p. 1



# OAR Box 1865 Prepped by Charmelle Mathews



# Document

Number: 

# 190 ) F R12/18/198 9

Docket Number: 

# A-83-2 7

Printed 12/3/20083:22:24 PM

Sheet 190of 198P. 3



## Monda y Decembe r 18 , 198

9



# Par t I I

. 

# Environmenta l Protectio n Agency
40 CFR Par

t 6 0 Standard s o

fPerformance fo r Ne

w Stationar y Sources ; Industrial-Commercia l Institutiona l Stea m Generatin g Units ; Amendment

s t o Nitroge n Oxides Performance Testin g an d Monitorin g Requirements ; Fina l Rule sP. 2 

# A-63-Z7

Federa l Ksgistei

r / Vol

. 54 , No

. 24 1 /

Monday , Decembe r

18 , 198 9 /

Rule s an dRegulation s
ENVIRONMENTALPROTECTIO N

40 CF R Par t 6 0 [AD-FRL-3679-7 ] Standard s o f Performanc e fo rNe w Stationar ySources ; Ondustrlal

Commercial-Institutiona l Stea m

AGENCV : Environmenta l Protectio n Agenc y (EPA)

. ACTION: Fina l rule

. SUMMARY : Thi s fina l rul e adopt s amendment s t o th e sulfu r dioxid e (SOa) an dparticulat e matte r

(PM ) emissio n standard s fo r

oil-fire dindustrial

commercial-institutiona l stea m generatin g unit s wit hhea t inpu t capacitie s greate r

tha n2 9 M W(10 0 millio nBtu/hour)

. Thes e amendments , whic hwer e propose do nJul y 6,198 9 (5 4 FR28447) , (1 ) revis e th e definitio no f ver y lo w sulfu r oil , an d(2 ) delet e th e P M emissio n limi t o f 4 3 ng/ J (0.1 0 lb/millio nBtu ) hea t inpu t fo r unit s tha t

fir e ver y lo w sulfu r oils

. N o objection s wer e raise dconcernin g thes e propose damendment s durin g th e publi c commen t

period

. I nrespons e t o suggestion s mad e b y th e commenters , tw o mino r

change s ar e bein g incorporate dt o clarif

y th e amendments

. Thes e amendments , therefore , ar e bein g promulgate dbasicall y a s proposed

. OATE : Th e effectiv e Hat e nf thi s regulatio ni s Jun e 19.1988

. ADDRESSES : Docket. Docke t Numbe r A

- 83-27 , containin g supportin g infonnatio n use di ndevelopin g th e promulgate d revision , i s availabl e fo r publi c inspectio nan dcopyin g betwee n8:3 0 a.m
. an d3:3 0 p.m. , Monda y throug h Friday , a t

EPA' s Ai r

Docket , roo mM

1500,1s t Floor , Watersid e Mall , 401 M Street , SW. , Washington , D C 20460

. A reasonabl e fe e ma y b e charge dfo r copying

. FO R FURTHE R INFORMATIO N CONTACT : Mr

. Fre dPorte r

((919 ) 541-5251 ) o r

Mr

. Ric k Coplan d((919 ) 541-5265) , Standard s Developmen t Branch , Emissio nStandard s Divisio n(MD-13) , U.S

. Environmenta l Protectio nAgency , Researc hTriangl e Park , Nort hCarolin a 27711

. SUPPLEMENTAR

Y INFORMATION: I

. Backgroun d

. Ne w sourc e performanc e standard s (NSPS ) wer e propose do nJun e 19,198 6 (5 1 F R22384) , an dwer e promulgate do n Decembe r

16,198 7 (5 2 FR47826) , limitin g emission s of

SO 2 fro mcoal

- o r

oil-fire d industrial-commercial-institutiona l stea mgeneratin g unit s wit hhea t inpu t capacitie s greate r

tha n2 9 M W(10 0 millio nBtu/hour ) an dlimitin g emission s o f P M fro moil-fire dindustrial

commercial-institutiona l stea m generatin g unit s wit hhea t inpu t capacitie s greate r

tha n2 9 M W(10 0 millio nBtu/hour)

. Base do nne w informatio nregardin g th e sulfu r conten t an dP M emission s potentia l o f fue l oils , propose drevision s t o th e SO i an dP M emissio nstandard s wer e publishe di n th e Federa l Registe r

o nJul y 6,198 9 (5 4 FR28447)

. Th e nationa l averag e sulfu r conten t o f distillat e fue l oi l i s abou t 0. 3 weigh t percent , whic hi s equivalen t t o 0. 3 l b SO 2 pe r millio nBtu

. Consequently , a n SO 2 emissio nrat e o f

0. 3 lb/millio nBt u wa s use dt o distinguis hver y lo w sulfu r fue l oil , suc ha s distillat e fue l oil , fro m highe r sulfu r fue l oi l i nth e analyse s supportin g proposa l an dpromulgatio no f th e standard s limitin g SO 2 emission s fro moil-fire dindustrial-commercial

institutiona l stea mgeneratin g unit s wit h hea t inpu t capacitie s greate r

tha n2 9 M W(10 0 millio nBtu/hour)

. A revie w o f

Departmen t

o f Energ y data , however , indicate dtha t th e sulfu r conten t o f distillat e fue l oi l i s highl y variable

. Althoug hth e nationa l averag e sulfu r conten t o f distillat e fue l oi l i s abou t 0. 3 weigh t

percent , th e actua l sulfu r conten t o f a nindividua l shipmen t ca nrang e fro ma s lo w a s 0. 1 weigh t percen t t o a s hig ha s 0. 5 weigh t percen t dependin g o nsuc hfactor s as : (1 ) Th e seaso no f

th e year , (2 ) th e geographi c location , (3 ) th e crud e oi l fro mwhic hth e distillat e fue l oi l i s refined , an d(4 ) th e exten t t o whic hdesulfurizatio no r blendin g i s use dt o produc e distillat e fue l oi l a t

th e refinery

. Th e maximu msulfu r

conten t o f distillat e fue l oi l i s limite dt o 0. 5 weigh t percen t throug hfue l oi l specification s adopte db y th e America nSociet y fo r Testin g an dMaterial s (ASTM)

. I n producin g adistillat e fue l oi l produc t fo r sale , refinerie s mee t

o r excee dthes e specifications

. Th e us e an dacceptanc e o f thes e AST M specification s i s s o widesprea dtha t

th e actua l sulfu r conten t o f ashipmen t

o f distillat e fue l oi l i s frequentl y no t

reported

. I nligh t o f th e variabilit y i nth e sulfu r conten t o f distillat e fue l oi l an dth e presenc e o f

widel y accepte dAST M specification s limitin g th e sulfu r conten t o f distillat e fue l oil , i t

seeme d appropriat e t o defin e ver y lo w sulfu r fue l oi l b y th e maximu msulfu r conten t o f distillat e fue l oi l a s specifie db y AST M rathe r

tha nb y th e nationa l averag e sulfu r

content

. Th e promulgate dstandard s fo r oil

fire dstea mgeneratin g unit s limi t PM

. emission s t o 4 3 ng/ J (0.1 0 lb/millio n Btu)

. However , firin g ver y lo w sulfu r fue l oil s capabl e o f

meetin g th e SO a emissio nlimi t

discusse dabov e resul t i n P M emission s o f

4 3 ng/ J (0.1 0 lb/millio n Btu ) o r less

. Thus , fo r

thos e oil-fire d unit s whic hfir e ver y lo w sulfu r oil , th e impositio no f

th e promulgate dP M emissio nlimi t

achieve s n o additiona l P M emissio nreduction s beyon dtha t achieve db y SOj standards

. O nth e othe r hand , th e P M emissio nlimi t impose s additiona l cost s du e t o th e emissio nsourc e testin g requirement s associate dwit hth e emissio nlimit

. Therefore , i t

di dno t see mreasonabl e t o requir e stea mgeneratin g unit s firin g ver y lo w sulfu r

oi l t o mee t

th e P M emissio nlimit

. Publi c comment s wer e solicite do nth o propose drevisions

. Eleve ncomment s wer e received

. Th e commenter s include dsi x utilit y companies , tw o chemica l companies , on e pape r company , on e oi l company , an don e Stat e agency
. N o objection s t o th e amendment s wer e raised

. Al l commenter s expresse dsuppor t fo r th e propose damendments

. Tw o commenter s state dtha t th e propose d amendment s ar e consisten t wit hth e commenters ' experience

. On e commente r

state dthat , whil e th e proposa l i s base do nth e AST M specificatio no f

0. 5 weigh t

percen t sulfur , ver y lo w sulfu r

fue l oi l i s stil l define di nterm s o f

lb/millio nBtu

. Th e commente r

state dtha t

percen t sulfu r an dlb/millio nBtu ar e no t exactl y equa l i nal l case s an drecommende dthu t th e definitio nb e clarifie ds o tha t fue l oil s wit h0. 5 weigh t

percen t sulfu r mee t th e definitio no f

ver y lo w sulfu r

fue l oil

. Fo r th e reason s state db y th e commenter , th e definitio nof

ver y lo w sulfu r

fue l oi l ha s bee nclarifie dt o includ e fue l oil s whic hcontai n0. 5 weigh t percen t sulfu r o r less

. On e commente r

state dthat , sinc e th e definitio no f

ver y lo w sulfu r

fue l oi l i s based ' o nth e widel y accepte dAST M specificatio nfo r

distillat e fue l oil , ther e shoul db e n o nee dt o furthe r demonstrat e throug hperformanc e testin g an dmonitorin g tha t AST M distillat e oi l meet s th e standard

. Therefore , distillat e oi l tha t meet s th e AST M specification s ha s bee n exempte dfro mperformanc e testin g an d monitorin g requirement s i nth e final standards

. On e commente r

questione dwhethe r th e amendment s appl y t o source s whic h commence dconstructio nbetwee nth e origina l proposa l dat e (Jun e 19,1980 ) an dth e dat e o f

th e propose drevision s (Jul y 8,1989)

. Thes e revise dstandard s appl y t o al l unit s whic hcommence d constructio nafte r

Jun e 19,1986

.P. 4

Registe r / Vol

. 54 , No

. 24 1 /

Monday , Decembe r 18 , 198 9 /

Rule s an dRegulation s

Th e docke t

i s a norganize dan d complet e fil e o f

al l th e informatio n considere di nth e developmen t o f thi s rulemaking

. Th e docke t i s adynami c fil e becaus e materia l i s adde dthroughou t th e rulemakin g development

. Th e docke t syste mi s intende dt o allo w member s o f th e publi c an dindustrie s involve dt o identif y an dlocat e document s s o tha t the y ca neffectivel y participat e i nth e rulemakin g process
. Alon g wit hth e statemen t

o f th e basi s an dpurpos e o f th e propose dan dpromulgated , amendment s t o th e NSPS , th e content s o f th e docket , excep t

fo r interagenc y revie w materials , wil l serv e a s th e recor di ncas e o f

judicia l revie w (se e Clea nAi r

Act , sectio n307(d)(7)(A) , 4 2 U.S.C

. 7607(d)(7)(A))

. Sectio n317(a ) o f

th e Clea nAi r

Act , 4 2 U.S.C

. 7617(a ) state s tha t economi c impac t assessment s ar e require dfo r revision s t o standard s o r regulation s whe nth e Administrato r determine s suc h revision s t o b e substantial

. Thes e revision s ar e no t

substantial ; a s aresult , a neconomi c impac t

assessmen t

ha s no t bee nprepared

. Paperwork

Reduction Act Th e informatio ncollectio n requirement s previousl y approve db y OM B fo r th e Industrial-Commercial

Institutiona l Stea mGeneratin g Uni t NSP S (4 0 CFRpar t

6 0 subpar t

Db ) remai nunchange da s aresul t o f today' s promulgate damendment

. Unde r Executiv e Orde r

12291 , EP A i s require dt o judg e whethe r aregulatio ni s a"majo r rule " an dtherefor e subjec t t o th e requiremen t

o f aregulator y impact , analysi s (RIA)

. Thes e amendment s woul dresul t

i nnon e o f

th e significan t advers e economi c effect s se t fort hi n sectio n1(b ) o f

th e Orde r

a s ground s fo r findin g aregulatio nt o b e a"majo r rule. " Th e amendment s ar e no t substantial.

. Therefore , thi s actio ni s no t a"majo r rule " unde r

Executiv e Orde r

12291

. Th e Regulator y Flexibilit y Ac t o f 1980 , 5 U.S.C

. 601-612 , require s th e identificatio nof

potentiall y advers e impact s o f

Federa l regulation s upo n smal l busines s entities

. Th e Ac t require s th e completio no f

a-regulator y flexibilit y analysi s fo r

ever y rul e unles s th e Administrato r

certifie s tha t

th e rul e wil l no t hav e asignifican t

economi c impac t o nasubstantia l numbe r o f smal l entities

. Pursuan t

t o th e provision s o f

5 U.S.C

. 605(b) , th e Administrato r certifie s tha t th e fina l rul e wil l no t

hav e a significan t

economi c impac t

o na substantia l numbe r

o f smal l entities

. Th e revise drul e woul dreduc e th e burde no n thi s sourc e category , an di t ha s alread y bee ndetermine dthat , i nth e absenc e o f thes e revisions , th e standard s woul dno t affec t asubstantia l numbe r

o f smal l entitie s (5 2 F R47841 , Decembe r 16 , 1987)

. Lis t o f Subject s is i 4 0 CF RPar t 6 0 Ai r pollutio ncontrol , Incorporatio nb y reference , Intergovernmenta l relations , Reportin g an drecordkeepin g requirements

. Dated : December

1,1989

. Willia mK

. Reilly , Administrator. PAR TSO—STANDARD S O F PERFORMANC E FO R NE W STATIONAR YSOURCE S 1

. Th e authorit y citatio nfo r par t 6 0 continue s t o rea da s follows : Authority : 42 U.S.C

. 7411 , 7414 , an d7601(a)

. 2

. Sectio n60.41 b i s amende db y revisin g th e followin g definition : § 60.411 b Definitions

. 4 ft

ft ft ft "Ver y lo w sulfu r

oil " mean s a noi l tha t contain s n o mor e tha n0. 5 weigh t percen t sulfu r o r that , whe ncombuste d withou t sulfu r dioxid e emissio ncontrol , ha s asulfu r

dioxid e emissio nrat e equa l t o o r les s tha n21 5 ng/ J (0. 5 lb/millio n Btu ) hea t input

.
« A« 4 « 3

. Sectio n60.42 b i s amende db y revisin g th e first

phras e o f

paragrap h (a) , an db y revisin g paragraph s (d) , (e ) an d(f) , an db y addin g paragrap h(j ) t o rea da s follows : § 80.42 b Standar dfo r

sulfur dioxide

. (a ) Excep t

a s provide di nparagraph s (b) , (c),(d) , o r

(j ) o f thi s section , * * * * * * * * (d ) O nan dafte r

th e dat e o nwhic hth e performanc e tes t

i s complete do r require dt o b e complete dunde r 60. 8 o f thi s part , whicheve r

come s first , n o owne r o r operato r o f a naffecte dfacilit y liste di nparagraph s (d ) (1) , (2) , o r (3 ) o f thi s sectio nshal l caus e t o b e discharge d int o th e atmospher e an y gase s tha t contai nsulfu r

dioxid e i nexces s o f

52 0 ng/ J (1. 2 lb/millio nBtu ) hea t inpu t i f th e affecte dfacilit y combust s coal , o r 21 5 ng/ J (0. 5 lb/millio nBtu ) hea t inpu t if th e affecte dfacilit y combust s oi l othe r tha n ver y lo w sulfu r

oil

. Percen t

reductio n requirement s ar e no t

applicabl e t o affecte dfacilitie s unde r thi s paragraph

. (1 ) Affecte dfacilitie s tha t hav e a n annua l capacit y facto r

fo r coa l an doi l o f 3 0 percen t

(0.30 ) o r les s an dar e subjec t t o aFederall y enforceabl e permi t limitin g th e operatio no f th e affecte d facilit y t o a nannua l capacit y facto r fo r coa l an doi l o f

3 0 percen t

(0.30 ) o r less ; (2 ) Affecte dfacilitie s locate di na

noncontinenta l area ; o r (3 ) Affecte dfacilitie s combustin g coa l o r oil , alon e o r

i ncombinatio nwit han y othe r fuel , i naduc t

burne r a s par t o f a combine dcycl e syste mwher e 3 0 percen t (0.30 ) o r les s o f th e hea t inpu t t o th e stea mgeneratin g uni t i s fro m combustio no f

coa l an doi l i nth e duc t burne r an d7 0 percen t

(0.70 ) o r mor e o f th e hea t inpu t t o th e stea mgeneratin g uni t i s fro mth e exhaus t

gase s enterin g th e duc t burner

. (e ) Excep t

a s provide di nparagrap h(f j o f thi s section , complianc e wit hth e emissio nlimits , fue l oi l sulfu r limits , and/o r percen t reductio nrequirement s unde r thi s sectio nar e determine do na 30-da y rollin g averag e basis

. (f ) Excep t a s provide di nparagrap h (j)(2 ) o f thi s section , complianc e wit hth e emissio nlimit s o r

fue l oi l sulfu r

limit s unde r thi s sectio ni s determine do na 24

- hou r averag e basi s fo r

affecte dfucilitle e tha t (1 ) hav e aFederall y enforceabl e permi t limitin g th e annua l capacit y facto r fo r oi l t o 1 0 percen t

o r less , (2 ) combus t onl y ver y lo w sulfu r

oil , an d(3 J d o no t combus t an y othe r

fuel

. * * * * * (j ) Percen t

reductio nrequirement s ar e no t applicabl e t o affecte dfacilitie s combustin g onl y ver y lo w sulfu r oil

. Th o owne r o r operato r o f a naffecte dfacilit y combustin g ver y lo w sulfu r oi l shal l demonstrat e tha t

th e oi l meet s th e definitio no f

ver y lo w sulfu r

oi l by : (1 ) Followin g th e performanc e testin g procedure s a s describe di n§ 6Q.45b(c ) o r § 60.45b(d) , an dfollowin g th e monitorin g procedure s a s describe di n § 60.47b(a ) o r

%60.47b(b ) t o determin e sulfu r dioxid e emissio nrat e o r fue l oi l sulfu r content ; o r

(2 ) maintainin g fue l receipt s a s describe di n§ 60.49b(r)

. 4

. Sectio n60.43 b i s amende db y revisin g paragraph s (b ) an d(f ) t o roc d a s follows : § 80.43 b Standar d fo rparticulat e matter

. * * * * • * (b ) O nan dafte r

th e dat e o nwhic hth s performanc e tes t

i s complete do r require dt o b e complete dunde r 60. 0 o f thi s part , whicheve r

dat e come s first, n o owne r o r operato r o f a naffecte dfacilit y tha t combust s oi l (o r

mixture s o f

oi l wit h othe r fuels ) an duse s aconventiona l ov emergin g technolog y t o reduc e sulfu r dioxid e emission s shal l caus e f o b o discharge dint o th e atmospher e fro m tha t affecte dfacilit y an y gase s tha t contai nparticulat e matte r i nexces s o f 4 3 ng/ J (0.1 0 lb/millio nBtu ) hea t input

. a * o a a (f ) O nan dafte r

th e dat e o nwhic hth o initia l performanc e tes t i s complete do r i s require dt o b e complete dunde r 30. 0 o fP. 5 

# V 5182 0 Federa l Registe r/ Vol . 54 , No . 24 1 /

Monday , Decembe r18 , 198 9 / Rule s an d Regulation s
thi s part , whicheve rdat e come s first , n o owne ro roperato ro f

a n affecte d facilit y tha tcombust s coal , oil , wood , o r mixture s of

thes e fuel s wit h an y othe r fuel s shal l caus e to b e discharge d int o th e atmospher e an y gase s tha texhibi t greate rtha n 2 0 percen topacit y (6
- minut e average) , excep tfo ron e 6-minut e perio d pe rhou rof

no tmor e tha n 2 7 percen topacity
. * * * * * 5
. Sectio n 60.45 b i s amende d b y revisin g paragrap h (d ) introductor y tex t an d addin g paragrap h (j ) to rea d a s follows : § 60.45 b Complianc

e an d performanc

e tes t methods an d procedure s fo r sulfu r dioxide

. 

### * * * * * (d ) Excep ta s provide d i n paragrap h (j) , th e owne ro roperato ro f a n affecte d facilit y tha tcombust s onl y ver y lo w sulfu roil , ha s a n annua l capacit y facto r fo roi l o f 1 0 percen t(0.10 ) o rless , an d i s subjec tto aFederall y enforceabl e requiremen tlimitin g operatio n o f th e affecte d facilit y to a n annua l capacit y facto rfo roi l o f

1 0 percen t(0.10 ) o rles s shall : * * * * * * * * (j ) Th e owne ro roperato ro f a n affecte d facilit y tha tcombust s ver y lo w sulfu roi l i s no tsubjec tt o th e complianc e an d performanc e testin g requirement s o f

thi s section-i f

th e owne r o roperato robtain s fue l receipt s a s describe d i n § 60.49b(r)
. 6
. Sectio n 60.46 b i s amende d b y revisin g paragrap h (d ) introductor y tex t t o rea d a s follows : § 60.46 b Complianc

e an d performanc

e tes t methods an d procedure s fo r particulat e matte r an d nitroge n oxides

. * * ••« (d ) T o determin e complianc e wit h th e particulat e matte remissio n limit s an d opacit y limit s unde r§ 60.43b , th e owne r o roperato ro f

a n affecte d facilit y shal l conduc ta n initia l performanc e tes ta s require d unde r§ 60. 8 usin g th e followin g procedure s an d referenc e methods : * * * * * * * * 7 . Sectio n 60.47 b i s amende d b y revisin g th e firs tphras e o f paragrap h (a ) an d b y addin g paragrap h (f ) t o rea d a s follows : § 60.47 b Emission monitorin g fo r sulfu r dioxide

. (a ) Excep ta s provide d i n paragraph s (b ) an d (f

) o f thi s section
. * * *

* ft ft ft 4 (f ) Th e owne ro roperato ro f a n affecte d facilit y tha tcombust s ver y lo w sulfu roi l i s no tsubjec tt o th e emissio n monitorin g requirement s o f thi s sectio n if

th e owne ro roperato robtain s fue l receipt s a s describe d i n § 60.49b(r)
. 8
. Sectio n 60.49 b i s amende d b y addin g paragrap h (r

) to rea d a s follows : § 60.49 b Reportin g an d recordkeepin g requirements

. * * * * * (r ) Th e owne ro roperato ro f a n affecte d facilit y wh o elect s to demonstrat e tha tth e affecte d facilit y combust s onl y ver y lo wsulfu roi l unde r § 60.42b(j)(2 ) shal l obtai n an d maintai n a tth e affecte d facilit y fue l receipt s from th e fue l supplie rwhic h certif y tha tth e oi l meet s th e definitio n o f distillat e oi l a s define d i n § 60.41b
. Fo rth e purpose s o f thi s section , th e oi l nee d no tmee tth e fue l nitroge n conten tspecificatio n i n th e definitio n o f

distillat e oil
. Quarterl y report s shal l b e submitte d t o th e Administrato rcertifyin g tha tonl y ver y lo wsulfu roi l meetin g thi s definitio n wa s combuste d i n th e affecte d facilit y durin g th e precedin g quarter . [F RDoc . 89-2869

2 Filed 12-15-«9 ; 8:4

5 am] BILLIN G COD E 6560-50- M

ENVIRONMENTA L PROTECTIO N AGENC Y 4 0 CF R Part 6 0 [AD-FR L 3647-8 ] Standard s o fPerformanc e fo r Ne w Stationary Sources ; Industrial Commercia l Institutiona l Stea m Generatin g Units ; Amendment s t o Nitroge n Oxide s Performanc e Testin g an d Monitorin g Requirement s AGENCY : Environmenta l Protectio n Agenc y (EPA)
. ACTION : Fina l rule . SUMMARY : Thi s fina l rul e adopt s amendment s to th e performanc e testin g an d monitorin g requirement s fo r nitroge n oxide s (N O J applicabl e t o industrial-commercial-institutiona l stea m generatin g unit s wit h hea tinpu t capacitie s greate rtha n 7 3 M W (25 0 millio n Btu/hour ) tha tfire natura l gas , distillat e oil , an d lo w nitroge n residua l oi l an d tha toperat e a tver y lo wannua l capacit y factor s (i.e., les s tha n 1 0 percent)
. In addition , today' s promulgate d rul e exempt s from th e NO , emissio n limi tan d th e NO , performanc e testin g an d monitorin g requirement s an y stea m generatin g unit s wit h hea tinpu t capacitie s o f

7 3 M W (25 0 millio n Btu / hour ) o rles s tha tfire natura l gas , distillat e oil , an d lo wnitroge n residua l oi l an d tha toperat e a tver y lo wannua l capacit y factor s (i.e. , les s tha n 1 0 percent)
. Thes e amendment s wer e propose d o n January 13,198 9 (5 4 F

R1606 ) i n respons e t o petition s fo rreconsideratio n o f th e origina l rul e promulgate d o n Novembe r 25,190 6 (5 1 F

R42768)
. Severa l comment s wer e submitte d o n th e propose d amendments , an d mino r change s ar e bein g incorporate d t o th e amendment s t o clarif

y th e performanc e testin g an d monitorin g procedures . PATE Tun

e 19,1984
. unde rsectio n 307(b)(1 ) o f

th e Clea n Ai rAct , judicia l revie wo f

th e action s take n b y thi s notic e i s availabl e onl y b y th e filin g o f a petitio n fo rrevie wi n th e U.S
. Courto f Appeal s fo rth e Distric to f Columbi a Circui twithi n 6 0 day s o f today' s publicatio n o f

th e rule . Unde rsectio n 307(b)(2 ) o f

th e Clea n Ai rAct , th e requirement s tha tar e th e subjec to f today' s notic e ma y no tb e challenge d late ri n civi l o rcrimina l proceeding s brough tb y EPA t o enforc e thes e requirements
. Incorporation by Reference: Th e incorporatio n b y referenc e o f certai n publication s i n thes e standard s i s approve d b y th e Directo ro f th e Offic e o f th e Federa l Registe ra s o f Decembe r18 , 1989
. ADDRESSES : Docket. Docke tNumbe rA
79-02 , containin g supportin g informatio n use d i n developin g th e final rule , i s availabl e fo rpubli cinspectio n an d copyin g betwee n 8:3 0 a.m . an d 3:3 0 p.m. , Monda y throug h Friday , a tEPA' s Ai r Docket , roo m M1500 , firstfloor , Watersid e Mall , 401 M Stree tSW. , Washington , D C 20460
. A reasonabl e fe e ma y b e charge d fo rcopying
. FO R FURTHE

R INFORMATION CONTACT : Mr. Ric kCoplan d ((919 ) 541-5265 ) o rMr. Fre d Porte r((919 ) 541-5251) , Standard s Developmen tBranch , Emissio n Standard s Divisio n (MD-13) , U.S
. Environmenta l Protectio n Agency , Researc h Triangl e Park , North Carolin a 27711
. SUPPLEMENTAR

YINFORMATION : I . Backgroun d O n Novembe r25,1986 , standard s o f performanc e wer e promulgate d limitin g . emission s o f

particulat e matte r(PM) an d NO , fro m industrial-commercial
institutiona l stea m generatin g unit s wit h hea tinpu tcapacitie s greatertha n 2 9 M W (10 0 millio n Btu/hour ) (5 1 F R 42768)
. Th e Utilit y Ai rRegulator y Grou p (UARG ) an d owner s o f th e Willia m H . Zimme rGeneratin g Statio n (Cincinnati Ga s an d Electri cCompany, Columbu s an d Souther n Ohi o Electri cCompany , an d th e Dayto n Powe ran d Light Company ) requeste d reconsideratio n o f th e rul e unde rsectio n 307(d)(7)(B ) o f th e