This translation is provisional translation for reference, formally refer to the original text.

Ministerial Ordinance of Technical Standards and Requirements for Residential Fire
Alarm Detectors and Residential Automatic Fire Alarm Systems(Ordinance of the Ministry of Internal Affairs and Communications No. 11 of January
25, 2005)
Date of last revision: Ordinance of the Ministry of Internal Affairs and Communications
No. 25 of March 31, 2014
Pursuant to the provisions of Article 5-6 of the Order for Enforcement of the Fire
Service Act (Cabinet Order No. 37 of 1961), this Ministerial Ordinance of TechnicalStandards and Requirements for Residential Fire Alarm Detectors and Residential
Automatic Fire Alarm Systems is provided as follows.
Chapter I

General Provisions (Articles 1 and 2)

Chapter II

Residential Fire Alarm Detectors (Articles 3 to 8)

Chapter III

Residential Automatic Fire Alarm Systems (Articles 9 and 10)

Chapter IV

Miscellaneous Provisions (Article 11)

Supplementary Provisions
Chapter I

General Provisions(Objective)
Article 1
This Ministerial Ordinance provides for the technical standards for “Residential Fire
Alarms Detectors” pursuant to the provisions of Article 21-2, paragraph (2) of the Fire
Service Act (Act No. 186 of 1948) and the provisions of Article 5-6 of the Order for
Enforcement of the Fire Service Act (Cabinet Order No. 37 of 1961) and the technicalstandards for “Residential Automatic Fire Alarm Systems” pursuant to the provisions ofsaid Articles.
(Meanings of Terms)
Article 2
In this Ministerial Ordinance, the meanings of the terms listed in the following items
shall be as defined respectively in those items:

(i)“Residential Fire Alarm Detector” means an alarm designed to detect and reportan occurrence of fire in a residence (meaning a residence as provided for in Article
9-2, paragraph (1) of the Fire Service Act; the same shall apply hereinafter) inadvance or at an early stage and consisting of a sensing unit, a warning unit, etc.

(ii)

“Residential Automatic Fire Alarm Systems” mean a fire reporting systems
designed to detect and report an occurrence of fire in a residence in advance or at
an early stage, consisting of a detector (as provided for in Article 2, item (i) of the
Ministerial Ordinance to Provide for Technical Standards for Detectors andManual call points of Fire Reporting System (Ordinance of the Ministry ofInternal Affairs and Communications No. 17 of 1981)), a relay (as provided for in
Article 2, item (vi) of the Ministerial Ordinance to Provide for TechnicalStandards for Relays (Ordinance of the Ministry of Internal Affairs andCommunications No. 18 of 1981)), a receiver (as provided for in Article 2, item(vii) of the Ministerial Ordinance to Provide for Technical Standards for Receivers(Ordinance of the Ministry of Internal Affairs and Communications No. 19 of
1981); the same shall apply in item (vi)), and an Auxiliary Alarm Unit (a relay or
Auxiliary Alarm Unit shall be excluded if the Fire Reporting System for
Residence is not provided with a relay or Auxiliary Alarm Unit, as appropriate).

(iii) “Ionization Fire Alarm Detector for Residence” means a Residential Fire Alarm
Detector designed to issue a warning that a fire has started (hereinafter referred
to as a “fire warning”) if the ambient air comes to contain smoke of a specific or
higher level of density and activated by a change in the ion current caused bysmoke in the local location.
(iv-1) “Photoelectric Fire Alarm Detector for Residence” means a Residential Fire Alarm
detector designed to issue a fire warning if the ambient air comes to containsmoke of a specific or higher level of density and activated by a change in thereceived amount of light of a photoelectric element caused by smoke in the local
location.
(iv-2) “Constant-temperature-type Residential Fire Alarm Detector” means a
Residential Fire Alarm Detector designed to issue a fire warning if the ambient
temperature in the local location reaches or exceeds a specific temperature.
(iv-3) “Interlocking Fire Alarm Detector for Residence” means a Residential Fire Alarm
Detector provided with the function of transmitting a signal that a fire has
started (hereinafter referred to as a “fire signal”) to another Residential Fire
Alarm Detector if it detects a fire, and the function of issuing a fire warning if it
receives a fire signal from another Residential Fire Alarm Detector.

(v)“Automatic Test Function” means a test function to be implemented by a unit
capable of automatically verifying that the functions of a Residential Fire Alarm
Detector or Residential Fire Alarm Systems are maintained in proper condition.

(vi)“Auxiliary Alarm Unit” means a unit designed to receive a signal from thereceiver of the Residential Automatic Fire Alarm Systems that a fire has started,and issue a fire warning in an auxiliary manner in order to effectively
communicate the fire warning to the persons in the residence.

Chapter II

Residential Fire Alarm Detector(Structures and Functions)
Article 3
The structure and function of a Residential Fire Alarm Detector shall be as provided forin the following items:(i-1) The sensing unit of a Residential Fire Alarm Detector shall detect an occurrence offire from smoke or heat.
(i-2) The sensing unit of a Residential Fire Alarm Detector shall issue a fire warning
without fail, be easy to handle, and allow easy replacement of accessory parts.
(ii) A Residential Fire Alarm Detector shall be designed to be easily mounted andremoved.
(iii-1) A Residential Fire Alarm Detector shall have durability.
(iii-2) A Residential Fire Alarm Detector shall not malfunction due to dust or moisture.
(iv) The outer case of a Residential Fire Alarm Detector shall not cause deformation due
to a change in temperature in the normal state of use.
(v-1) The wiring shall have a sufficient current capacity and be correctly connected.
(v-2) Except for non-polar wiring, measures shall be taken to prevent incorrectconnection.
(vi) The parts of a Residential Fire Alarm Detector shall be mounted properly and firmly
so that they will not malfunction or easily become loose.
(vii) The charged portion of a Residential Fire Alarm Detector shall be thoroughly
protected so that it will not be easily accessible from outside.
(viii) The function of a Residential Fire Alarm Detector shall not cause a significant
variation due to the direction of the air flow the sensing unit receives.
(ix) A Residential Fire Alarm Detector shall not malfunction when the surface of its baseplate is tilted to 45 degrees from the specified mounting position.
(x) Fire warnings shall comply with the following:

(a) The sound pressure of a Residential Fire Alarm Detector issuing a firewarning by means of a warning sound (including warning sounds by voice;the same shall apply hereinafter) shall be 70 decibels (or when the soundpressure is increased by steps of 5 decibels, the sound pressure after
increase) or over according to the categories listed in the following items
when it is measured at a position one meter away forward from the centerof the warning unit in an anechoic room at the voltage specified in therespective items (hereinafter referred to as the “nominal sound pressure”),
and the Residential Fire Alarm Detector shall be capable of maintaining
the state for one minute or longer:(a-a) Residential Fire Alarm Detector which uses a battery as the power source:
the lower limit value of the voltage that ensures the effective operation of
the Residential Fire Alarm Detector; and(a-b) Residential Fire Alarm Detector using electric power supplied from a
power source other than a battery: voltage that is 90% or over and 110%or below of the rated voltage of the power source.
(b) A Residential Fire Alarm Detector issuing a fire warning by means otherthan a warning sound shall be capable of effectively alerting the persons
in the residence to the occurrence of fire.
(x-2) A Residential Fire Alarm Detector issuing a sound other than a fire warning shallnot obstruct effective alerting to the occurrence of fire.
(xi) A Residential Fire Alarm Detector which uses a battery as the power source shallcomply with the following:(a) The battery shall be easy to replace except when the effective life of thebattery is equal to or longer than that of the Residential Fire Alarm
Detector itself.
(b) The Residential Fire Alarm Detector shall be capable of automaticallyindicating that the voltage has dropped to the lower limit of the voltage at
which the Residential Fire Alarm Detector may effectively operate by way ofa flickering indicator for 72 hours or longer or communicating the situation
with a sound for 72 hours or longer.
(xii) A Residential Fire Alarm Detector capable of stopping the fire warning by switch
operation shall automatically recover to the proper monitoring state within 15
minutes after a fire warning has stopped by said switch operation.
(xiii) The light source of a Photoelectric Fire Alarm Detector for Residence shall be asemiconductor element.

(xiv) The sensing unit of an Ionization Fire Alarm Detector for Residence and that of a
Photoelectric Fire Alarm Detector for Residence shall be protected from theingress of insects by means of a net with a mesh size of one millimeter or smaller, aperforated plate with a hole of one millimeter or smaller or other similar means.
(xv) A Residential Fire Alarm Detector using a radioactive substance shall use said
radioactive substance as the sealed radioactive source, and said radioactive
source shall not be directly accessible from outside and shall not easily break inthe event of a fire.
(xvi) A Residential Fire Alarm Detector with an Automatic Test Function shall comply
with the following:(a) The Automatic Test Function shall not exert a deleterious effect on thefunction of the Residential Fire Alarm Detector and shall be capable of verifyingthat the sensing unit of the Residential Fire Alarm Detector is properly
operating.
(b) The time required for the verification stated in (a) shall not be more than 60
seconds except when the sensing unit is capable of detecting a fire while its
function is being verified.
(c) The Residential Fire Alarm Detector shall be capable of automaticallyindicating any malfunction by way of a flickering indicator for 72 hours or longer
or communicating the situation with a sound for 72 hours or longer.
(xvii) A power transformer shall have performance equal to or higher than thetransformer for bells provided for in the Ministerial Ordinance for Determining
Technical Standards for Electric Appliances (Ordinance of the Ministry of
Economy, Trade and Industry No. 34 of 2013), and its capacity shall be capable ofcontinuously withstanding the maximum operating current.
(xviii) The contact interval adjustment unit and other adjustment units shall be fixed sothat they will not vary after adjustment.
(xix)

The sensing unit of a Constant-temperature-type Residential Fire Alarm
Detector shall not cause flaws or strain that could exert a deleterious effect on
the function of the Constant-temperature-type Residential Fire Alarm Detector.

(xx) An Interlocking Residential Fire Alarm Detector shall comply with the following:(a) When an Interlocking Residential Fire Alarm Detector detects an
occurrence of fire, the fire signal issued from the Interlocking Residential
Fire Alarm Detector shall be capable of being transmitted to another
Interlocking Residential Fire Alarm Detector without fail.
(b) An Interlocking Residential Fire Alarm Detector shall be capable ofreceiving a fire signal from another Interlocking Residential Fire Alarm
Detector without fail.
(c) The Interlocking Residential Fire Alarm Detector shall be capable of issuinga fire warning without fail when it receives a fire signal as stated in (b).
(d)

An Interlocking Residential Fire Alarm Detector which is capable ofstopping a fire warning by switch operation shall comply with thefollowing:(d-a) When a fire warning stops by switch operation, the Interlocking
Residential Fire Alarm Detector having detected the occurrence of fireshall automatically recover to the proper monitoring state within 15
minutes after the fire warning stops, and another Interlocking
Residential Fire Alarm Detector shall automatically recover to the propermonitoring state promptly.
(d-b) The fire warning issued by the Interlocking Residential Fire Alarm
Detector having detected the occurrence of fire shall not stop by switch
operation of another Interlocking Residential Fire Alarm Detector.
(e)

A Residential Fire Alarm Detector with radio equipment shall comply
with the following:(e-a) The radio equipment shall be those for radio stations of a small-power
security system provided for in Article 49-17 of the Rules on Radio
Equipment (Radio Regulatory Commission Rules No. 18 of 1950).
(e-b) The value of the electric field intensity of the transmitted signal shall beequal to or higher than the design value when it is measured at a position
three meters away from said Residential Fire Alarm Detector.
(e-c) When a Residential Fire Alarm Detector has the function of receiving
radio waves, the value of the lowest electric field intensity at which asignal transmitted from a position three meters away from said
Residential Fire Alarm Detector may be received shall be equal to or
lower than the design value.
(e-d) The receipt and transmission of fire signals by the radio equipment shallcomply with the following:
1. The time required from the receipt of a fire signal to its transmission by theradio equipment of the Residential Fire Alarm Detector having detected theoccurrence of fire to transmit a fire signal shall not be more than 5 seconds.
2. As long as the radio equipment is receiving a fire signal, the radio equipment
shall intermittently transmit said fire signal except when the radioequipment has the function of verifying the receipt of a fire signal fromanother Residential Fire Alarm Detector or a similar function.
(e-e) A device with which the transmission of fire signals may be easily verified
shall be installed.
(e-f) The radio equipment shall transmit signals with which the radio
equipment may be distinguished from other appliances.
(Auxiliary Systems)
Article 4
A Residential Fire Alarm Detector shall not be provided with any auxiliary system that
could exert a deleterious effect on its functions.
(Tests)
Article 5(1) A Residential Fire Alarm Detector must pass the tests listed in the following items:(i-1) Power voltage variation test: A Residential Fire Alarm Detector shall not
malfunction when the voltage of the power source varies within the range of 90%
or over and 110% or below of the rated voltage (or the lower limit or over and theupper limit or below of the voltage variation of supplied power in case of a
Residential Fire Alarm Detector which receives power from another Residential
Fire Alarm Detector or a Residential Fire Alarm Detector using a battery).
(i-2) Current consumption measurement test: The current consumption of a Residential
Fire Alarm Detector which uses a battery as the power source shall be equal to or
lower than the design value when it is measured at the rated voltage.
(i-3) Air flow test: An Ionization Fire Alarm Detector for Residence shall not issue a firewarning when it is placed in an air flow travelling at a wind velocity of five meters
per second in the energized state.
(ii) Outside light test: A Photoelectric Fire Alarm Detector for Residence shall not issue
a fire warning when it is subjected to ten cycles of being irradiated with outside
light of 5,000 lux from an incandescent lamp for 10 seconds and not being
irradiated for 10 seconds and then irradiated with the same light for fiveconsecutive minutes.
(iii-1) Ambient temperature test: A Residential Fire Alarm Detector shall not
malfunction at an ambient temperature of 0ºC or over and 40ºC or below (or when
the temperature range is extended by steps of 10ºC, the temperature range after
extension; hereinafter referred to as the “operating temperature range”).

(iii-2) Dropping test: A Residential Fire Alarm Detector (excluding Residential Fire
Alarm Detectors which do not use any terminal or wire (limited to a wire usedinstead of a terminal) and Residential Fire Alarm Detectors with an Automatic
Test Function) shall not malfunction in a test in which clear water is dropped
onto the surface of its base plate in the energized state at a rate of 5 cm3 perminute.
(iv) Corrosion test: A Residential Fire Alarm Detector with corrosion resistance shall not
malfunction in a test in which the Residential Fire Alarm Detector in the energizedstate is allowed to stand for four days in sulfur dioxide produced by putting 500
milliliters of thiosulfuric acid solution with a density of 40 grams per liter in a
5-liter tester and adding twice a day 10 milliliters of solution prepared by dissolving
156 milliliters of solution, in which 1 of sulfuric acid is dissolved in 35 of distilledwater in the volume ratio, in 1,000 milliliters of water. In this case, said test shallbe performed at a temperature of 45ºC.
(v) Vibration test: A Residential Fire Alarm Detector shall maintain the propermonitoring state when vibrations with a total amplitude of 1 millimeter are appliedin a given direction in the energized state for 10 consecutive minutes at a rate of
1,000 vibrations per minute, and shall be free of structural or functional problems
when vibrations with a total amplitude of 4 millimeters are applied in a given
direction in the non-energized state for 60 consecutive minutes at a rate of 1,000
vibrations per minute.
(vi-1) Impact test: A Residential Fire Alarm Detector shall not malfunction when an
impact with maximum gravitational acceleration of 50G is applied five times in agiven direction.
(vi-2) Dust test: A Residential Fire Alarm Detector shall not malfunction when it is
exposed in the energized state to air containing the five types of substances
specified in “Z 8901” of the Japanese Industrial Standards provided for in Article
17, paragraph (1) of the Industrial Standardization Act (Act No. 185 of 1949),
with the density of 20% per 30 centimeters in the dimming rate, for 15 minutes.
In this case, said test shall be performed at a temperature of 20ºC and at a
relative humidity of 40%.
(vii) Impulse voltage test: A Residential Fire Alarm Detector with an external wiring
terminal shall not malfunction when the following tests are performed on it in
the energized state for 15 seconds:(a) Test in which a voltage of 500 volts is applied from a power source with aninternal resistance of 50 ohms at a pulse width of 1 microsecond and at a

cycle period of 100 hertz; and(b) Test in a voltage of 500 volts is applied from a power source with an internal
resistance of 50 ohms at a pulse width of 0.1 microsecond and at a cycle
period of 100 hertz.
(viii) Humidity test: A Residential Fire Alarm Detector shall maintain the propermonitoring state when it is allowed to stand in the energized state in air kept at atemperature of 40ºC and at a relative humidity of 95% for four days.
(ix) Insulation resistance test: The insulation resistance across the isolated terminals
of a Residential Fire Alarm Detector and across its charged portion and metallic
outer case shall be 50 megohms or over when it is measured using a 500 V DC
insulation resistance tester.
(x) Dielectric strength test: For the dielectric strength across the charged portion andmetallic outer case of a Residential Fire Alarm Detector, the Residential Fire Alarm
Detector shall withstand an effective alternating current voltage of 500 volts (or1,000 volts when the rated voltage is over 60 volts and 150 volts or below, or thevoltage calculated by multiplying the rated voltage by 2 and adding 1,000 volts
when the rated voltage exceeds 150 volts) close to a 50- or 60-hertz sine wave for 1
minute.
(2) The tests provided for in items (i-3), (ii), (ix) and (x) of the preceding paragraphshall be performed under the following conditions:(i) Temperature: 5ºC or over and 35º or below(ii) Relative humidity: 45% or over and 85% or below(Sensitivity of Ionization Fire Alarm Detector for Residence)
Article 6(1) The sensitivity of an Ionization Fire Alarm Detector for Residence must pass thetests listed in the following items (hereinafter referred to as the “Sensitivity Tests
for Ionization Fire Alarm Detectors for Residence” in this Article) when the valuesof “K”, “V”, “T”, and “t” are provided for as shown in the table below according to its
category:
Category

K

V

T

t

Type 1

0.19

20 or over and60

5Type 2

0.24

40 or below

Note: “K” represents the rate of change of the nominal operating ionization current,
which means the rate of change of the ionization current due to smoke when adirect current voltage of 20 volts is applied across parallel plate electrodes (theelectrodes are set with an interval of 2 centimeters between them, and one
electrode is americium 241 of 303.4 kilobecquerels mounted on a round metallic
plate of 5 centimeters in diameter).
(i) Operation test
An Ionization Fire Alarm Detector for Residence shall issue a fire warning within “T”
seconds when it is placed in an air flow containing smoke with a density of 1.35K inthe rate of change of the ionization current and travelling at a wind velocity of “V”
centimeters per second.
(ii) Non-operation test
An Ionization Fire Alarm Detector for Residence shall not operate within “t” minutes
when it is placed in an air flow containing smoke with a density of 0.65K in the rate ofchange of the ionization current and travelling at a wind velocity of “V” centimeters
per second.
(2) The Sensitivity Tests for Ionization Fire Alarm Detectors for Residence shall be
performed after they are allowed to stand in forced draft kept at the same
temperature as room temperature for 30 minutes.
(3) The provision of the preceding Article, paragraph (2), shall apply mutatis mutandis
to the Sensitivity Tests for Ionization Fire Alarm Detectors for Residence.
(Sensitivity of Photoelectric Fire Alarm Detector for Residence)
Article 7(1) The sensitivity of a Photoelectric Fire Alarm Detector for Residence must pass thetests listed in the following items (referred to as the “Sensitivity Tests for
Photoelectric Fire Alarm Detectors for Residence” in the following paragraph) whenthe values of “K”, “V”, “T”, and “t” are provided for as shown in the table below
according to its category:Category

K

V

T

t

Type 1

5

20 or over and60

5Type 2

1040 or below

Note: “K” represents the nominal operating density expressed in the dimming rate.
In this case, the dimming rate shall be measured using an incandescent lamp witha color temperature of 2,800ºC as the light source and a light receiving unit close toluminous efficacy.
(i) Operation test

A Photoelectric Fire Alarm Detector for Residence shall issue a fire warning within “T”
seconds when it is placed in an air flow containing smoke with a density of 1.5K in thedimming rate per meter and travelling at a wind velocity of “V” centimeters per
second.
(ii) Non-operation test
A Photoelectric Fire Alarm Detector for Residence shall not operate within “t”
minutes when it is placed in an air flow containing smoke with a density of 0.5K inthe dimming rate per meter and travelling at a wind velocity of “V” centimeters per
second.
(2) The provisions of Article 5, paragraph (2) and Article 6, paragraph (2) shall apply
mutatis mutandis to the Sensitivity Tests for Photoelectric Fire Alarm Detectors for
Residence.
(Sensitivity of Constant-temperature-type Residential Fire Alarm Detector)
Article 7-2(1) The sensitivity of a Constant-temperature-type Residential Fire Alarm Detector
must pass the tests listed in the following items:(i) Operation test
A Constant-temperature-type Residential Fire Alarm Detector shall issue a firewarning within 40 seconds (or within “t” seconds set by the equation shown below
in the case of a Constant-temperature-type Fire Alarm Detector to be mounted on
the wall) when it is placed in a vertical air flow travelling at a wind velocity of 1
meter at a temperature of 81.25ºC.
t = 40log10 (1 + (65 – θr)/16.25)/log10 (1 + 65/16.25)
Note: θr represents room temperature (ºC).
(ii) Non-operation test
A Constant-temperature-type Residential Fire Alarm Detector shall not operate
within 10 minutes when it is placed in a vertical air flow travelling at a windvelocity of 1 meter at a temperature of 50ºC.
(2) The provisions of Article 5, paragraph (2) and Article 6, paragraph (2) shall apply
mutatismutandisto thesensitivity tests for Constant-temperature-type

Residential Fire Alarm Detectors.
(Marking)
Article 8(1) The information listed in the following items shall be marked in easy-to-seepositions on all Residential Fire Alarm Detectors in an indelible manner.
However, the information of items (vi) and (vii) shall be marked with charactersof a size easily identifiable in the mounted state according to the provision of
Article 5-7, paragraph (1), item (ii) of the Order for Enforcement of the Fire
Service Act, and the information of item (xi) shall be marked on the outside
surface.
(i) Identification of the photoelectric type, ionization type, or constant-temperature type
and the characters “Residential Fire Alarm Detector”(ii-1) Category, if any(ii-2) Model and model number(iii) Year of manufacture(iv-1) Name or company name of manufacturer(iv-2) Outline of operation method (excluding operation methods described in an
operation manual or document of similar nature)(v) Characters “Corrosion Resistant” when the Residential Fire Alarm Detector has
corrosion resistance(vi) Timing for replacement (excluding Residential Fire Alarm Detectors with an
Automatic Test Function)(vii) Characters “With Automatic Test Function” when the Residential Fire Alarm
Detector has an Automatic Test Function(viii) Characters “Interlocking (Type)” for Interlocking Residential Fire Alarm Detectors(ix) Characters “Radio (Type)” for Interlocking Residential Fire Alarm Detectors withradio equipment(x) Type and voltage of the battery when the Residential Fire Alarm Detector uses abattery as the power source(xi) Information listed in the following items for Ionization Fire Alarm Detectors for
Residence:(a) Marking indicating that it is a certified appliance as provided for in Article
12-5, paragraph (1) of the Act on Prevention of Radiation Disease Due toRadioisotopes, etc. (Act No. 167 of 1957)(b) Caution marking concerning disposal(xii) Nominal sound pressure (limited to Residential Fire Alarm Detectors specified witha nominal sound pressure)(xiii) Operating temperature range (limited to Residential Fire Alarm Detectors
specified with an operating temperature range)(2) Terminal symbols shall be marked in easy-to-see positions on terminal plates usedfor Residential Fire Alarm Detectors (excluding non-polar Residential Fire Alarm
Detectors) in an indelible manner.
Chapter III

Residential Automatic Fire Alarm Systems(Fire Warnings by Auxiliary Alarm Unit of Residential Automatic Fire Alarm Systems)
Article 9Fire warnings by an Auxiliary Alarm Unit of a Residential Automatic Fire Alarm
Systems shall comply with the following:(i) The sound pressure of an Auxiliary Alarm Unit of a Residential Automatic Fire
Alarm Systems issuing a fire warning by means of a warning sound shall be 70
decibels or over when it is measured at a position 1 meter away forward from thecenter of the alarm unit of the Auxiliary Alarm Unit of the Residential Automatic Fire
Alarm Systems in an anechoic room with the voltage of the power source set at 90% orover and 110% or below of the rated voltage, which state can be maintained for 1
minute or longer.
(ii) A Residential Automatic Fire Alarm Systems issuing a fire warning by means otherthan a warning sound shall be capable of effectively alerting the persons in theresidence to the occurrence of fire.
(Marking)
Article 10
The information listed in the following items shall be marked in easy-to-see positions on
all Residential Automatic Fire Alarm Systems in an indelible manner.
(i) Characters “Auxiliary Alert Unit”(ii) Year of manufacture(iii) Name or company name of manufacturer(iv) Information that a third party verified the conformity to this Ministerial Ordinance,
and the name of said third party, if such verification has been made
Chapter IV

Miscellaneous Provisions(Special Provision for Standards)
Article 11
In the event that the Minister of Internal Affairs and Communications recognizes that
the Auxiliary Alarm Unit of any Residential Fire Alarm Detector or Residential

Automatic Fire Alarm System that utilizes new technology development has
performance equal to or higher than the performance conforming to the provisions of
this Ministerial Ordinance judging from its shape, structure, material, and performance,
said Auxiliary Alarm Unit may be handled according to a technical standard set by the
Minister of Internal Affairs and Communications, regardless of the provisions of this
Ministerial Ordinance.
Supplementary Provisions
This Ministerial Ordinance shall come into effect on the date of enforcement (June 1,2006) stipulated in Supplementary Provisions Article 1, item (ii) of the Act on Partial
Revision of the Fire Service Act and the Act on the Prevention of Disaster in Petroleum
Industrial Complex and Other Petroleum Facilities (Act No. 65 of 2004).
Supplementary Provisions (Ordinance of the Ministry of Internal Affairs andCommunications No. 25 of March 27, 2013)(Date of Enforcement)
Article 1
This Ministerial Ordinance shall come into effect on April 1, 2014.
(Transitional Measure)
Article 2With regard to technical standards for Residential Fire Alarm Detectors which are or
are to be installed in a residence (meaning a residence provided for in Article 9-2,
paragraph (1) of the Fire Service Act; the same shall apply hereinafter in this Article)
currently existing or in the process of being newly constructed, expanded, reconstructed,
transferred, repaired, or remodeled at the time of the enforcement of this Ministerial
Ordinance or a residence whose new construction, expansion, reconstruction, transfer,
repair, or remodeling is scheduled to start no later than March 31, 2019 and which do
not conform to the provisions of Articles 2, 3, 5, 6, 7-2, 8, and 11 of the Ministerial
Ordinance of Technical Standards and Requirements for Residential Fire Alarm
Detectors and Residential Automatic Fire Alarm Systems after the revision as provided
in Article 1, the provisions then in force remain applicable notwithstanding said revised
provisions.
Supplementary Provisions (Ordinance of the Ministry of Internal Affairs andCommunications No. 25 of March 31, 2014)
This Ministerial Ordinance shall come into effect on the date of proclamation.