ILLINOIS REGISTER             10918  
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OFFICE OF THE STATE FIRE MARSHAL  
 
NOTICE OF ADOPTED RULES  
 
  1) Heading of the Part :  Carbon Monoxide Alarms and Detectors  
 
2) Code Citation :  41 Ill. Adm. Code 112  
 
3) Section Numbers :   Adopted Actions : 
112.100    New Section  
112.120    New Section  
112.140    New Section  
112.180    New Section  
112.200    New Section  
112.230    New Section  
112.250    New Section  
 
4) Statutory Authority :  Implementing and authorized by Sections 5/10 -20.56 and 5/34 -
18.49 of the School Code [105 ILCS 5/10 -20.56 and 5/34 -18.49] and Section 5 of the 
Carbon Monoxide Alarm Detector Act [430 ILCS 135/5]  
 
5) Effective Date of Rules :  July 29, 2016   
 
6) Does thi s rulemaking contain an automatic repeal date ?  No 
 
7) Does this rulemaking contain incorporations by reference ?  Yes  
 
8) A copy of the adopted rules, including any matter incorporated by reference, is on file in 
the Office of the State Fire Marshal, 1035  Stevenson Drive, Springfield  IL and is 
available for public inspection at that location.  
 
9) Notice of Proposed published in the Illinois Register :  40 Ill. Reg. 5165; March 25, 2016  
 
10) Has JCAR issued a Statement of Objection to this rulemaking ?  No  
 
11) Differences between the Proposed and Final Version :  In Section 112.250(b) the phrase 
"listed by UL " was replaced with the phrase "in accordance with the applicable UL 
standard " in two places.  In Section 112.250(g) a clarification was made by adding "that 
the occupant notification zone may be limited to the area where the carbon monoxide 
alarm signal was initiated " between "except " and "where " and deleting "The occupant 
notification zone may be limited to the area where the carbon monoxide alarm signal  was 
initiated. "  In Section 112.230(c), the last sentence was deleted as part of the agreed upon 
changes with JCAR.        ILLINOIS REGISTER             10919  
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OFFICE OF THE STATE FIRE MARSHAL  
 
NOTICE OF ADOPTED RULES  
 
   
 Three additional minor typographical edits were also made.   
 
12) Have all the changes agreed upon by the Agency and JCAR been made as indicated in the 
agreement letter issued by JCAR ?  Yes 
 
13) Will this rulemaking replace an emergency rule currently in effect ?  No  
 
14) Are there any rulemakings pending to this part ?  No 
 
15) Summary and Purpose of Rulemaking :  PA 99 -470 took effect on J anuary 1, 2016 and 
mandates local school boards to require each school under its authority to be equipped 
with carbon monoxide alarms or carbon monoxide detectors.  The statute places 
responsibility on the Office of the State Fire Marshal to establish the guidelines for 
approved carbon monoxide detectors under this Act and carbon monoxide alarms under 
the Carbon Monoxide Alarm Detector Act [430 ILCS 135/1].  Th ese rules establish  
minimum requirements for approved carbon monoxide alarms and detectors in new and 
existing public schools and clarif y the requirements for carbon monoxide alarms under 
the Carbon Monoxide Alarm Detector Act.  
 
16) Information and questions regarding these adopted rule s shall be directed to :   
 
Deborah J. Williams  
Division of Legal C ounsel  
Office of the State Fire Marshal  
1035 Stevenson Drive  
Springfield  IL  62703  
 
217/785 -0978  
fax:  217/524 -5487  
 
The full text of the Adopted Rules begins on the next page : 
       ILLINOIS REGISTER             10920  
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OFFICE OF THE STATE FIRE MARSHAL  
 
NOTICE OF ADOPTED RULES  
 
  TITLE 41:  FIRE PROTECTION  
CHAPTER I:  OFFICE OF THE STATE FIRE MARSHAL  
 
PART  112 
CARBON MONOXIDE ALARMS AND DETECTORS  
 
Section  
112.100  Purpose and Scope  
112.120  Severability  
112.140  Definitions  
112.180  Incorporations by Reference  
112.200  Approved Carbon Monoxide Alarms for Use in Dwelling Units  
112.230  Approved Carbon Monoxide Ala rms for Use in Public Schools  
112.250  General Requirements for Carbon Monoxide Detectors or Detection Systems in 
Public Schools  
 
AUTHORITY:  Implementing and authorized by Sections 10 -20.56 and 34 -18.49 of the School 
Code [105 ILCS 5/10 -20.56 and 34 -18.49]  and the Carbon Monoxide Alarm Detector Act [430 
ILCS 135].  
 
SOURCE:  Adopted at 40 Ill. Reg. 10918 , effective July 29, 2016 . 
 
Section 112.100  Purpose and Scope  
 
This Part implements the provisions of the School Code that delegate responsibility to the Office 
of the State Fire Marshal to promulgate regulations defining the carbon monoxide detectors that 
may be used public schools. (See 105 ILCS 5/10 -20.56 and 34 -18.49.)  This Part also includes 
the specifications for approved carbon monoxide alarms established by  the Carbon Monoxide 
Alarm Detector Act [430 ILCS 135] as referenced in the School Code.   
 
Section 112.120  Severability  
 
If any Section, subsection, sente nce or clause of this Part shall be held by a court of competent 
jurisdiction to be invalid, that holding shall not affect the remaining portions of this Part.  
 
Section 112.140  Definitions  
 
The following definitions are used in this Part:  
      ILLINOIS REGISTER             10921  
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OFFICE OF THE STATE FIRE MARSHAL  
 
NOTICE OF ADOPTED RULES  
 
  "Act" means th e Carbon Monoxide Alarm Detector Act [430 ILCS 135].  
 
"Alarm control unit " means a carbon monoxide detection system or fire alarm 
system component that monitors inputs and controls outputs through various types 
of circuits.  
 
 "Carbon monoxide alarm " or "alarm " means a single -station or multiple -station 
carbon monoxide alarm intended for the purpose of detecting carbon monoxide 
gas and alerting occupants by a distinct audible signal . An alarm is comprised of  
an assembly that incorporates a sensor, control components, and an alarm 
notification appliance in a single unit operated from a power source either located 
in the unit or obtained at the point of installation.  
 
"Carbon monoxide detection system " means a system that consists of an alarm 
control unit, co mponents, and circuits arranged to monitor and annunciate the 
status of carbon monoxide alarm initiating devices and to initiate the appropriate 
response to those signals.  
 
"Carbon monoxide detector " or "detector " means a device having a sensor that 
respon ds to carbon monoxide gas and that is connected to an alarm control unit  
[105 ILCS 5/10 -20.56(a) and 34 -18.49(a)] . 
 
"NFPA " means the National Fire Protection Association . 
 
"UL" means Underwriters Laboratories . 
 
Section 112.180  Incorporations by Reference  
 
a) All the materials incorporated by reference in this Section are incorporated as of 
the date specified and include no later editions or amendments.  
 
b) The following materials are incorporated by reference:  
 
NFPA 720:  Standard for the Installation of C arbon Monoxide (CO) Detection 
and Warning Equipment, (2015 edition), NFPA ; 1 Batterymarch Park, Quincy 
MA 02269 ; (617)770 -3000 or (800)344 -3555 ; www.nfpa.org.  
      ILLINOIS REGISTER             10922  
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OFFICE OF THE STATE FIRE MARSHAL  
 
NOTICE OF ADOPTED RULES  
 
  UL 217:  Standard for Smoke Alarms (8th edition ; October 30, 2015) ; 
Underwriters Laboratories, 3 33 Pfingsten Road, Northbrook IL 60062 ; (877)854-
3577 ; www.ul.com.  
  
UL 268:  Smoke Detectors for Fire Alarm Systems (7th edition ; January 11, 
2016) ; Underwriters Laboratories, 333 Pfingsten Road, Northbrook IL 60062 ; 
(877)854-3577 ; www.ul.com.  
  
UL 2034:  Standard for Single and Multiple Station Carbon Monoxide Alarms (3rd 
edition ; February 28, 2008) ; Underwriters Laboratories, 333 Pfingsten Road, 
Northbrook  IL 60062; ( 877)854-3577;  www.ul.com.  
 
UL 2075:  Standard for Gas and Vapor Detectors and S ensors (2nd edition ; March 
5, 2013) ; Underwriters Laboratories, 333 Pfingsten Road, Northbrook IL 60062 ; 
(877)854-3577 ; www.ul.com.  
 
Section 112.200  Approved Carbon Monoxide Alarms for Use in Dwelling Units  
 
An approved carbon monoxide alarm used in an oc cupancy or structure that has one or more 
dwelling units , as defined in the Act , must be listed in accordance with UL 2034 , as incorporated 
by reference in Section 112.180.  An approved combined carbon monoxide and smoke alarm 
used in an occupancy or struc ture that has one or more dwelling units , as defined in the Act , must 
be listed in accordance with UL 2034 and UL 217 , as incorporated by reference in Section 
112.180.  
 
Section 112.230  Approved Carbon Monoxide Alarms for Use in Public Schools  
 
a) Carbon monoxide alarms in public schools must be listed in accordance with UL 
2034 , as incorporated by reference in Section 112.180.   
 
b) Combined carbon monoxide and smoke alarms must be listed in accordance with 
UL 2034 and UL 217 , as incorporated by reference  in Section 112.180.  
 
c) For public schools designed on or after January 1, 2016, any carbon monoxide 
alarm installed to achieve compliance with the School Code and this Part must be 
monitored by any required fire alarm system and must be perm anently power ed 
by the building' s electrical system.   
      ILLINOIS REGISTER             10923  
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OFFICE OF THE STATE FIRE MARSHAL  
 
NOTICE OF ADOPTED RULES  
 
  Section 112.250  General Requirements for Carbon Monoxide Detectors or Detection 
Systems in Public Schools  
 
a) For public schools designed on or after January 1, 2016, a carbon monoxide 
detection system or carbon monoxide detectors installed to achieve compliance 
with the School Code and this Part must be monitored by any required fire alarm 
system and must be permanently powered by the building 's electrical system.    
 
b) A carbon monoxide detection system construc ted and installed pursuant to this 
Section and its components must be listed in accordance with the applicable UL 
standard  for the purpose for which it is used and must be cross -listed in 
accordance with the applicable UL standard  with the panel to which i t is 
connected.   
 
c) Carbon monoxide detectors shall be listed in accordance with UL 2075 , 
incorporated by reference in Section 112.180.  
 
d) Combined carbon monoxide and smoke detectors installed in carbon monoxide 
detection systems shall be an acceptable  alternative to carbon monoxide detectors 
provided the combination detectors are listed in accordance with UL 2075 and UL 
268. 
 
e) Carbon monoxide detection system or carbon monoxide detector components 
must be installed and maintained in accordance with t he manufacturer 's published 
instructions and NFPA 720, incorporated by reference in Section 112.180, except 
that the location and the frequency of inspection and testing of carbon monoxide 
detectors shall be as prescribed in Section 10-20.56(b) or 34 -18.49 (b) of the 
School Code , as applicable.   
 
f) All carbon monoxide detection systems and carbon monoxide detectors must have 
an audible alarm signal that is distinctive from other alarm signals and is a four -
pulse temporal pattern as prescribed in NFPA 720.  
 
g) Carbon monoxide detection systems or carbon monoxide detectors must have 
occupant notification throughout the building , except that t he occupant 
notification zone may be limited to the area where the carbon mono xide alarm 
signal was initiated where the  signal is transmitted to a constantly attended 
location on -premise or off -premise where response action can be taken.   
      ILLINOIS REGISTER             10924  
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OFFICE OF THE STATE FIRE MARSHAL  
 
NOTICE OF ADOPTED RULES  
 
  h) Signals from carbon monoxide detection systems and carbon monoxide detectors 
transmitted to a fire alarm system shall not transmit a fire alarm signal.