DEPARTMENT OF LICENSING AND REGULATORY AFFAIRS  
DIRECTOR'S OFFICE  
GENERAL INDUSTRY SAFETY STANDARDS  
(By authority conferred on the director of the department of licensing and regulatory  
affairs by sections 16 and 21 of 1974 PA 154, and Executive Reorganization Order Nos.  
1996-2, 2003-1, 2008-4, and 2011-4, MCL 445.2001, 445.2011, 445.2025, and 445.2030)  
PART 9. FIXED FIRE EQUIPMENT  
R 408.10901 Scope.  
Rule 901. This part sets forth general rules which apply to the installation, use,  
maintenance, and testing of fixed fire extinguishing systems in, around, or about a  
place of employment as required by provisions of other standards.  
History: 1979 AC; 1984 AACS.  
R 408.10902 Definitions; A to C.  
Rule 902. (1) "Automatic sprinkler system" means a network of specially sized  
piping to which sprinklers are connected and systematically spaced. The system is  
activated by heat to discharge water over a fire starting at any point. This system is  
connected to a water supply through a controlling valve and a device for activating an  
alarm when the system is operating.  
(2) "Carbon dioxide extinguishing system" means a system of pipes or hoses,  
nozzles, a triggering device and a pressurized container of carbon dioxide. The gas  
dilutes the oxygen or gaseous fuel, thus stopping the combustion chain reaction.  
(3) "Class A fire" means a fire that has, as its fuel, ordinary combustible  
material, such as wood, cloth, paper, rubber, and many plastics.  
(4) "Class B fire" means a fire that has, as its fuel, flammable liquids, gases, or  
greases.  
(5) "Class C fire" means a fire that involves energized electrical equipment  
where the nonconductivity of the extinguishing agent is necessary to prevent shock.  
The fuel consumed by a class C fire will be classed as A, B, or D.  
(6) "Class D fire" means a fire that involves the oxidation reaction of combustible  
metals, such as magnesium, titanium, zirconium, sodium, or potassium.  
History: 1979 AC.  
R 408.10903 Definitions; D to F.  
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Rule 903. (1) "Dry chemical extinguishing system" means a system of pipes or  
hoses, nozzles, an actuating device, an expellant gas and a container holding a dry  
chemical. When activated, the expellant gas carries the dry chemical in suspension  
to stop the combustion chain reaction.  
(2) "Dry chemical" means an agent, capable of extinguishing a fire, composed of  
very small particles, such as sodium bicarbonate, potassium bicarbonate, or  
monoammonium phosphate, with added particulate material supplemented by special  
treatment to prevent caking and providing flowability.  
(3) "Dry pipe system" means an automatic sprinkler system employing  
compressed air or other nonflammable gases in the system instead of water. When a  
sprinkler opens, relieving the air pressure, water pressure opens a dry pipe valve filling  
the system with water. This system is normally used where piping is exposed to freezing  
temperatures.  
(4) "Fire pump" or "booster pump" means a water pump used to supply water  
from a suction supply at a specific pressure and volume to a sprinkler or standpipe  
system.  
(5) "Fixed fire equipment" means a fire extinguishing system which is  
permanently mounted and portions of those systems which may be portable, such as a  
hose and nozzle attached to a fixed supply of extinguishing agent.  
(6) "Flammable liquid" means any liquid having a flashpoint below 100 degrees  
Fahrenheit.  
(7) "Flammable material" means that material which ignites easily, burns intensely,  
or has a rapid rate of flame spread.  
(8) "Foam-water spray system" means a special system, pipe-connected to a source  
of foam concentrate and to a water supply, equipped with appropriate devices for  
extinguishing agent discharge and distribution over the area or equipment to be  
protected.  
History: 1979 AC; 1984 AACS.  
R 408.10905 Definitions; H to P.  
Rule 905. (1) "Halogenated extinguishing system" means a fixed system of pipes or  
hoses, nozzles, an actuating device and a container containing a halogenated agent under  
pressure. The agent inhibits the chemical reaction of fuel and oxygen, thus stopping the  
combustion chain reaction.  
(2) "High expansion foam system" means a system of flooding an area with an  
aggregation of bubbles mechanically generated by the passage of air or gas through a net  
or screen which is wetted by a solution of foaming agents and generated as a foam in  
a ratio of 100 to 1000 to 1.  
(3) "Local fire alarm system" means a system of boxes or devices which will  
manually or automatically activate a visual or audible alarm, or both, to alert an  
employee.  
(4) "Predischarge or discharge alarm" means an audible or visual device  
interconnected with an extinguishing system and a detecting actuating device.  
History: 1979 AC.  
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R 408.10907 Definitions; S to W.  
Rule 907. (1) "Sprinkler" or "sprinkler head" means a device which is installed in  
a sprinkler system and controls the direction and area of coverage of an extinguishing  
agent.  
(2) "Standpipe and hose system" means a water pipe and a hose used where the  
building height or character requires an immediate means of obtaining a fire stream.  
(3) "Water flow alarm" means a device so constructed and installed that any flow of  
water from a sprinkler system, equal to or greater than that from a single sprinkler, will  
result in an audible alarm signal on the premises.  
History: 1979 AC.  
R 408.10911 Employer's responsibility.  
Rule 911. (1) An employer shall be responsible for the maintenance of the fixed  
fire equipment system in the area occupied or controlled by him.  
(2) An employer shall furnish training to an employee before assignment to perform  
maintenance on a fixed fire equipment system.  
(3) An employer shall have the design of the fixed fire equipment system  
reevaluated whenever the occupancy changes or fire hazards increase.  
(4) An employer shall keep a record of the 3 most recent tests and inspections,  
but in no case shall it cover less than a 12-month period.  
History: 1979 AC.  
R 408.10912 Employee's responsibility.  
Rule 912. An employee shall not perform maintenance or make inspections on fixed  
fire equipment unless he has been trained for the type of equipment to be maintained  
or inspected and has been authorized to do so.  
History: 1979 AC.  
R 408.10913 Notification.  
Rule 913. Whenever fire equipment is closed or removed from service, the  
following shall be accomplished:  
(a) The plant manager or a designated representative shall be notified.  
(b) The balance of the system shall be kept operable.  
(c) After alterations or repairs, the system shall be tested and resealed in  
operable condition where required, and those persons in subdivision (a) advised.  
History: 1979 AC; 1984 AACS.  
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R 408.10914. Requirements.  
Rule 914. (1) A fixed fire equipment system, as listed in R 408.10921 and R 408.10941  
to R 408.10976, shall be installed for all of the following:  
(a) All areas inside a building where flammable liquids are mixed, dispensed or applied,  
or used for washing or quenching, except either of the following:  
(i) A dip tank holding less than 150 gallons, having less than 4 square feet of liquid  
surface or both.  
(ii) As dispensed from an approved safety container of 5 gallons or less.  
(b) Other areas where the quantities of flammables are likely to burn rapidly and injure a  
nearby employee. Such a system shall be classed according to table 1. Other equivalent  
systems may be used, if such systems meet standards or tests of the department of  
licensing and regulatory affairs and are installed and maintained in accordance with  
nationally recognized requirements.  
(2) Where a fixed fire equipment system is required or is installed and in use, it shall be  
installed and maintained as prescribed in R 408.10916 to R 408.10984.  
(3) Except as prescribed in R 408.10971, a fixed fire equipment system containing an  
active agent or propellant whose thermal decomposition product of products have a level  
of vapor toxicity equal to or greater than any of the materials listed in table 2 shall not be  
used, installed for use, or allowed to remain installed for use where an employee would  
be exposed to the agent or propellant.  
TABLE 1  
EXTINGUISHER AGENT TYPE  
AND CONTENTS  
HAZARD  
FIRE FOAM, MULTI-PURPOSE  
CLASS A DRY CHEMICAL, HALOGENATED  
AGENTS, WATER.  
CARBON DIOXIDE, DRY  
CHEMICAL, FOAM, WATER,  
CLASS B  
MULTILPURPOSE DRY  
FIRE  
CHEMICAL, HALOGENATED  
AGENTS SUCH AS HALON 1301.  
CARBON DIOXIDE, DRY  
CLASS C CHEMICAL, MULTI-PURPOSE  
FIRE  
DRY CHEMICAL, WATER MIST,  
HALOGENATED AGENTS.  
EXTINGUISHING AGENT LISTED  
FOR USE ON A SPECIFIC  
COMBUSTIBLE METAL HAZARD.  
CLASS D  
FIRE  
TABLE 2  
1. Carbon tetrachloride, CCL4  
2. Chlorobromomethane, CH2Br CL  
3. Azeotropic chlormethane, CM7  
4. Didbromodifluoromethane, CBr2F2  
5. 1, 2-dibromo-2 chloro-1, 1, 2-trifluorothane,  
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Cbr F2CBrCLf  
6. 1, 2-dibromo-2, 2-difluorothane, CH2BrCBrF2  
7. Methyl bromide, CH3Br  
8. Ethylene dibromide, CH2BrCH2Br  
9. Hydrogen bromide, HRr  
10. Methylene bromide, CH2Br2  
11. Bromodifluromethane, CHBrF2  
History: 1979 AC; 2013 AACS.  
R 408.10916 Gravity, suction, and pressure tanks.  
Rule 916. (1) A gravity or suction water tank shall be maintained at the full water  
level designed for fire protection purposes.  
(2) The water and air in a pressure water tank shall be maintained at the designed  
levels and pressures.  
(3) The water in a gravity, suction, or pressure tank and risers shall be maintained  
above freezing temperature. Where a heater is used, the water temperatures shall be  
not more than 60 degrees Fahrenheit.  
(4) A steel water tank shall be inspected not less than every  
deterioration and, when necessary, repairs made.  
3
years for  
(5) A wooden water tank shall be inspected not less than every 2 years for  
deterioration and, when necessary, repairs made.  
History: 1979 AC.  
R 408.10917 Fire pumps.  
Rule 917. (1) A fire pump shall be operated not less than once a month as follows:  
(a) A steam fire pump operated until water is discharged freely from the relief valve.  
(b) A centrifugal pump operated at rated speed.  
(c) If power is provided by an internal combustion engine, the engine shall be run  
for not less than 30 minutes to bring it up to normal operating temperature.  
(d) An automatically controlled pump tested manually shall have not less than 1 start  
each month accomplished by reducing the pressure in the water pressure sensing line or  
with a larger flow from the entire system.  
(2) A fire pump shall be maintained in a room above freezing temperature.  
(3) A fire pump shall be used for fire protection only.  
(4) A fire pump shall be tested to rated capacity not less than once a year.  
History: 1979 AC.  
R 408.10919 Existing fixed fire extinguishing systems.  
Rule 919. An existing fixed fire extinguishing system installed or that portion  
modified after August 17, 1974, shall be in compliance with the applicable general  
industry safety standards that were in effect at the time of installation or modification.  
History: 1984 AACS.  
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R 408.10920 New fixed fire extinguishing systems.  
Rule 920. A new fixed fire extinguishing system installed or that portion  
modified shall meet the applicable rules of this part.  
History: 1984 AACS.  
AUTOMATIC SPRINKLER SYSTEMS  
R 408.10921 Installation and maintenance.  
Rule 921. An automatic sprinkler system installed or that portion of a system  
modified after December 31, 1983, shall be installed and maintained as prescribed in  
N.F.P.A. standard #13-1980, "Installation of Sprinkler Systems," as adopted by  
reference in R 408.10999(a).  
History: 1979 AC; 1984 AACS.  
R 408.10923 Inspection and maintenance of dry systems.  
Rule 923. A dry pipe system shall:  
(a) Have the system pressure checked not less than once a week and replenished,  
when necessary.  
(b) Have a means of maintaining the temperature of the dry pipe valve above  
freezing.  
(c) Have all low drain points drained and free of water during freezing  
temperatures.  
(d) Maintain the priming water at the designed level.  
(e) Give the dry pipe valve a working test, cleaning, and resetting not less than once  
a year.  
History: 1979 AC.  
R 408.10924 Clearance to sprinkler deflectors.  
Rule 924. The clearances between a ceiling type sprinkler deflector and the top of a  
stock pile shall be:  
(a) Thirty-six inches where the top of solid piled stock is more than 15 feet high or is  
more than 12 feet in rack or palletized storage.  
(b) Eighteen inches for all other piling.  
History: 1979 AC.  
R 408.10925. Inspection and maintenance.  
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Rule 925. (1) A sprinkler shall not be painted or coated except by the sprinkler  
manufacturer. Excepted are petroleum jelly or paper bag coverings, which shall not  
interfere with the normal functioning of the sprinkler.  
(2) An automatic sprinkler shall be replaced with a new sprinkler after it is installed 50  
years or shows evidence of corrosion, leakage, or damage.  
(3) A sprinkler wrench shall be used for installing and removing a sprinkler.  
(4) A broken or loose pipe hanger shall be replaced or refastened.  
(5) The employer shall perform a main drain flow test on each system annually. The  
inspectors test valve shall be opened not less than every 2 years to assure the system  
operates properly.  
History: 1979 AC; 1984 AACS; 2013 AACS.  
R 408.10926 Supplies.  
Rule 926. (1) A stock of extra sprinklers shall be maintained or readily available for  
each temperature rating and type so that the system can be returned to readiness as soon  
as possible.  
(2) An automatic sprinkler system of more than 20 sprinklers shall have at least 1  
automatic water supply capable of providing design water flow for not less than 30  
minutes.  
History: 1979 AC; 1984 AACS.  
R 408.10927 Outside open sprinkler equipment.  
Rule 927. Outside open sprinkler equipment shall be tested during warm weather  
not less than once a year.  
History: 1979 AC.  
R 408.10928 Sprinkler alarms.  
Rule 928. An automatic sprinkler system having more than 20 sprinklers shall have  
a water flow alarm which sounds an audible signal on the premises upon water flow  
through the system equal to the flow from a single sprinkler.  
History: 1984 AACS.  
STANDPIPE AND HOSE SYSTEMS  
R 408.10931 Installation and maintenance.  
Rule 931. (1) A standpipe and hose system installed or that portion of a system  
modified after December 31, 1983, shall be installed, modified, and maintained as  
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prescribed in N.F.P.A. standard #14-1980, "Standpipe and Hose Systems," as adopted  
by reference in R 408.10999(b).  
(2) Subrule (1) of this rule does not apply to a class 1 standpipe system.  
History: 1979 AC; 1984 AACS.  
R 408.10933 Location.  
Rule 933. A standpipe shall be located so as to be unobstructed, readily accessible,  
and so guarded that it is protected against mechanical damage.  
History: 1979 AC.  
R 408.10934 Hose and hose connections.  
Rule 934. (1) Where a hose outlet is provided for use of employees, the hose length  
shall not exceed 100 feet of approved 1 1/2 inch lined hose attached to the outlet.  
Unlined hose may remain in use on existing systems provided it is serviceable.  
Replacement shall be with approved lined hose. In extreme conditions or climates  
where damage or deterioration may result, the hose may be stored in another location  
provided it is readily available to be connected.  
(2) Hose and hose outlets shall be within easy reach of a person standing on a  
floor, unobstructed and conspicuously marked.  
(3) Hose outlets shall be standardized having threads or adapters with threads  
conforming to those used by the organized public fire department.  
(4) A shut-off type nozzle shall be provided, except where unlined hose is still  
approved. Nozzles shall be of an approved type and have a discharge coefficient not  
exceeding 110 psi (7.5 bars).  
History: 1979 AC; 1984 AACS.  
R 408.10935 Hose rack or reel.  
Rule 935. A hose rack or reel shall be provided for fire hose at each hose station  
and the hose and nozzle shall be maintained in the rack or reel when not in use.  
History: 1979 AC.  
R 408.10936 Rescinded.  
History: 1979 AC; 1984 AACS.  
R 408.10937 Inspection of standpipe and hose system; water level; valve;  
water supply.  
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Rule 937. (1) An inspection of all portions of a standpipe and hose system shall  
be made not less than once a year by a trained and authorized employee or an outside  
service.  
(2) A water tank shall be maintained at the water level designed for fire protection  
purposes and where a pressure tank is used, the air pressure shall be maintained at  
the designed pressure level, but not less than 75 psi.  
(3) The valve to the main connection of the source of water to a standpipe shall  
be kept open at all times.  
(4) The water supply for standpipe and hose systems shall provide a minimum of  
100 gallons per minute for not less than 30 minutes.  
History: 1979 AC; 1984 AACS.  
CARBON DIOXIDE SYSTEMS  
R 408.10941 Installation and maintenance.  
Rule 941. A carbon dioxide extinguishing system installed or that portion of  
the system modified after December 31, 1983, shall be installed, modified, and  
maintained as prescribed in N.F.P.A. standard #12-1980, "Carbon Dioxide  
Extinguishing Systems," as adopted by reference in R 408.10999(c).  
History: 1979 AC; 1984 AACS.  
R 408.10944 Installations prohibited.  
Rule 944. A carbon dioxide extinguishing system shall not be installed to control a  
fire involving:  
(a) Chemicals containing their own oxygen supply, such as cellulose nitrate.  
(b) Combustible metals or special hazardous materials, such as sodium, potassium,  
magnesium, titanium, and zirconium.  
(c) Metal hydrides.  
History: 1979 AC.  
R 408.10945 Safeguards.  
Rule 945. (1) Where there is a possibility that an employee may be trapped in, or  
enter into, an atmosphere made hazardous by a carbon dioxide discharge, the  
following safeguards shall be provided:  
(a) Predischarge and discharge alarm.  
(b) Warning signs.  
(c) Employee training.  
(d) Self-contained breathing apparatus.  
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(2) Where an alarm, audible or visual, is provided to indicate system failure, it  
shall be distinctive from an alarm indicating operation or hazardous conditions and  
shall operate continuously until manually shut off.  
(3) Before an employee enters an area where carbon dioxide has been discharged  
and may be trapped, the area shall be purged or the employee shall wear approved  
respiratory equipment.  
History: 1979 AC.  
R 408.10946 Inspection.  
Rule 946. (1) A carbon dioxide extinguishing system shall be inspected by a  
trained and authorized employee or outside service:  
(a) Not less than annually to insure operability.  
(b) Not less than semiannually to insure that all high pressure cylinders are at  
the designed weight. A cylinder showing a net loss in weight of more than 10% shall  
be refilled or replaced.  
(c) Not less than annually to check the accuracy of low pressure system liquid level  
gauges.  
(d) If a container shows a loss of more than 10%, it shall be refilled, unless the  
minimum gas requirements are still provided.  
(2) A tag shall be affixed indicating the date of inspection.  
History: 1979 AC.  
DRY CHEMICAL SYSTEMS  
R 408.10951 Installation and maintenance.  
Rule 951. A dry chemical extinguishing system installed or that portion of the  
system modified after December 31, 1983, shall be installed, modified, and  
maintained as prescribed in N.F.P.A. standard #17-1980, "Dry Chemical Extinguishing  
Systems," as adopted by reference in R 408.10999(d).  
History: 1979 AC; 1984 AACS.  
R 408.10952 Chemical agents.  
Rule 952. Dry chemical extinguishing agents of different compositions shall not  
be mixed together. The system shall be refilled with the chemical stated on the  
approved nameplate or with an equivalent compatible material.  
History: 1984 MR 2, Eff. Mar. 2, 1984.  
R 408.10953 Installations prohibited.  
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Rule 953. A dry chemical extinguishing system shall not be installed to control a  
deep seated or burrowing fire in ordinary combustibles, or for the items prescribed in  
subdivisions (a) and (b) of R 408.10944.  
History: 1979 AC.  
R 408.10954 Safeguards.  
Rule 954. Safeguards, as prescribed in R 408.10945, except subdivision (d), shall  
be provided where the possibility exists that an employee might be within the hazardous  
area during discharge of the extinguishing agent.  
History: 1979 AC.  
R 408.10955 Inspection.  
Rule 955. (1) A dry chemical extinguishing system shall be inspected by a trained  
and authorized employee or outside service:  
(a) Not less than annually to insure operability.  
(b) Not less than semiannually to insure the installed expellant gas containers are  
at the designed pressure or weight.  
(c) Not less than semiannually to insure the stored pressure dry chemical  
container is at the designed pressure.  
(2) A tag shall be affixed indicating the date of inspection.  
History: 1979 AC.  
FOAM SYSTEMS  
R 408.10961 Installation and maintenance.  
Rule 961. (1) A foam system installed or that portion of the system modified after  
December 31, 1983, shall be installed, modified, and maintained as prescribed in  
N.F.P.A. standards #11-1978, "Foam Extinguishing Systems," #11A-1981, "High  
Expansion Foam Systems," and #11B-1977, "Synthetic Foam and Combined Agent  
Systems," as adopted by reference in R 408.10999(e), (f), and (g).  
(2) Foam-water sprinkler systems and foam-water spray systems installed or that  
portion of the system modified after December 31, 1983, shall be installed and  
maintained as prescribed in N.F.P.A. standard #16-1980, "Foam-Water Sprinkler  
Systems and Foam-Water Spray Systems," as adopted by reference in R 408.10999(h).  
History: 1979 AC; 1984 AACS.  
R 408.10963 Installations prohibited.  
Rule 963. A foam system shall not be installed to control a fire involving any of  
the following:  
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(a) Chemicals containing their own oxygen supply, such as cellulose nitrate.  
(b) Energized unenclosed electrical equipment.  
(c) Water reactive metals, such as sodium and potassium.  
(d) Water reactive materials, such as triethyl-aluminum and phosphorous pentoxide.  
History: 1979 AC; 1984 AACS.  
R 408.10964 Safeguards.  
Rule 964. (1) Safeguards for a foam system shall be provided as prescribed in  
R 408.10945.  
(2) Entry into foam shall be made only in an emergency. If emergency entry is  
necessary, self-contained breathing apparatus shall be worn in conjunction with a life  
line attended by another employee outside the hazardous area.  
History: 1979 AC; 1984 AACS.  
R 408.10965 Inspection and maintenance; foam systems.  
Rule 965. (1) A high expansion or synthetic and combined agent foam system  
shall be inspected by a trained and authorized employee or by an outside service no less  
than once a year to ensure operability.  
(2) A foam-water system shall be inspected not less than every 6 months.  
(3) Strainers shall be inspected and cleaned after each use.  
History: 1979 AC; 1984 AACS.  
HALOGENATED EXTINGUISHING SYSTEMS  
R 408.10971 Installation and maintenance.  
Rule 971. (1) A halogenated fire extinguishing system installed or that portion of  
the system modified after December 31, 1983, shall be installed, modified, and  
maintained as prescribed in N.F.P.A. standard #12A-1980. "Halogenated Fire  
Extinguishing Agent Systems - Halon 1301," as adopted by reference in R 408.10999(i).  
(2) The plan and installation of the halogenated fire extinguishing system shall be  
approved by the state fire marshal.  
History: 1979 AC; 1984 AACS.  
R 408.10973 Exceptions to use.  
Rule 973. A halogenated fire extinguishing system shall not be used to extinguish  
fires as listed in R 408.10944.  
History: 1979 AC.  
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R 408.10975 Safeguards.  
Rule 975. (1) Where there is a possibility that an employee may be trapped in, or  
may enter into, an atmosphere made hazardous by the discharge of a halon 1301  
extinguishing agent, the following safeguards shall be provided:  
(a) A predischarge and a discharge alarm in a normally occupied area, except an  
explosion suppressant system, does not require  
a
predischarge alarm if the  
concentration of the discharge agent does not exceed 7%. If evacuation of the area by  
personnel can be accomplished within 1 minute, the concentration may be increased to  
10%.  
(b) Warning signs.  
(c) Employee training.  
(2) Where an alarm, audible or visual, is provided to indicate system failure, it  
shall be distinctive from an alarm indicating operation or hazardous conditions, and  
shall operate continuously until manually shut off.  
(3) Before an employee enters an area where halon 1301 has been discharged,  
the area shall be purged of that substance. In an emergency and before purging has been  
accomplished, an employee may enter the area while wearing approved respiratory  
equipment.  
History: 1979 AC.  
R 408.10976 Inspection and maintenance.  
Rule 976. (1) A halogenated extinguishing system shall be inspected by a trained  
and authorized employee or by an outside service not less than once a year to insure  
operability.  
(2) Not less than semiannually the following shall be accomplished:  
(a) The weight and pressure of a refillable container of a halogenated extinguishing  
agent shall be checked. A container shall be repaired or replaced if the loss in net  
weight is more than 5% or the loss in pressure is more than 10%.  
(b) The weight of a nonrefillable container shall be checked. A container shall  
be replaced if the net weight loss is more than 5%.  
(c) The weight, pressure, and date shall be entered on a tag attached to the  
extinguisher.  
History: 1979 AC.  
LOCAL FIRE ALARM SYSTEMS  
R 408.10981 Installation and maintenance.  
Rule 981. (1) A local fire alarm system installed or that portion of the system  
modified after December 31, 1983, shall be installed, modified, and maintained as  
prescribed in N.F.P.A. standard #72A-1979, standard for the "Installation, Maintenance  
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and Use of Local Protective Signaling Systems for Watchmen, Fire Alarm and  
Supervisory Service," as adopted by reference in R 408.10999(j).  
(2) Where the protected premises has an emergency power supply, the local fire  
alarm system shall have a secondary source of power.  
History: 1979 AC; 1984 AACS.  
R 408.10983 Location.  
Rule 983. (1) A local fire alarm system shall be mounted in a location where the  
system will not be activated by vibration or jarring.  
(2) A manual fire alarm box shall be mounted permanently to a wall or post and  
protected against physical damage.  
(3) A manual fire alarm box shall be located so that the maximum distance on  
each floor to a box will be not more than 200 feet. The box shall be unobstructed,  
readily accessible, and in the regular path of travel to an exit. The location of the box  
shall be identified by a sign or light visible from a distance of not less than 200 feet.  
History: 1979 AC; 1984 AACS.  
R 408.10984 Maintenance and inspection.  
Rule 984. A local fire alarm system shall be tested by a trained and authorized  
employee or an outside service not less than once a week to insure operability by the  
activation of not less than 1 box.  
History: 1979 AC.  
FIRE DETECTION SYSTEMS  
R 408.10991 Installation.  
Rule 991. An automatic fire detection system installed or that portion of the system  
modified after December 31, 1983, shall be installed, modified, and maintained as  
prescribed in N.F.P.A. standard #72E-1982, "Automatic Fire Detection Systems," as  
adopted by reference in R 408.10999(k).  
History: 1984 AACS.  
R 408.10993 Location and mounting.  
Rule 993. (1) Detectors shall be located or by other means be protected from  
mechanical or physical impact which could render them inoperable.  
(2) Detectors subject to climatic or corrosive atmospheres, or contaminants  
shall be provided with protection to maintain operability.  
(3) Detectors shall be supported independently of their attachment to wires or  
tubing.  
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History: 1984 AACS.  
R 408.10995 Maintenance.  
Rule 995. (1) All systems shall be maintained in operable condition and tested on a  
periodic basis to assure reliability and operating condition.  
(2) Pneumatic- and hydraulic-operated detection systems installed after December  
31, 1983, shall be a supervised system.  
(3) Servicing, maintenance, and testing of detection systems shall be performed by  
trained persons knowledgeable in the operation and function of the system.  
History: 1984 AACS.  
R 408.10999. Reference standards.  
Rule 999. The N.F.P.A. standards herein referred to are incorporated by reference. The  
standards are available for inspection at the Michigan Department of Licensing and  
Regulatory Affairs, MIOSHA Standards Section, 7150 Harris Drive, P.O. Box 30643,  
Lansing, Michigan 48909. The standards may be purchased from the National Fire  
Protection Association, Batterymarch Park, Quincy, Massachusetts 02269, or via the  
internet at www.nfpa.org at a cost as of the time of adoption of these rules, as stated in  
this rule:  
(a) N.F.P.A. #13-1980, Installation of Sprinkler Systems, cost $27.00 each.  
(b) N.F.P.A. #14-1980, Standpipe and Hose Systems, cost $27.00 each.  
(c) N.F.P.A. #12-1980, Carbon Dioxide Extinguishing Systems, cost $27.00 each.  
(d) N.F.P.A. #17-1980, Dry Chemical Extinguishing Systems, cost $27.00 each.  
(e) N.F.P.A. #11-1978, Foam Extinguishing Systems, cost $27.00 each.  
(f) N.F.P.A. #11A-1981, High Expansion Foam Systems, cost $27.00 each.  
(g) N.F.P.A. #11B-1977, Synthetic Foam and Combined Agent Systems, cost $27.00  
each.  
(h) N.F.P.A. #16-1980, Foam-Water Sprinkler Systems and Foam-Water Spray Systems,  
Cost $27.00 each.  
(i) N.F.P.A. #12A-1980, Halogenated Fire Extinguishing Agent Systems – Halon 1301,  
cost $27.00 each.  
(j) N.F.P.A. #72A-1979, Installation, Maintenance & Use of Local Protective Signaling  
Systems for Watchmen, Fire Alarm & Supervisory Service, cost $27.00 each.  
(k) N.F.P.A. #72E-1982, Automatic Fire Detection Systems, Cost $27.00 each.  
History: 1984 AACS; 2013 AACS.  
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