta ls as submitt e d. The EPA is also returning the Title V rules. We cannot act upon the Title V rules as part of a SIP revi s i on under Title I unles s they are necessary to implement the requirements the CAA Titl e I. 

### The Enclosure lists the individual S IP revision s we identified as impl e m e nt in g the requireme nts ofT itl es IV and V. If you belie ve th e proposed Title V revisions are necessary to fulfill CAA Title I NS R S IP requirements, please provide us w ith your ra ti onale no later than 30 days follow ing the date of thi s le tter. Such rati o n al e mu s t include a demon st r ation of how the rule s are n eede d to ensure new and modified so urc es do not violate the con trol s trategy and do not interf e re with attainment and maintenance of the national ambient air qu ality s tandards. See 40 CFR 51.160(a). Also, if you desire that we t ake some other action with th e Title V rules such as co n sidera tion of Tit l e V s ubmittals as program upd ates, please provide us with yo ur reque st. We appreciate the opportunity to work wi th you and if yo u have any qu estio n s, please ca ll Ms. Stephanie Kord zi of my staff at (2 1 4) 665-7520
.

# sin**~Je** Wre n S t enger "\ D irector 

# J Multimedia Pl anning and Permi tti ng D ivision Enclosure

Internet Address (URL) • hUp : //www.epa.gov/region6 Recycled/Recyclable • Printed with Vegetable Oil Based Inks on 100% Postconsumer, Process Chlorine Free Recycled PaperEnclosure
Ti tle of Date Date Rules Being Returned to the State. S ubmittal Adopted Submitted by State to EPA Air Permit 11 / 15 / 1993 11/15/1993 LAC 33:III.501.l.b, and 50l.l.d., 50l.B.4 .ii
. Procedure LAC 33:111.502.A. -last sentence, "Whenever provisions Revisions related to the Acid Rain Program are concerned, the definitions provided in 40 CFR Part 72 shall apply." LAC 33: Hl. 502 .A. Definitions for Affected Source, Affected State, Affected Unit , Designated Representati ve. Portion of LAC 33: 111.502 .A. Definition of Em i ssions Unit "or any hazardous air pollutant listed under section 112 (b) of the CAA
. " "This term is not meant to alter or affect the definition of the term " unit' for the purposes of title IV of the CAA." LAC 33:H l. 502
.A
. defin iti ons Federally Applicable Requirement, Major Source , Oil and Gas Well and Pipeline, Pari 70 Source, P e rmit Rene wal (or Renewal), State-only Change Portion of LAC 33: 11I. 502
. A. Definition of Regulated Air Pollutant e. and h. "e. any Class I or II substance subject to a standa rd promulgated under or established by Iitle VI (Stratospheric Ozone Protection) of the Clean Air Act; and h. for the purposes of permitting requirements, pursuant to LAC 33:/JI.Chapter 51, regulated air pollutants shall include all Louisiana toxic air pollutants listed in Tables 51.1 or 51.3 of LAC 33:IllChapter 51. " Portion of LAC 33:lll.502.A. Definition of Responsib l e Offic ia l d. "or d. for affe c ted sources: i. the designated representative in so far as actions ,**standard~.** requirements, orprohibitions under title IV of the Clean Air Act or 40 CFR Part 70 or LAC 33:Ill507." LAC 33: 111. 502
. A.defin itio n s State-only Change Portion of LAC 33:III.502.A. Definition of Title I Mod i fication d
. 

### "d. the change will result in the applicability of a maximum achievable control technology (MACT) determination pursuant to regulation s pr omulgated under section 112(g) (Modifications, Hazardous Air Pollutants ) of the Clean Air Act." LAC 33:III.505- 505.A
. , 505.8., 505.C., 505.D., 505.E
. , 505
. F., 505
. G. , 505
. 1. , 

### 505.1 ., 505.K., 505 .L. , 505.M., 505
.N. , 505.0., 505.P., 505.Q., 505.R ., 505
. S
. , LAC 33:IU
. 507- 507
. A. , 507 .8. , 507
.C ., 507 .0., 507.£ ., 507
. F
. , 507.G., 507.H., 507.1., 507.1.Title of Date Date R ul es Being Returned to the 

### State. S ubmittal A dopted Submitted by State to E P A LAC 33: 111. 523.A.c.
" c. increases in permilt e d emissions of Louisiana toxic air pollutants or of federal hazardous airpollutants would not constitute a modific ation under LAC 33:IJJ. Chapter 51 or under Section 1 12($!,) of the C lean Air Act." LAC 33: III .531.A.2 , 53l.A.3., 531.A.4., 53 1.8
. 1. LAC 33: III .533

- 533.A., 533. 8. , 533.C., 533. 0 ., 533.E
. A ir Permit 1 1/20/ 1994 111 1011 994 LAC 33: 111 .5 07 .8.2., 507.C. I
. b. Proc e dure LAC 33: 11 1.533.8.5. Revi s io n s Ai r Pe rmi t 5/2 0/2 005 51 51

2006 L AC 33: 111 .505.0. 1 .3. , 5 0 5.8.2
. , 505. B.4.c.i. , 505.C.2.b. , Proce dure 10/ 2 0/2005 505
. 0
. 1 , 505.0.3. , 505 .0.4. , G.3.a., G.4.a
. Re vi s io n s LAC 33: 111. 507.C.3. A ir Per mit 4/20/2011 12/21/2011 LAC 33: 1Il. 502.A

- l ast sen te nce , " Whenever pro v i s io n s Procedu re related to th e Ac id Rain Pr ogram a re co ncerned, th e Revisions

- defin i tions prov ided in 40 CF R P art 72 shall apply." Gre e nhou s e L AC 33: 1II .De fi n iti o n s Maj o r Source Gas 2011-2013 l l/20/ 2 01 2 1 1/3 / 2014 LAC 33: 11 1.533

- EPA Not ice , Rev i ew, and Objection Permit Rul e S IP Revis ion