I EPA ATTACHMENT NO. Jb 

OFFICE OF THE SECRETARY OF STATE 

JESSE WHITE • Secretary of State 

August 5, 2013 

POLLUTION CONTROL BOARD 

JOHN THERRIAULT ASSIST ANT CLERK 

100 WRANDOLPH ST, STE 11-500 

CHICAGO, IL 60601 

Dear JOl-IN THERRIAULT ASSISTANT CLERK 

s:;;J !'::: •1"'- ~~ n v· """ - " a~,.,s~,..r;....!.f tl';;;.~ 

CLERK'S OFFICE 

t•.UG 0 7 2U13 

STATE OF ILLINOIS 

Pollution Control Board 

Yom rules Listed below met our codification standards and have been published in Volume 37, 

Issue 32 of the Illinois Register, dated 8/9/2013. 

ADOPTED RULES 

Air Quality Standards 

35 Ill. Adm. Code 243 !2882 

Point of Contact: Mike McCambridge 

If you have any questions, you may contact the Administrative Code Division at 

(217) 782-7017. 

Index Department- Administrative Code Division- 111 East Monroe Springfield, IL 62756 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

1) Heading of the Part: Air Quality Standards 

2) Code citation: 35 ill. Adm. Code 243 

3) Section numbers: 

243.101 

243.102 

243.103 

243.104 

243.105 

243.106 

243.107 

243.108 

243.120 

243.122 

243.123 

243.124 

243.125 

243.126 

243.Appendix A 

243.Appendix B 

243.Appendix C 

243.TableA 

Adopted action: 

Amend 

Amend 

Amend 

Repeal 

New Section 

Repeal 

Amend 

Amend 

Amend 

Amend 

Amend 

Amend 

Amend 

Amend 

Repeal 

Repeal 

Repeal 

New Section 

4) Statutory authority: 415 ILCS 5/7.2, 10, and 27. 

5) Effective date of amendments: JUL 2 9 Z013 

6) Does this rulemaking contain an automatic repeal date? No. 

7) Do these an1endments contain incorporations by reference? Yes. All incorporations by 

reference are centrally located in Section 243.108 for the purposes of all provisions in 

Part 243. The present amendments remove existing incorporations by reference and add 

new incorporations by reference. 

8) Statement of availabilitv: The adopted amendments, a copy ofthe Board's opinion and 

order adopted July 25, 2013 in docket Rl3-ll, and all materials incorporated by 

reference are on file at the Board's principal office and are available for public inspection 

and copying. 

RECEIVED 

JUL 2 fl 2013 

· SOS-CODE Dill, 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

9) Notice of proposal published in the Illinois Register: May 16, 2013, 37 Ill. Reg. 7316 

1 0) Has JCAR issued a statement of objections to these rules? No. Section 1 O(H) of the 

Environmental Protection Act [415 ILCS 5/IO(H)] provides that Section 5-35 of the 

Administrative Procedure Act [5 ILCS 1 00/5-35] does not apply to this rulemaking. 

Because this rulemaking is not subject to Section 5-35 of the AP A, it is not subject to 

First Notice or to Second Notice review by the Joint Committee on Administrative Rules 

(JCAR). 

11) Differences between the proposal aad the final version: A table that appears in the 

Board's opinion and order of July 25, 2013 in docket R13-11 summarizes the differences 

between the amendments adopted in that order aad those proposed by the Board in an 

opinion and order dated May 16, 2013, in docket Rl3-ll. Many of the differences are 

explained in greater detail in the Board's opinion and order adopting the amendments. 

The differences are limited to corrections to the text of the rules, including removal of the 

1979 primary one-hour NAAQS for ozone, which applies to no area of Illinois, and 

several minor corrections prompted by JCAR review of the text. The changes are 

intended to have no substantive effect. The intent is to add clarity to the rules without 

deviation from the substance of the federal amendments on which this proceeding is 

based. 

12) Have all the changes agreed upon by the board and JCAR been made as indicated in the 

agreements issued by JCAR? Section 1 O(H) of the Environmental Protection Act [ 415 

ILCS 5/1 O(H)] provides that Section 5-35 of the Administrative Procedure Act [5 ILCS 

1 00/5-35] does not apply to this rulemaking. Because this rulemaking is not subject to 

Section 5-35 of the APA, it is not subject to First Notice or to Second Notice review by 

JCAR. 

Since the Notices of Proposed Amendments appeared in the May 31, 2013 issue of the 

Illinois Register, the Board received a number of suggestions for revisions from JCAR. 

The Board evaluated each suggestion and incorporated a number of changes into the text 

as a result, as detailed in the opinion and order of July 25, 2013 in docketRJ3-ll, as 

indicated in item 11 above. See the July 25, 2013 opinion and order in docket R13-ll for 

additional details on the JCAR suggestions aad the Board actions with regard to each. 

One table in that opinion itemizes the changes made in response to various suggestions. 

Another table indicates JCAR suggestions not incorporated into the text, with a brief 

explanation for each. 

13) Will these amendments replace emergency amendments currently in effect? No. 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

14) Are there any other amendments pending on this Part? No. 

15) Summary and puroose of amendments: The following briefly describes the subjects and 

issues involved in this rulemaking. A comprehensive description is contained in the 

Board's opinion and order ofMay 16,2013, adopting amendments in docket R13-11, 

which opinion and order is available from the address below. 

The Rl3-ll proceeding relates to the Illinois ambient air quality requirements in 35 Ill. 

Adm. Code 243 of the Illinois air pollution control rules. These amendments would 

update the lllinois ambient air quality requirements to correspond with the federal 

National Ambient Air Quality Standards (NAAQSs) that the United States Environmental 

Protection Agency (USEPA) adopted through December 31, 2012. The Federal NAAQS 

are codified at 40 C.P.R. 50. 

Tables appear in the Board's opinion and order of July 25, 2013 in docket Rl3-11 that 

list a limited number of corrections and amendments that are not based on current federal 

amendments. The tables contain deviations from the literal text of the federal 

amendments underlying these amendments, as well as corrections and clarifications that 

the Board made in the base text involved. Persons interested in the details of those 

corrections and amendments should refer to the July 25, 2013 opinion and order in docket 

R13-ll. 

Section 1 O(H) of the Environmental Protection Act [ 415 ILCS 5/1 O(H)] provides that 

Section 5-35 ofthe Administrative Procedure Act [5 ILCS 100/5-35] does not apply to 

this rulemaking. Because this rulemaking is not subject to Section 5-35 of the APA, it is 

not subject to First Notice or to Second Notice review by the Joint Committee on 

Administrative Rules (JCAR). 

16) Information and questions regarding these adopted amendments shall be directed to: 

Please reference consolidated docket Rl3-Jl and direct inquities to the following person: 

Michael J. McCambridge 

Staff Attorney 

Illinois Pollution Control Board 

100 W. Randolph 11-500 

Chicago, IL 60601 

312-814-6924 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

Request copies of the Board's opinion and order ofluly 25, 2013 at 312-814-3620. 

Altematively, you may obtain a copy of the Board's opinion and order from the Intemet 

at http://www.ipcb.state.il.us. 

The full text of the adopted amendments begins on the next page: 
Section 

243.101 

243.102 

243.103 

243.104 

243.105 

243.106 

243.107 

243.108 

Section 

243.120 

243.121 

243.122 

243.123 

243.124 

243.125 

243.126 

ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

TITLE35: ENVIRONMENTAL PROTECTION 

SUBTITLE B: AIR POLLUTION 

CHAPTER I: POLLUTION CONTROL BOARD 

SUBCHAPTER 1: AIR QUALITY STANDARDS AND EPISODES 

PART243 

AIR QUALITY STANDARDS 

SUBPART A: GENERAL PROVISIONS 

Definitions 

Pream!JleScope 

Applicability 

Nondegradation {Repealed) 

Air Quality Monitoring Data Influenced by Exceptional Events 

Monitoring (Repealed) 

Reference Conditions 

Incorporations by Reference 

SUBPART B: STANDARDS AND MEASUREMENT METHODS 

PMw and PM2.s 

Particulates (Repealed) 

Sulfur Oxides (Sulfur Dioxide) 

Carbon Monoxide 

Nitrogen Oxides (Nitrogen Dioxide as Indicator) 

8 Hour Ozone 

Lead 

~endi-l!-243.APPENDIX A Rule into Section Table (Repealed) 

Appeneill 243.APPENDIX B Section into Rule Table (Repealed) 

Appeneix 243.APPENDIX C Past Compliance Dates (Repealed) 

243.TABLE A Schedule of Exceptional Event Flagging and Documentation Submission 

for New or Revised NAAQS 

AUTHORITY: Implementing Section Sections 7.2 and 10 and authorized by Section 27 of the 

Environmental Protection Act (Ill. Rev. Stat. 1991, eli. Ill 1/2, pars. 1010 ar.e 1027) [415 ILCS 

5/7.2. 10. and 271. 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

SOURCE: Adopted as Chapter 2: Air Pollution, Part III: Air Quality Standards, in R71-23,-4 

PCB 191, filed and effective April14, 1972; amended in R80-Jl, 4a PCB 125, at 6 Ill. Reg. 

5804, effective April22, 1982; amended in R82-12, at 7 Ill. Reg. 9906, effective August 18, 

1983; codifiedat7 Ill. Reg. 13630; amended inR91-35 at 16 Ill. Reg. 8185, effective May 15, 

1992; amended in R09-19 at 35 Ill. Reg. 18857, effective October 25, 2011; amended in R13-11 

at 37 Ill. Reg. , effective-------------' 

SUBPART A: GENERAL PROVISIONS 

Section 243.101 Definitions 

a) BJEeept as stated in this Part and ulliess a differelrt meaning of a tenn is clear lfom 

its eonteKt, the definitions oftenns used in this Part shall be tHe same as those 

used in tHe Bnvif8nmental Pf8teetion Aet [415 ILCS 5] (Aet). 

b) tJ-1 tenns that apj'lear in this Part ha'<e tbe definitions specified by 35 11!. Adm. 

Code 201 or 211. 

For the puruoses of this Part, terms listed below will have the meanings attributed to them in this 

Section. As used in this Part, all terms not defined in this Section will have the meaning given 

them by the Act: the CAA. incorporated by reference in Section 243.1 08; or 35 Ill. Adm. Code 

201.102. 

"Act" means the Environmental Protection Act [415 ILCS 5]. 

"Agency" means the Illinois Environmental Protection Agency. 

"Ambient air" means that portion of the atmosphere, external to buildings. to 

which the general public has access. 

"Clean Air Act" or "CAA" means the federal Clean Air Act 42 USC 7401 et. seq, 

as amended, incomorated by reference in Section 243.108. 

"Exceedance of a NAAQS" means one occurrence of a measured or modeled 

concentration that exceeds the specified concentration level of such NAAQS for 

the averaging period specified by the standard. 

"Exceptional event" means an event that fulfills all of the following criteria: 

The event affects air quality; 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

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The event is not reasonably controllable or preventable; 

TI1e event is caused by human activity that is unlikely to recur at a 

particular location or a natural event; and 

The event is determined by USEPA in accordance with 40 CPR 50.14 to 

be an exceptional event. 

An "exceptional event" does not include any of the following: 

Sta!mation of air masses or meteorological inversions: 

A meteorological event involving high temperatures or lack of 

precipitation; or 

Air pollution relating to source noncompliance. 

"Federal equivalent method" or "FEM" means a method for measuring the 

concentration of an air pollutant in the ambient air that US EPA has designated as 

an equivalent method pursuant to 40 CPR 53 and which is included in the List of 

Desi!mated Methods. including later updates, as incornorated by reference in 

Section 243.108: the term "federal equivalent method" does not include a method 

for which USEP A has cancelled or superseded an equivalent method desi!mation 

in accordance with 40 CPR 53.11 or 53.16. as reflected in the incornoration by 

reference in Section 243.108. 

BOARD NOTE: Derived from 40 CPR 50.1(f) (definition of "equivalent 

method"). 50.11Cd)C2) (parenthetical definition of"FEM"). and 53.1 (definition of 

"federal equivalent method"). The clause "including later updates" in tllis 

defmition is intended to exclude methods canceled by USEP A pursuant to 40 

CPR 53.11 or 53.16 for which the cancellation is included in the updates to List of 

Designated Methods incornorated by reference in Section 243.108. A federal 

designation of an FEM becomes effective upon publication of a notice in the 

Federal Register. A federal cancellation of an FEM becomes effective upon 

deletion from the listing ofFEMs. 

"Federal reference method" or "FRM" means a method of sampling and 

analyzing the ambient air for an air pollutant that USEPA has specified as a 

reference method in an appendix to 40 CPR 50. incomorated by reference in 

Section 243.1 08, or a method that USEP A has designated as a reference method 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

pursuant to 40 CPR 53 and which is included in List of Designated Methods, 

including later updates. incorporated by reference in Section 243.108: the term 

"federal reference method" does not include a method for which US EPA has 

cancelled or superseded a reference method designation in accordance with 40 

CFR 53.11 or 53.16. as reflected in the incomoration bv reference in Section 

243.108. 

BOARD NOTE: Derived from 40 CPR 50.l(f) (definition of"reference method") 

and 53.1 (definition of"federal reference method"). The clause "including later 

updates" in this definition is intended to include methods canceled by USEPA 

pursuant to 40 CPR 53.11 or 53.16 for which the cancellation is included in the 

updates to List of Designated Methods incorporated by reference in Section 

243.108. A federal designation of an PRM becomes effective upon publication of 

a notice in the Federal Register. A federal cancellation of an FRM becomes 

effective upon deletion from the listing ofFRMs or from an appendix to 40 CFR 

50. 

"Micrograms per cubic meter" or "ug/m3

" means one millionth(! o·6

) of a gram of 

a contaminant per cubic meter of ambient air. as measured and determined by the 

methods prescribed for that contaminant. 

BOARD NOTE: The Board added this definition and that for "milligrams per 

liter" (immediately below). 

"Milligrams per cubic meter" or "mg/m3

" means one thousandth (1 o·3

) of a gram 

of a contaminant per cubic meter of ambient air. as measured and determined by 

the methods prescribed for that contaminant. 

"National Ambient Air Quality Standard" or "NAAOS" means a standard 

established by USEP A that applies for outdoor air throughout the United States. 

BOARD NOTE: The Board added this definition. derived from the definition in 

"Terms of Environment Glossary, Abbreviations, and Acronyms" (December 

1997). EPA 175-B-97-001, atp. 30. USEPA has codified theNAAQS at40 CFR 

50, 

BOARD NOTE: The Board added this definition based on the definition in 

"Terms of Environment: Glossary, Abbreviations, and Acronyms" (December 

1997). document number EPA 175-B-97-001, USEP A, Office of 

Communications, Education, and Public Affairs, at p. 30. 

"Natural event" means an event in which human activity plays little or no direct 

causal role. 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

"Parts per billion" or "ppb" means the ratio of the parts of a specified contaminant 

to a billion parts of air by weight (1:1 0'9

). as measured and determined by the 

methods prescribed for that contaminant. 

BOARD NOTE: The Board added this definition and that for "parts per million." 

derived from the parentheticals in 40 CFR 50.4(a) and (b) and 50.17(a) and the 

definition of"parts per billion (ppb)/parts per million (ppm)" in "Terms of 

Environment: Glossarv. Abbreviations. and Acronvms" (December 1997). EPA 

175-B-97-001, at p. 34. 

"P.arts per million" or "ppm" means the ratio of the parts of a specified 

contaminant to a million parts of air by weight (1: 1 0'6

). as measured and 

determined by the methods prescribed for that contaminant. 

BOARD NOTE: The Board added this definition. derived from the parentheticals 

in 40 CFR 50.4(a) and (b) and 50.17(a} and the definition of"parts per billion 

(ppb)!parts per million (ppm)" in "Tenns of Environment: Glossary, 

Abbreviations. and Acronvms" (December 1997). EPA 175-B-97 -001. at p. 34. 

"PM 10" means particulate matter that has an aerodvnamic diameter less than or 

equal to a nominal 10 micrometers Cum). 

BOARD NOTE: The Board added this definition. derived from the parenthetical 

definition in 40 CFR 50.6(c). 

"PM,.~" means particulate matter that has an aerodvnamic diameter Jess than or 

equal to a nominal2.5 micrometers Cum). 

BOARD NOTE: The Board added this definition. derived from the parenthetical 

definition in 40 CFR 50.7Ca). 

"Traceable" means that a local standard has been compared and certified either 

directly or via not more than one intennediate standard. to a primary standard. 

such as aN ational Bureau of Standards Standard Reference Material CNBS SRMl. 

or a USEP A/NBS-approved Certified Reference Material {CRM). 

"USEP A" means the United States Environmental Protection Agency. 

BOARD NOTE: Derived from 40 CFR 50.1(c). The Board has used "USEPA" 

in text where US EPA has used "Administrator," where action bv USEPA is 

clearly contemplated. Otherwise. the Board has retained the term "Agency" as 

defined in this Section. 

BOARD NOTE: Derived from 40 CFR 50.1 (2012). except as otherwise more specifically 

indicated. 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

Sections 243.101.243.120.243.122.243.123.243.124.243.125. and 

243.126. 

This reference includes the no Federal Register notices subsequent to 

December 17.2012 that updated List ofDesi!!llated Methods. 

BOARD NOTE: This document is available for free download as a PDF 

document from the USEP A, Tec!mologv Transfer. Ambient Monitoring 

Technology Infonnation Center website: http://www.epa.gov/ttn/amtic/ 

criteria.html. 

(Source: Amended at 37 Ill. Reg. ____ , effective _________ __./ 

SUBPART B: STANDARDS AND MEASUREMENT METHODS 

Section 243.120 PM10 and PM2.s 

a) 

b) 

c) 

Standards. The primary and secondary ambient air quality standards for P~{w.are 

a maximum 24 hour average concentration of 150 f!g/m;. The standares are 

attainee v;hea the enpeetee number of clays per calendar year with a 21 hour 

average coaeentration above 150 f!glm; is equal to or less than one, as measures 

an&-determined in aecoraanee ,,.ith &illlseetion (b). 

Measurement Method. For aetermining conformance with the P~{w.arabient a4r 

quality stanaaras, PMHJ shall be measured by the methoe Elescribee in 40 CFR 50, 

appencli7t J or an equivalent methoa Elesignated pursuant to 10 CPR 53 

(iacorporated by reference in Seetion 243.1 08). The stanaaras are attainea vthen 

the e1cpected Eumber of days per calendar year with a 21 hour avemge 

concentratioB above 150 f!g/m• is equal to orless than one, as determineel-iE 

aecorElaBce vlith 4 G CPR 5G, arpenElilt K (incorporated by mferenee in Section 

243.108). 

StandarEls. The primary and secondary ambient a4r quality standards for P~4H 

ilfffi 

1) An anaual arithmetic mean concentratioB of 15.0 f!Wm• ana as measured 

ana determined i1: conformance 'NHh subseetioB (El). 

2) A maJdmum 24 hour eonceBtration of35 f!§tm•, at the 98tll. pereentile 

value, and as measures and determines in conformance with subsection 

fdt, 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

a) Measurement Method for PM,.,.. Per aetermimag conformance with !he P~4; 

amllient air EJ:llality standards, P~4; shall be measured by the metheel described in 

4 0 CPR SO, appendiK L or an OEJ:llivalent method designated p:lffillent to 10 CFR 

53 (incoFJ3oratea by reference in Section 213.1 08). Compliance with the 

standards is determined asiag !he methods and procedures described in 40 CFR 

§.0,-appenaiJt J>l (incoFJ30fated-byreference in Section 2n.I08). 

I) The a!lffilal primary ana secondary PJl.4; standards are met '.'<'hen !;he 

annual arithmetic mean concentration, as determined in accordance with 

40 CPR 50, appendilt N, is less !han er eEJ:llal te 15.0 flg/rn\ 

2) The 21 hear primary ana secondary ~4. standards are met when the 

98th-percentile 24 hoer concentration, as determined in accordance with 

10 CFR SO, appendix N, is less than or eEJ:llal to 3S f1Wre'\ 

a) 1987 Primary and Secondary 24-Hour NAAOS for PM10, 

1) The level of the 1987 primary and secondary 24-hourNAAQS for PM10 is 

150 4g/m3

, 24-hour average concentration. The 1987 primary and 

secondarv NAAQS for PM10 is attained when the expected number of 

days yer calendar year with a 24-hour average concentration above 150 

uglm . as determined in accordance with appendix K to 40 CFR 50, 

incomorated by reference in Section 243.108, is equal to or less than one. 

2) This subsection (a)(2) corresponds with 40 CFR 51.6(b). a provision 

marked "reserved" by USEP A. This statement maintains structural 

consistency with the corresponding federal regulation. 

3) For the purpose of determining attaimnent of ibe 1987 primary and 

secondary 24-hour NAAQS for PM10, particulate matter must be measured 

in the ambient air as PM10 by a method that fulfills either of the following 

requirements: 

A) An FRM based on appendix J to 40 CFR 50, incomorated 

by reference in Section 243.108, and designated by US EPA 

and listed in List of Designated Methods, incomorated by 

reference in Section 243.1 08; or 
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POLLUTION CONTROL BOARD 

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B) An FEM designated by USEPA and listed in List of Designated 

Methods. incorporated by reference in Section 243.108. 

BOARD NOTE: This subsection (a) is derived from 40 CFR 50.6 

(2012). USEPA adopted 1997 primary NAAQS for PM10 at 62 Fed. Reg. 38652 

(July 18. 1997). As a result of a judicial vacatur. US EPA later removed the 

transitional provision relative to the 1987 NAAQS at 65 Fed. Reg. 80776 (Dec. 

22. 2000) and the 1997 NAAQS at 69 Fed. Reg. 45595 (July 30. 2004). Thus. the 

1987 primary and secondary NAAQS for PM10 are included in this subsection (a). 

b) 1997 Primary and Secondarv Annual Average and 24-Hour NAAQS for PMo.5• 

I) The 1997 primary and secondary annual average NAAQS for PMo5 is 

15.0 ug/m,_ annual arithmetic mean concentration. and the 1997 primary 

and secondary 24-hour NAAQS for PM, sis 65 ug/m3

• 24-hour average 

concentration. measured in the ambient air as PM;u by a method that 

fulfills either of the following requirements: 

A) An FRM based on appendix L of 40 CFR 50. incorporated by 

reference in Section 243.108, and designated by USEP A and listed 

in the List of Designated Methods. incorporated by reference in 

Section 243.108; or 

B) An FEM designated by USEPA and listed in the List of Designated 

Methods. incorporated by reference in Section 243.108. 

2) The 1997 primary and secondary annual average NAAQS for PMo.s is met 

when the annual arithmetic mean concentration. as determined in 

accordance with appendix N of 40 CFR 50. incorporated by reference in 

Section 243.108. is less than or equal to 15.0 ug/m3

• 

3) The 1997 primary and secondary 24-hour NAAQS for PM;u is met when 

the 98th percentile 24-hour concentration. as determined in accordance 

with appendix N of 40 CFR 50. incorporated by reference in Section 

243.1 08. is less than or equal to 65 ug/m3

. 

BOARD NOTE: This subsection (b) is derived from 40 CFR 50.7 (2012). The 

2006 primary and secondary annual average and 24-hour NAAQS for PM o.s 

differs from the 1997 standards in that the 24-hour average concentration required 

by the 2006 standard is substantially lower (more stringent) than that for the 1997 
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NOTICE OF ADOPTED AMENDMENTS 

standard. The Board has retained the 1997 standard in this subsection (b) because 

USEP A has retained the 1997 standard in 40 CFR 50.6. 

c) 2006 Primary and Secondary Annual Average and 24-Hour NAAQS for PM,.5• 

1) The 2006 yrimary and secondary annual average NAAQS for PMz.s is 

15.0 ug/m . a!LTlual anthmetrc mean concentration. and the 2006 primary 

and secondary 24-hour NAAQS for PM,.s is 35 ug/m3

, 24-hour average 

concentration. measured in the ambient air as PM,.s by a method that 

fulfills either of the following requirements: 

A) An FRM based on appendix L of 40 CFR 50, incorporated by 

reference in Section 243.108. and designated by US EPA and listed 

in the List of Designated Methods. incorporated by reference in 

Section 243.108; or 

B) An FEM designated by USEPA and listed in the List of Designated 

Methods. incorporated bv reference in Section 243.108. 

2) The 2006 primary and secondary annual average NAAOS for PM,.s is met 

when the annual arithmetic mean concentration, as determined in 

accordance with appendix N of 40 CFR 50. incorporated by reference in 

Section 243.108, is less than or egual to 15.0 ug/m3

• 

3) The 2006 primary and secondary 24-hour NAAOS for PM, 5 is met when 

the 98th percentile 24-hour concentration. as determined in accordance 

with appendix N of 40 CFR 50, incorporated by reference in Section 

243.108. is less than or equal to 35 ug/m3

• 

BOARD NOTE: This subsection (c) is derived from 40 CFR 50.13 (2012). 

(Source: Amended at 37 111. Reg. ___ _, effective ________ __J 

Section 243.122 Sulfur Oxides (Sulfur Dioxide) 

a) Primary Staadards. The primary ambieat air quality standanls feF sulfuF oxides 

measureEl as sulfur dioxide are: 

1) An aRnUa! aritbmetie mean eoncentration of 80 fl&'m• (0.03 ppm); and, 
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POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

2) A maximum 24 hoar concentration, nat to lie eJtceeded more than once 

per year, ef365 f!fim~ (0.11 ppm). 

e) Secondary Standard. The secondary ameient air EJ:eality standard for selfur oxides 

measered as sulfur dioxide is a mretimum 3 hoer concentration nat to be eKceeded 

more than once per year of 1,300 J±.o/m~--t\h-5-fljlffi). 

e) Measurement Method. For eetermiaing caafarmance with sulfur oxide air EJ:aality 

staaeards, sulfur mddes shall be-measured as sulfur clioxide ey the pararosaniliae 

method describes in 40 CFR 50, appendix A, (incorporated by refareace in 

Sectioa213 .1 08), or by an e(jllivalent method of proof approved ay fue Agency. 

a) 1971 Primary Annual Average and 24-Hour NAAOS for Sulfur Oxides (as Sulfur 

Dioxide (SOW,. 

1) The level of the 1971 primary annual average NAAOS for sulfur oxides is 

0.030 ppm. not to be exceeded in a calendar year. The annual arithmetic 

mean must be rounded to three decimal places (fractional parts equal to or 

greater than 0.0005 ppm must be rounded up). 

?) The level of the 1971 primary 24-hour NAAOS for sulfur oxides is 0.14 

oom. not to be exceeded more than once per calendar year. The 24-hour 

averages must be detennined from successive non-overlapping 24-hour 

blocks starting at midnight each calendar day and must be rounded to two 

decimal places (fractional parts equal to or greater than 0.005 ppm must be 

rounded up). 

3) Sulfur oxides must be measured in the ambient air as so, by the FRM 

described in appendix A-2 to 40 CFR 50. incorporated by reference in 

Section 243 .I 08, or by an FEM designated bv USEP A and listed in the 

List of Designated Methods. incorporated by reference in Section 243.108. 

4) To demonstrate attainment. the annual arithmetic mean and the secondhighest 24-hour averages must be based upon hourly data that are at least 

75 percent complete in each calendar quarter. A 24-hour block average 

must be considered valid if at least 75 percent of the hourly averages for 

the 24-hour period are available. In the event that only 18-. 19-, 20-. 21-, 

22-. or 23-hour averages are available, the 24-hour block average must be 

computed as the sum ofthe available hourly averages using the number of 

hours (i.e .. 18. 19. etc.) as the divisor. Ifless than 18-hour averages are 
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NOTICE OF ADOPTED AMENDMENTS 

available. but the 24-hour average would exceed the level of the standard 

when zeros are substituted for the missing values. subject to the rounding 

rule of subsection (b) of this Section. this must be considered a valid 24-

hour average. In this case. the 24-hour block average must be computed 

as the sum of the available hourly averages divided by 24. 

5) The 1971 primarv annual average and 24-hour NAAQS for sulfur oxides 

set forth in this subsection (a) remains applicable to all areas 

notwithstanding the promulgation of the 2010 primary one-hour NAAQS 

for sulfur oxides in subsection (c) of this Section. The Board will delete 

the 1971 primary annual average and 24-hour NAAQS for sulfur oxides 

set forth in this subsection (a) after fulfillment of the conditions recited by 

USEPA in corresponding 40 CFR 50.4(e). 

BOARD NOTE: Corresponding 40 CFR 50.4(e) recites that the 1971 

primarv NAAQS for sulfur oxides remains effective in two types of areas 

for which USEP A has not yet approved an implementation plan for 

attainment with the 2010 primary one-hour NAAQS for sulfur oxides. 

The first type of area is one that USEPA had designated as non-attainment 

for that standard as of the effective date of the 2010 primary one-hour 

NAAQS for the 1971 primary NAAOS for sulfur oxides as of the effective 

date ofthe 2010 NAAQS. That date was August 23. 2010. See 75 Fed. 

Reg. 35520 (June 22. 2010). As of that date. USEPA had not designated 

any area in Illinois as non-attainment. See 40 CFR 81.314 (2010). '111e 

Board is unaware of any US EPA SIP call for any area oflllinois relative 

to the 1971 primary NAAQS for sulfur oxides. As of December 31, 2012. 

US EPA had not yet designated the attainment status of areas in Illinois. 

See 40 CFR 81.314 {2012). The Agency recommended that USEP A 

designate limited areas of Illinois as non-attainment with the 2010 primary 

one-hour NAAQS. See letter of June 2. 2011 fi·om Laurel Kroack. Chief, 

Bureau of Air. Agency. to Cheryl A. Newton. Director. Office of the Air 

and Radiation Division. USEP A Region 5 (available at 

http://www.epa.gov/so2designations/recletters/ 

R5 IL rec wtechanalvsis.pdf). When the conditions of this subsection 

(a){5) have been fulfilled, or USEPA has removed 40 CFR 50.4, the Board 

will remove the standard of this subsection (a) as obsolete. 

BOARD NOTE: This subsection {a) is derived from 40 CFR 50.4 {2012). 

b) 1971 Secondary Three-Hour NAAOS for Sulfur Oxides Cas S021 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

1) The level of the 1971 secondary three-hour NAAOS for sulfur oxides is 

0.5 ppm, not to be exceeded more than once per calendar year. TI1e threehour averages must be detennined from successive non-overlapping threehour blocks starting at midnight each calendar day and must be rounded to 

one decimal place (fractional parts equal to or greater than 0.05 ppm must 

be rounded up). 

2) Sulfur oxides must be measured in the ambient air as so, by the FRM 

described in appendix A-2 to 40 CFR 50. incorporated by reference in 

Section 243.108. or bv an FEM designated by US EPA and listed in List of 

Designated Methods. incorporated by reference in Section 243.108. 

3) To demonstrate attainment. the second-highest three-hour average must be 

based upon hourly data that are at least 75 percent complete in each 

calendar quarter. A three-hour block average must be considered valid 

only if all three hourly averages for the three-hour period are available. If 

only one or two hourly averages are available. but the three-hour average 

would exceed the level of the standard when zeros are substituted for the 

missing values, subject to the rounding rule of subsection (b)(l) ofthis 

Section. this must be considered a valid three-hour average. In all cases. 

the three-hour block average must be computed as the sum of the hourly 

averages divided by three. 

BOARD NOTE: This subsection (b) is derived from 40 CFR 50.5 (2012). 

c) 2010 Primary One-Hour NAAQS for Sulfur Oxides (as S0•1 

1) The level of the 2010 primary one-hour NAAOS for sulfur oxides is 75 

ppb. measured in the ambient air as S0;1, 

2) The 2010 one-hour primary NAAQS for sulfur oxides is met at an ambient 

air quality monitoring site when the three-year average of the annual (99th 

percentile) of the daily maximum one-hour average concentrations is less 

than or equal to 75 ppb, as determined in accordance with appendix T of 

40 CFR 50. incorporated by reference in Section 243.108. 

3) The level of the 20 I 0 one-hour primary NAAOS for sulfur oxides must be 

measured by an FRM based on appendix A-1 or A-2 of 40 CFR 50, 

incorporated by reference in Section243.108, or by an FEM designated by 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

USEPA and listed in List ofDesi!mated Methods, incomorated by 

reference in Section 243.108. 

BOARD NOTE: This subsection (c) is derived from 40 CFR 50.17 (2012). The 

1971 primary NAAOS for SOo remains in effect until the federal conditions of 40 

CFR 50.4(e) have been fulfilled, as outlined in subsection (a)(5) of this Section 

and the appended Board note. 

(Source: Amended at 37 Ill. Reg. ____ , effective-----------' 

Section 243.123 Carbon Monoxide 

a) Standards. The ambient air EJ!la!ity standanls fer carbea monmride are: 

1) A maxiffillm 8 hom cenceatration net to be eKceedee mere than eace per 

year ef 1 0 milligrams per c!lbic meter (9 ppra); and, 

2) A maximllm 1 hellr concemration not to be exceedee more than onee-peF 

year of 40 milligrams per eubic meter (35 ppra). 

b) Measurement Method. Fer determining confermance with the carbon menmride 

air Ejllality standard, carben menoKiee shall be measllFed by the aendispersive 

infrared spectrometry tech:liEj:ie as described in 40 CFR 50, App. C (1982), 36 

Fed. Reg. 22,391, "November 25, 1971, or by an eEjaivalent-methed approved by 

the Agency. 

a) The 1971 eight-hour and one-hour primary NAAQS for carbon monoxide are as 

follows: 

1) An eight-hour average concentration of9 ppm (10 m!!lm\ not to be 

exceeded more than once per year: and 

2) A one-hour average concentration of35 ppm ( 40 mglm3

), not to be 

exceeded more than once per year. 

b) The levels of carbon monoxide in the ambient air must be measured bv a method 

that fulfills either of the following requirements: 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

I) An FRM based on appendix C of 40 CFR 50. incorporated by reference in 

Section 243. I 08. and designated by US EPA and listed in the List of 

Designated Methods. incorporated bv reference in Section 243.108: or 

2) An FEM designated by USEPA and listed in the List of Designated 

Methods. incornorated by reference in Section 243 .I 08. 

c) An eight-hour average concentration must be considered valid if at least 75 

percent of the hourly average for the eight-hour period is available. In the event 

that only six-hour (or seven-hour) averages are available. the eight-hour average 

must be computed on the basis of the hours available using six (or seven) as the 

divisor. 

d) When summarizing data for comparison with the standards. averages must be 

stated to one decimal nlace. Comparison of the data with the levels of the 

standards in ppm must be made in terms of integers with fractional parts of 0.5 or 

greater rounded up. 

BOARD NOTE: This Section is derived from 40 CFR 50.8 (2012). 

(Source: Amended at 37 Til. Reg. ____ , effective _________ __J 

Section 243.124 Nitrogen Oxides C'Htrogen Dioxide as Indicator) 

a) Standard. The ambient air quality standard for nitrogen dioxide is an armual 

arithmetie raeaR eoneeatratien of 100 raieregrams per sooie meter (0.05 ppm). 

ll) Measureraeat Methed. Fer determining ceaformance with tl!e aitregea siexide 

air quality standard; nitrogea dieldde shalllle raeasureally the eoleriraetric 

raetl!ea as descrilied ia 36 Fed. Reg. 22,396, November 25, 1971, erlly aa 

equivaleat rnethed-apJl~SJ" 

a) The level of the 1971 p1imary annual average NAAOS for nitrogen oxides is 53 

ppb. annual average concentration. measured in the ambient air as nitrogen 

dioxide (NOJ1 

b) The level of the 2010 primary one-hour NAAQS for nitrogen oxides is 100 ppb, 

one-hour average concentration. measured in the ambient air as NO,~ 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

c) The level of the 1971 secondary annual average NAAOS for nitrogen oxides is 

0.053 ppm (1 00 ltg/m3

). annual arithmetic mean concentration, measured in the 

ambient air as NO,. 

d) The levels of the standards in subsections (a) through (c) of this Section must be 

measured by: 

1) An FRM based on appendix F to 40 CFR 50. incorporated by reference in 

Section 243.108, and designated by US EPA and listed in the List of 

Designated Methods. incorporated by reference in Section 243.1 08; or 

2) By an FEM designated by USEP A and listed in the List of Designated 

Methods. incorporated by reference in Section 243.108. 

e) TI1e 1971 primary annual average NAAQS for nitrogen oxides in subsection (a) of 

this Section is met when the annual average concentration in a calendar year is 

less than or equal to 53 npb, as determined in accordance with appendix S of 40 

CFR 50. incorporated by reference in Section 243.108, for the annual standard. 

f) The 2010 one-hour primary NAAOS for nitrogen oxides in subsection (b) of this 

Section is met when the three-year average of the annual 98th percentile of the 

daily maximum one-hour average concentration is less than or equal to 100 ppb. 

as determined in accordance with appendix S of 40 CFR 50. incomorated by 

reference in Section 243.108. for the 1-hour standard. 

g) TI1e 1971 secondary annual average NAAOS for nitrogen oxides in subsection (c) 

of this Section is attained when the annual arithmetic mean concentration in a 

calendar year is less than or equal to 0.053 ppm. rounded to three decimal places 

(fractional parts equal to or greater than 0.0005 ppm must be rounded up). To 

demonstrate attainment. an annual mean must be based upon hourly data that are 

at least 75 percent complete or upon data derived from manual methods that are at 

least 75 percent complete for the scheduled sampling days in each calendar 

quarter. 

BOARD NOTE: This Section is derived from 40 CFR 50.11 (2012). 

(Source: Amended at 37111. Reg. ____ ,, effective _________ _, 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

(Source: Amended at 37 Ill. Reg. ___ ,, effective----------' 

Section 243.102 Pl'eamllle Scope 

a) Air quality standards are limits on atmospherie eoneentrations of air eontaminants 

established for the purpose ofproteeling publie health and welfare. The le'.'els of 

air quality designated by the standards are designed te protect against hljury to 

human, plant or anhnallife and they are further inteaded to allovi maximum 

eajoyment of life and property eonsistent with the intent ofthe Act. 

a) This Part sets forth the NAAOS adopted by USEPA under section 109 of the 

CAA (42 USC 7409) and incoroorated into this Part pursuant to 415 ILCS 5/7.2 

and lOCH). 

b) The first use of our air resourees is to sustain life. Air entering the respiratory 

traet !llllst net menace health. Therefore, the air quality standards set must, as a 

minimum, pro·.ide air 'Nhieh will not adversely affeet, through aeute or ehreaie 

S)'ffij3toms, the health of the cornmuaity. Adverse health effects include not only 

the possiBle produetien and aggravation of disease, but ruse iaterferenee with 

bodily functions. The standards ha-ve also taken into aecount soiling, corrosion, 

vegetation damage and other human effects. 

b) National primary ambient air quality standards (primary NAAOS) define levels of 

air quality that USEP A has judged are necessary, with an adequate margin of 

safety, to protect the public health. National secondary ambient air quality 

standards {secondary NAAQS) define levels of air qualitv that US EPA has judged 

necessary to protect the public welfare from any known or anticipated adverse 

effects of a pollutant. These standards are subject to revision, and additional 

primary and secondary NAAOS may be promulgated as USEP A deems necessary 

to protect the public health and welfare. 

c) Primary ambieat air EJ:Uruity standards define levels of air quality which are 

necessary, 'Nith an adequate margin of safety, to J3FOtect the puhlie-heal!ilr. 

Secondary ambient air quality standards define levels of air quality which are 

necessary to J3FOieet the public welfare from any lrnowa or anticipated adverse 

effects of a pollutant. 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

c) The promulgation of primarv and secondary NAAOS must not be considered in 

any manner to allow significant deterioration of existing air gualitv in any portion 

of this State. 

d) The standards are mere than goals. They are legally-enforceable limitatiens, and 

any person causing or contributing to a violation of the st;mdards is subject to 

enforcement fJffiCeedings m'!der the Act. The standards have also been designed 

for use as a basis fur the development of implementation plans by State and local 

agencies for the abatement and control efpollatant emissions from e~ 

sources, and for the determination of frir eontamin;mt emissioalimitatioas to 

iasure that flOpulatioa aad eeoaomic growth treads de net add to the region's air 

pollution problems. 

BOARD NOTE: Derived from 40 CFR 50.2 (2012). 

(Source: Amended at 37 TIL Reg. ___ _, effective---------' 

Section 243.103 Applicability 

The standards in this Part are applicahle-rumh..throughout the State of Illinois, except as 

otherwise provided in this Part. 

(Source: Amended at 37 Ill. Reg. ___ , effective---------' 

Section 243.104 Nondegradation (Repealed) 

ExistiRg aB'lbieat frir quality that is better than the established ambient air quality s!aRdards at the 

date eftHeir adoption will be mfrintained ia its present high quality. Such aB'lbient air quality 

shallaet be lowered ualess and uatil it is proved te the lllioois Eavironmental Proteetioa Ageacy 

(Ageaey) that the chaage is justifiable as a resalt of aecessary economic aml social develepment 

and will not interfure with or beeome iRjurious to human health or welfare. 

(Source: Repealed at 37 Ill. Reg. ___ _, effective----------' 

Section 243.105 Air Qualitv Monitoring Data Influenced by Exceptional Events 

a) Requirements. 

1) The Agency may request USEP A to exclude from use in determinations 

data showing an exceedance of an NAAOS that is directly due to an 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

exceptional event. The Agency must demonstrate to USEP A that the 

event caused a soecific air pollution concentration at a particular air 

qualitv monitming location. 

2) A demonstration to justify data exclusion may include any reliable and 

accurate data, but must demonstrate a clear causal relationship between 

the measured exceedance of an NAAQS and the event in accordance with 

subsection (c)(3)(D) of this Section. 

b) Determinations bv USEP A. USEP A has stated the criteria for making a 

detennination to exclude data as follow; 

1) Exceptional Events. USEP A has stated that it will exclude data from use 

in determinations of exceedance of an NAAQS where the Agency has 

demonstrated that an exceptional event caused a specific air pollution 

concentration in excess of one or more NAAQS at a particular air qualitv 

monitoring location. and the Agency otherwise satisfies the requirements 

of 40 CFR 50.14. 

2) Fireworks Displays. US EPA has stated that it will exclude data frDm use 

in determinations of exceedance of an NAAOS where the Agency has 

demonstrated that emissiDns from fireworks displays caused a specific air 

pollution concentration in excess of one or more NAAOS at a particular 

air quality monitoring location. and the State otherwise satisfies the 

requirements of 40 CFR 50.14. USEPA has stated that these data will be 

treated in the same mrumer as exceptional events under this Section. 

provided the Agency has demonstrated that the use of fireworks is 

significantly integral to traditional nationaL ethnic. or other cultural 

events. including, but not limited to July Fourth celebrations. which satisfy 

the requirements of 40 CFR 50.14. 

3) Prescribed Fires. USEPA has stated that it will exclude data from use in 

detenninations of exceedance of an NAAOS where the Agency has 

demonstrated that emissions from prescribed fires caused a specific air 

pollution concentration in excess of one or more NAAOS at a particular 

air quality monitoring location, and the Agency otherwise satisfies the 

requirements of 40 CFR 50.14, provided that the emissions are from 

prescribed fires that USEP A detennines meets the definition of 

"exceptional event" in Section 243 .I 0 I. and provided that the Agency has 

certified to US EPA that the State has adopted and is implementing a 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

Smoke Management Program (SMP) or the State has ensured that the 

burner emploved basic smoke management practices. If an exceptional 

event occurs using the basic smoke management practices aoproach. the 

Agency must undertake a review of the State's approach to ensure public 

health is being protected and must include consideration of development 

of an SMP. 

BOARD NOTE: In each of corresponding 40 CFR 50.14(b)(l), {b)(2). and (b)(3), 

USEP A stated "EPA shall exclude data from use in determinations of 

exceedances and NAAOS violations." In the first person. "shall" is used more to 

express present intent or to commit to future action. The Board has changed 

"EPA shall" to "USEPA has stated that it wilL" Further, the Board has relied on 

the defined term "exceedance of an NAAOS." 

c) Schedules and Procedures. 

!) Public notification. The Agency or. where the Agency has delegated 

authoritv pursuant to Section 4(g) or Cr) of the Act. the Agency's 

delegatee, must notify the public promptly whenever an event occurs or is 

reasonably anticipated to occur tlmt may result in tl1e exceedance of an 

NAAQS. 

2) Flagging of Data. 

A) The Agency must notify USEP A of the State's intent to exclude 

one or more measured exceedances of an NAAOS as being due to 

an exceptional event by placing a flag in the appropriate field for 

the data record of concern that has been submitted to the federal air 

quality system CAQS) database. 

B) Flags placed on data in accordance with this Section must be 

deemed informational only, and the data must not be excluded 

from detetminations with respect to an exceedance of an NAAQS 

unless and until USEPA notifies the Agency ofUSEPA 

concurrence following the Agency's submittal of a demonstration 

pursuant to subsection (c)(3) of this Section by placing a 

concurrence flag in the appropriate field for the data record in the 

AQS database. 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

C) Flags placed on data as being due to an exceptional event. together 

with an initial description of the event. must be submitted to 

USEP A not later than July 1 of the calendar year following the 

year in which the flagged measurement occurred. except as 

allowed under subsection (c)(2)CD) or (c)(2)(E) of this Section. 

Dl This subsection (c)(2)(D) corresponds with 40 CFR 

50.14(c)(2)(iv). which has expired by its own terms. This 

statement maintains structural consistency with the f-ederal 

regulations. 

E) This subsection (c)(2)(E) corresponds with 40 CFR 50.14(c)(2)(v). 

which lms expired by its own terms. This statement maintains 

structural consistency with the federal regulations. 

F) USEP A has stated that when USEP A sets a NAAQS for a new 

pollutant or revises the NAAQS for an existing pollutant. USEPA 

mav revise or set a new schedule for flagging exceptional event 

data. providing initial data descriptions. and providing detailed 

data documentation in AOS for the initial designations of areas for 

those NAAOS. Table A for this Part provides the existing 

schedule for submission of flags with initial descriptions in AOS 

and detailed documentation. These schedules apply for those data 

that will or may influence the initial designation of areas for those 

NAAQS. USEP A has stated that it will revise the table upon 

which Table A is based as necessary to accommodate revised data 

submission schedules for new or revised NAAOS. 

3) Submission of demonstrations. 

A) When the Agency has flagged data as being due to an exceptional 

event and is requesting exclusion of the affected measurement 

data. the Agency must. after notice and opportunity for public 

comment. submit a demonstration to USEP A to jnstify data 

exclusion not later than the sooner of three years following the end 

of the calendar quarter in which the flagged concentration was 

recorded or 12 months prior to the date that a regulatory decision 

must be made by USEP A. The Agency must submit to USEP A the 

public comments it received, along with its demonstration. 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

B) This subsection Cc)(3)(B) corresponds with 40 CFR 50.14(b)(3)(ii), 

which pertains only to a reporting period and owortnnity to 

demonstrate exceptions that has passed. This statement maintains 

structural consistency with the federal regulations. 

C) This subsection Cc)(3)(B) corresponds with 40 CFR 50.14(b)(3)(ii), 

which pertains only to a reporting period and opportunity to 

demonstrate exceptional events that has passed in a provision that 

has expired by its own terms. This statement maintains structural 

consistency with the federal regulations. 

D) The demonstration to justify data exclusion must provide the 

following evidence: 

i) That the event satisfies the definition of"exceptional 

event" set forth in Section 243.101; 

ii) That there is a clear causal relationship between the 

measurement under consideration and the event that is 

claimed to have affected the air gualitv in the area; 

iii) That the event is associated with a measured concentration 

in excess of normal historical fluctuations. including 

background; and 

iv) That there would have been no exceedance or violation but 

for the event. 

E) With the submission of the demonstration. the Agency must 

document that the public comment process was followed. 

BOARD NOTE: Derived from 40 CFR 50.14 (2012). 

(Source: Added at 37 Ill. Reg. ___ , effective ________ __/ 

Section 243.106 Monitoring (Repealed) 

Pollution levels wiR be-detennined by fiKed er mellile Saffij'lling statiens lleyonEI the preffiises-en 

v;hich a seurce is located. Stations willlle located according to the guildelines for estalllis!J.ed 

monitoring net\verlcs as developed lly the UIIited States Environmental Pretectien Agency. 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

(Source: Repealed at 37 Ill. Reg.----'' effective----------' 

Section 243.107 Reference Conditions 

All measurements of air quality that are expressed as mass per unit volume (e.g., micrograms per 

cubic meter, eJleept other than for particulate matter CPMz5) standards contained in Section 

243.120(b) and (c) and lead standards contained in Section 243.126(b), are corrected to a 

reference temperature of 25° _ C, and to a reference pressure of760 millimeters of mercury 

(1 013.2 millibars). Measurements ofPM2.

5, for pumoses of comparison to the standards 

contained in Section 243.120(b) and CcLand lead. measureme!!ts shall for pumoses of 

comparison to the standards contained in Section 243.126(b), must be reported based upon the 

actual ambient air volume measured at the actual temperature and pressure at the monitoring site 

during the measurement period. 

BOARD NOTE: Derived from 40 CFR 50.3 (2012). 

(Source: Amended at 37 TIL Reg. ___ _, effective ________ __) 

Section 243.108 Incorporations by Reference 

The following materials are incorporated by reference. These incorporations do not include any 

later amendments or editions: 

a) Pamresa£iline rnethes, 40 CFR 50, appendix A (1982). 

h) l>ffin E1ispersive infrru-eE1 speotromelry teohfli(j<~e, 40 CFR 50, appendiK C (1982), 

36 FeE1. Reg. 22391, 1>!9'rember 25, 1971. 

e) Co±orimeirie methoEl, 38 Fed. Reg. 22398, November 2§, 1971. 

d) Ozone ethylene Ieaetion methoEl, 10 CFR SQ, epp 

22392, November 25, 1971. 

e) Leas, 40 CFR 50, eppensilt G (2008). 

f) Referenee method for the Eleterrnination of particulate matter as PMw in the 

ttlmosphere, 40 CFR 50, eppeaE1ill J (1990). 
!LLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

g) Iffiefjlretation of the :National Ambient Air Qua-lity £tandaffis (Nfn'\Q£) fer 

partiewate matter, 40 CFR §0, aJ3peneix K; 73 Fee. Reg. 61141 (OetobeH-1, 

2006J. 

h) Refereace method fer the determiaation of particulate matter as P~4.;-in-the 

atmosj3here, 40 CFR 50, appendin L, 73 Fed. Reg. 61144 (October 17, 2006). 

i) Intefjlretatien of !he }!AAQ£ fer P~4.;, 40 CFR 50, apf>endix }!, 73 Fed. Reg. 

1497 (January 9, 2008). 

j) !atefjlretation ofthe NPu\Q£ fer 0~, 40 CFR 50, apj3endix P, 73 Fed. Reg. 16436 

(March 27, 2008). 

k) The 1>1AAQ£ fer Lead; Final Rule, 10 CFR 50, 51, 53, ane58, 73 Fee. Reg. 

66964 (November 12, 2008). 

l) Intefjlretation of the NAi\Q£ fer Lead, 10 CFR 50, appenein R, 73 Fed. Reg, 

66964 (1>1overnber 12, 2008). 

Government Printing Office (GPO), 732 Capitol Street NW. Washington. DC 

20401 (telephone: 202-512-1800 or 866-512-1800: website: www.gpo.gov). 

The following documents incorporated by reference are available from this 

source: 

Appendix A-1 to 40 CFR 50 (2012) (Reference Measurement Principle 

and Calibration Procedure for the Measurement of Sulfur Dioxide in the 

Atmosphere (Ultraviolet Fluorescence Method)). referenced in Section 

243.122. 

Appendix A-2 to 40 CFR 50 (2012) (Reference Method for the 

Determination of Sulfur Dioxide in the Atmosphere (Pararosaniline 

Method)), referenced in Section 243.122. 

Appendix B to 40 CFR 50 (2012) (Reference Method for the 

Determination of Suspended Particulate Matter in the Atmosphere (HighVolume Method)), referenced in appendix G to 40 CFR 50 (see below). 

Appendix C to 40 CFR 50 (2012) (Reference Measurement Principle and 

Calibration Procedure for the Measurement of Carbon Monoxide in the 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

Atmosphere (Non-Dispersive Infrared Photometry)). referenced in Section 

243.123. 

Appendix D to 40 CFR 50 (20 12) (Reference Measurement Principle and 

Calibration Procedure for the Measurement of Ozone in the Atmosphere), 

referenced in Section 243.125. 

Appendix F to 40 CFR 50 (2012) (Reference Measurement Principle and 

Calibration Procedure for the Measurement ofNitrogen Dioxide in the 

Atmosphere (Gas Phase Chemiluminescence)), referenced in Section 

243.124. 

Appendix G to 40 CFR 50 (2012) (Reference Method for the 

Determination of Lead in Suspended Particulate Matter Collected from 

Ambient Air), referenced in Section 243.126. 

Appendix H to 40 CFR 50 (2012) (lnteroretation of the !-Hour Primary 

and Secondary National Ambient Air Quality Standards for Ozone). 

referenced in Section 243.125. 

Appendix 1 to 40 CFR 50 (20 12) (Interpretation of the 8-Hour Primary and 

Secondary National Ambient Air Quality Standards for Ozone). 

referenced in Section 243.125. 

Appendix J to 40 CFR 50 (2012) (Reference Method for the 

Determination of Particulate Matter as PM 10 in the Atmosphere, 

referenced in Section 243.120. 

Appendix K to 40 CFR 50 (2012) (Interpretation of the Primary and 

Secondary National Ambient Air Quality Standards for Particulate 

Matter), referenced in Section243.120. 

Appendix L to 40 CFR 50 (2012) (Reference Method for the 

Detennination of Fine Pa1ticulate Matter as PMo.s in the Atmosphere), 

referenced in Section 243.120. 

Appendix N to 40 CFR 50 (2012) (Interpretation of the Primary and 

Secondary National Ambient Air Quality Standards for Particulate 

Matter). referenced in Section 243.120. 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

Appendix 0 to 40 CFR 50 (2012) (Reference Method for the 

Determination of Coarse Particulate Matter as PM10•25 in the 

Atmosphere), referenced in appendix 0 to 40 CFR 50 and for use in 

federally required monitoring by the NCore system pursuant to 40 CFR 

58. 

Appendix P to 40 CFR 50 (2012) (Interpretation of the Primary and 

Secondary National Ambient Air Quality Standards for Ozone). 

referenced in Section 243.125. 

Appendix 0 to 40 CFR 50 (2012) (Reference Method for the 

Determination of Lead in Particulate Matter as PM! 0 Collected from 

Ambient Air). referenced in appendix R to 40 CFR 50. 

Appendix R to 40 CFR 50 (2012) (Interpretation of the National Ambient 

Air Oualitv Standards for Lead). referenced in Section 243.126. 

Appendix S to 40 CFR 50 (20 12) (Interpretation of the Primary National 

Ambient Air Quality Standards for Oxides ofNitrogen (Nitrogen 

Dioxide)). referenced in Section 243.124. 

Appendix T to 40 CFR 50 {2012) (Interpretation of the Primary National 

Ambient Air Quality Standards for Oxides of Sulfur (Sulfur Dioxide)). 

referenced in Section 243.122. 

Clean Air Act, 42 USC 7401 et seq. (2011) (for definitions of terms only), 

referenced in Section 243.102. 

BOARD NOTE: Segments of the Code of Federal Regulations and the 

United States Code are available for free download as PDF documents 

from the GPO FDsys website: http://www.gpo.gov/fdsys/. 

USEP A. National Exposure Research Laboratory. Human Exposure & 

Atmospheric Sciences Division CMD-D205-03). Research Triangle Park. NC 

27711. The following documents incorporated by reference are available from 

this source: 

"List of Designated Reference and Equivalent Methods" (December 17. 

2012) (refeiTed to as "List of Designated Methods" and referenced in 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

Section 243.125 8 Heur Ozone 

a) Standars. The primary and seconElary ambient air quality standards fer ozone are 

M75 ppm (parts per million) daily maJcim12m 8 hour a-verage concentration, 

measures and setermined in accordance wifu subsection (b). 

b) Measmement Mefuod. O:wne shall be tHeasmed by a feseral equivalent meiliod 

based on 40 CFR 50, appendbc D and sesignates in accordance ·.vitfi 40 CFR 53 

Efficerporated by reference in Section 243.1 08) er an equivaleat mefuos 

designates in accordance with 40 CFR 53. Tile primary and secoadary arabient 

air quality stansards are met 'Nfien !fie average of the anaual fellrtfl highest daily 

ma:timHrH 8 fiollr average ozoHe concentration is less than or equal to 0.075 ppm, 

as setermiaed using 40 CFR 5G,appendiK P (iucorporated by refcreace in Seetion 

243.108). 

a) 1997 Primary and Secondary Eight-Hour NAAQS for Ozone. 

1) The 1997 hour primary and secondary eight-hour NAAOS for ozone, 

measured by an FRM based on appendix D to 40 CFR 50, incomorated by 

reference in Section 243.108, and designated by USEPA and listed in the 

List of Designated Methods. incomorated by reference in Section 243.108. 

is 0.08 ppm. daily maximum eicll.t-hour average. 

2) The 1997 primary and secondary eight-hour NAAOS for ozone is met at 

an ambient air quality monitoring site when the average of the annual 

fourth-highest daily maximum eight-hour average ozone concentration is 

less than or equal to 0.08 ppm, as determined in accordance with appendix 

I to 40 CFR 50. incorporated by reference in Section 243.108. 

3) US EPA has stated in corresponding 40 CFR 50.1 O(c) that the 1997 

primary and secondary eight-hour NAAQS for ozone set forth in 

subsection (b)(l) of this Section will no longer apply to an area for 

transportation conformity purposes one year after the effective date of 

USEPA designation of that area pursuant to 42 USC 7407 for the 2008 

primary and secondary eight-hour NAAOS set forth for ozone in 

subsection (c)(l) of this Section. The 1997 primary and secondary eighthour NAAQS for ozone set forth in this subsection (b) will remain 

applicable to all areas for all other purposes notwithstanding the 2008 

primary and secondary eight-hour NAAOS for ozone set forth in 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

subsection (c) of this Section or the USEPA designation of areas for that 

2008 primary and secondary eight-hour NAAQS for ozone. 

BOARD NOTE: USEPA has codified area designations and 

classifications with respect to the 2008 primary and secondary NAAQS 

for ozone in 40 CFR 81.314. When USEPA has taken action and the 

conditions of subsection (b)(3) have been fulfilled. or US EPA has 

removed 40 CFR 50.10. the Board will remove obsolete 1997 primary and 

secondruy one-hour or eight-hour NAAQS for ozone from this subsection 

f.& 

BOARD NOTE: This subsection (a) is derived from 40 CFR 50.10 (2012). 

b) 2008 Primary and Secondary Eight-Hour NAAQS for Ozone. 

1) The 2008 urimary and secondary eight-hour NAAQS for ozone is 0.075 

wm. daily maximum eight-hour average. measured by an FRM based on 

appendix D to 40 CFR 50. incorporated by reference in Section 243.108. 

and designated by USEPA and listed in the List of Designated Methods. 

incorporated by reference in Section 243.108. or an FEM designated by 

US EPA and listed in the List of Designated Methods. incorporated by 

reference in Section 243.108. 

2) The 2008 primary and secondary eight-hour NAAQS for ozone ambient 

air quality standards are met at an ambient air qualitv monitoring site 

when the three-year average of the annual fourth-highest daily maximum 

eight-hour average ozone concentration is less than or equal to 0.075 ppm. 

as determined in accordance with appendix P to 40 CFR 50. incorporated 

by reference in Section 243.108. 

BOARD NOTE: This subsection (b) is derived from 40 CFR 50.15 (2012). 

(Source: Amended at 37 Ill. Reg. ___ _, effective _________ .J 

Section 243.126 Lead 

a) Standard. The !lrimary and sesondary ambient air EtHality stanElards for !eael-anEl 

its eeffijJounds measured as e!ementa!leaEl are 0.13 Ft!im", maximum rolling three 

month avemge measured antklete~ar !lerioeh 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

b) Measurement Method. For determining confurmaflce with the ambient air quality 

standards fur lead afld its compoBHds,lt!iid-aHd-i-!s-wmpffiffids-shall-ee measured 

as elemental lead by federal equivalent method based on 10 CFR 50 appenclilt G 

and designated in accordance with 40 CFR 53, or by an equivalent mefuocl 

designated in accordance with 40 CFR 53 (inCOFJ30ra!ed by refefenGe in Section 

243.1 08) .. Compliance with the j'l!imary afld seeondary ambient air quality 

standards shall be determined in accordance with 40 CPR 50, appencli1< R 

fineerperated by reference in Section 243.10~ 

a) 1978 Primary and Secondary Quarterly Average NAAQS for Lead. 

1) The 1978 primary and secondary quarterly average NAAQS for lead and 

its compounds. measured as elemental lead by an FRM based on appendix 

G to 40 CFR 50, incorporated by reference in Section 243.108. and 

designated by USEPA and listed in the List ofDesignated Methods, 

incorporated by reference in Section 243.108, or by an FEM designated by 

USEP A and listed in the List of Designated Methods. incorporated by 

reference in Section 243.108, is 1.5 ugfm3

, maximum arithmetic mean 

averaged over a calendar quarter. 

2) The 1978 primary and secondarv guarterlv average NAAQS for lead set 

forth in this subsection (a) will remain applicable to all areas 

notwithstanding the 2008 primary and secondary quarterly average 

NAAQS for lead in subsection (b) of this Section. The 1978 primarv and 

secondary quarterly average NAAOS for lead set forth in this subsection 

(a) will no longer apply to an area one year after the effective date of the 

designation of that area by USEPA pursuant to 42 USC 7407 for the 2008 

primary and secondary three-month average NAAQS for lead set forth in 

subsection (b) ofthis Section: except that for areas designated 

nonattainment for the 1978 primary and secondary quarterly average 

NAAQS for lead set forth in this subsection (a) as of January 12, 2009, the 

1978 primary and secondaryNAAQS for lead set forth in this subsection 

(a) will apply until USEPA has approved an implementation plan for that 

area pursuant to 42 USC 7514 providing for attainment or maintenance of 

the 2008 primary and secondary three-month average NAAQS for lead set 

forth in subsection (b) of this Section. 

BOARD NOTE: The Board substituted "January 12, 2009" for the openended language in corresponding 40 CFR 50.12(b) relative to the effective 

date of 40 CFR 50.16. January 12, 2009 is the effective date recited at 73 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

Fed. Reg. 66964 (Nov. 12, 2008). USEPA designated Granite City as 

nonattainment with the 2008 primary and secondarv three-month average 

NAAQS for lead in 2010 and an area of Chicago in 2011. USEPA 

designated all other areas of Illinois for the 2008 primarv and secondary 

three-month average NAAQS for lead in 2012. See 40 CFR 81.314 (area 

designations in Illinois): 76 Fed. Reg. 72097, 108 (Nov. 22. 2011) 

(effective December 31, 2011): 75 Fed Reg. 71033,42 (Nov. 22, 2010) 

(effective December 31, 2010). Thus. this subsection (a) has been 

obsolete since December 31, 2012. 

BOARD NOTE: This subsection (a) is derived from 40 CFR 50.12 (2012). 

b) 2008 Primary and Secondary Three-Month Average NAAQS for Lead. 

1) The 2008 primary and secondary three-month average NAAOS for lead 

and its compounds is 0.15 ug/m3

• arithmetic mean concentration over a 

three-month period, measured in the ambient air as lead by either of the 

following: 

A) An FRM based on appendix G of 40 CFR 50, incorporated by 

reference in Section 243.108. and designated by USEPA and listed 

in the List of Designated Methods. incomorated by reference in 

Section 243.108 or; 

B) An FEM designated by USEPA and listed in the List of Designated 

Methods. incorporated by reference in Section 243.108. 

2) The 2008 primary and secondarv three-month average NAAQS for lead 

are met when the maximum arithmetic three-month mean concentration 

for a three-year period. as detetmined in accordance with appendix R of 

40 CFR 50. incorporated bv reference in Section 243.108. is less than or 

equal to 0.15 gg/m3

• 

BOARD NOTE: This subsection (b) is derived from 40 CFR 50.16 (2012). 

(Source: Amended at 37 Ill. Reg. ___ , effective-----------' 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

Section 243.APPENDIX A Rule into Section Table (Repealed) 

RJJ.bB £BCTIOJ>I 

W-1- 213.102 

300 243. I 03 

JW 243.104 

JG4 Appendi)( C 

;>0!; 213.106 

JG6 243.107 

W7 243.121 

~ 213.122 

W9 Repealed 

;H-0 243.123 

'H-1- 243.121 

;J-}2 213.125 

;J-}3 243.126 

(Source: Repealed at 37 Ill. Reg. effective ________ _j 

Section 243.APPENDIX B Section into Rule Table (Repealed) 

£BCT!Ol>l R1JLE 

243.101 

213.102 W-1-

213.103 300 

213.104 w; 

213.106 ;>0!; 

243.107 JG6 

~13.121 W7 

~43.1:2:2 ~ 

243.123 ;J+O 

213.124 'H-1-

243.125 m 

213.126 ;J-}3 

(Source: Repealed at 37 Ill. Reg. , effective ________ ~ 
ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

Section 243.APPENDIX C Past Compliance Dates (Repealed) 

~t as otherwise noted, eemplianee with this Part was re<IHirecl June 29, 1973. 

(Source: Repealed at 37 Ill. Reg. ____ ,, effective----------' 

Section 243. TABLE A Schedule of Exceptional Event Flagging and Documentation 

Submission for New or Revised NAAQS 

Airguality 

NAAOS data collected Event flagging & Detailed 

(Level) for calendar initial descriQtion documentation 

Regulatory Citations year deadline submission deadline 

2006 24-hour PMo.s 2004-2006 

(35 ug/m3) 

October I, 2007 AQril 15. 2008 

Section 243.120(c)(l} 

40 CFR 50.13(a) 

71 Fed. Reg. 6ll44 (Oct. 

17. 2006) 

2008 eight-hour ozone 2005-2007 June 18, 2009 Jtme 18. 2009 

(0.075 ll!lffi) 2008 June 18. 2009 June 18. 2009 

Section 243.125(c)(l) 2009 60 days after the end 60 days after the end 

40 CFR 50.15(a) of the calendar guarter ofthe calendar guarter 

73 Fed. Reg. 16436 (Mar. in which the event in which the event 

27. 2008) occurred or February occurred or Februarv 

5, 2010. whichever 5. 2010. whichever 

date occurred first date occurred first 

2010 one-hour nitrogen 2008 July 1, 2010 JanuarY 22. 2011 

oxides (as N02l 2009 July 1. 2010 Januarv22, 2011 

(100 !l!lb) 2010 AQril 1, 2011 July 1, 2010 

Section 243.124(b) 

40 CFR 50.11Cb) 

75 Fed. Reg. 6474 (Feb. 9, 

2010) 
2010 one-hour sulfur 

oxides (as so,} 

(75 ppb) 

Section 243.122(c)(l) 

40 CFR 17(a) 

75 Fed. Reg. 35520 (June 

22. 2010) 

ILLINOIS REGISTER 

POLLUTION CONTROL BOARD 

NOTICE OF ADOPTED AMENDMENTS 

October I. 2010 

October I. 2010 

June 1, 2011 

60 days after the end 

of the calendar quarter 

in which the event 

occurred or March 31, 

2012, whichever date 

occurred first 

June L 20ll 

June I, 2011 

June I, 2011 

60 days after the end 

of the calendar quarter 

in which the event 

occurred or March 31, 

2012, whichever date 

occured first 

BOARD NOTE: Derived from table 1 to 40 CFR 50.14(c) (2012). USEPA noted that the 

information in this table of revised deadlines onlv applies to data that USEPA will use to 

establish the final initial designations for new or revised NAAOS. USEP A stated that the 

general schedule in this table applies for all other purposes. most notably, for data that US EPA 

will use for redesignations to attainment. Corresponding table 1 to 40 CFR 50.14(c)(2) cites the 

2010 one-hour NAAOS for nitrogen oxides as "80-1 00 PPB. final level TBD" and the 2010 onehour NAAOS for sulfur oxides as "80-1 00 PPB, final level TBD." The adopted 2010 one-hour 

NAAOS forNOx at40 CFR 50.11(£) is 100 ppb and the adopted 2010 one-hourNAAQS for so, 

is 75 ppb. The Board has used the actual NAAQS for these contaminants in this Table A. 

Further, corresponding table 1 to 40 CFR 50.14(c) includes endnotes "a" and "b" indicate 

whether dates for NO, and so, are changed or unchanged. which the Board has omitted, since 

endnotes will serve no purpose in the Illinois regulations. 

(Source: Added at 37 IlL Reg. ___ _, effective _________ ...~ 
IEPA ATTACHMENT NO. n 

JOINT COMMITTEE ON ADMINISTRATIVE RULES 

ILLINOIS GENERAL ASSEMBLY 

CO-CHAIR: 

SEN, DON HARMON 

CO·CHAIR: 

REP. TIM SCHMITZ 

EXECUTIVE DIRECTOR: 

VlCKI THOMAS 

Thomas Holbrook, Chairman 

Pollution Control Board 

James R. Thompson Center 

100 W. Randolph, Suite 11-500 

Chicago, Illinois 60601 

Dear Chailman Holbrook: 

700 STRATTON BUILDING 

SPRINGFIELD, ILLINOIS 62706 

217nss-2254 

August 13, 2013 

SEN. PAMELA ALTHOFF 

SEN. 70NY MUNOZ 

SEN. SUE REZIN 

SEN. DALE RIGHTER 

SEN. IRA SILVERSTEIN 

REP. GREG HARRIS 

REP. LOU tANG 

REP. DAVID R. LEITCH 

REP. DONALD L MOFFITT 

REP. ANDRE THAPEDI 

ReCE:DVED 

CLERK'S OFFICE 

AUG 1 6 2013 

STATE OF ILLINOIS 

Fl'ollution Control Board 

This is to notifY you that the Committee considered the following exempt rulemaking at its 

8/13113 meeting and detennined that No Objection will be issued thereto: 

Air Quality Standards (35 Ill. Adm. Code 243) 

37 Ill. Reg. 7316-5131113 

Please note that, pursuant to Section 5-1 OO(f) of the Illinois Administrative Procedure Act, the 

fact that the Committee has not objected to the rulemaking does not constitute approval, express 

or implied, of the substance of the rulemaking. 

Th~you for your cooperation in this matter. 

Sincer ly, I '· 

enator Don ~~- Harmon 

o-Chainnan 

SDH:RTS:DC:rm 

cc: J olm Therriault