Fire Alarm and Detection Systems

Grounded in the retrieved California Fire Code — click a citation to read the verbatim passage:

• CFC § 9-1 High relevance — show source text

  SAFETY SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1

  901 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

  902 Fire Pump and Riser Room Size . . . . . . . . . . . . . . . . . . 9-7

  903 Automatic Sprinkler Systems . . . . . . . . . . . . . . . . . . . . 9-8

  904 Alternative Automatic Fire-Extinguishing Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-17

  905 Standpipe Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-20

  906 Portable Fire Extinguishers . . . . . . . . . . . . . . . . . . . . . 9-22

  907 Fire Alarm and Detection Systems . . . . . . . . . . . . . . . 9-25

  908 Emergency Alarm Systems . . . . . . . . . . . . . . . . . . . . . 9-43

  909 Smoke Control Systems . . . . . . . . . . . . . . . . . . . . . . . . 9-43

  910 Smoke and Heat Removal . . . . . . . . . . . . . . . . . . . . . . 9-51

  911 Fire Command Center. . . . . . . . . . . . . . . . . . . . . . . . . . 9-53

  912 Fire Department Connections. . . . . . . . . . . . . . . . . . . 9-54

  913 Fire Pumps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-55

  914 Emergency Responder Safety Features . . . . . . . . . . 9-56

  915 Carbon Monoxide (CO) Detection. . . . . . . . . . . . . . . . 9-56

  xxii 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  916 Gas Detection Systems . . . . . . . . . . . . . . . . . . . . . . . . 9-58

  917 Mass Notification Systems . . . . . . . . . . . . . . . . . . . . . 9-59

  918 Emergency Responder Communication Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-59

  CHAPTER 10 MEANS OF EGRESS . . . . . . . . . . . . . . . . . . . . 10-1

  1001 Administration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5

• CFC § 9-7 High relevance — show source text

  CHAPTER 9 FIRE PROTECTION AND LIFE SAFETY

  SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

  901 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

  902 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11

  903 Automatic Sprinkler Systems. . . . . . . . . . . . . . . . . . . . 9-13 904 Alternative Automatic Fire-Extinguishing Systems . 9-24 905 Standpipe Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-28 906 Portable Fire Extinguishers. . . . . . . . . . . . . . . . . . . . . . 9-31 907 Fire Alarm and Detection Systems . . . . . . . . . . . . . . . 9-39 908 Emergency Alarm Systems . . . . . . . . . . . . . . . . . . . . . . 9-57 909 Smoke Control Systems. . . . . . . . . . . . . . . . . . . . . . . . . 9-57 910 Smoke and Heat Removal. . . . . . . . . . . . . . . . . . . . . . . 9-66

  911 Explosion Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-67 912 Fire Department Connections . . . . . . . . . . . . . . . . . . . 9-69 913 Fire Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-70 914 Fire Protection Based on Special Detailed Requirements of Use and Occupancy . . . . . . . . . . 9-71 915 Carbon Monoxide (CO) Detection . . . . . . . . . . . . . . . . 9-75 916 Gas Detection Systems . . . . . . . . . . . . . . . . . . . . . . . . . 9-77 917 Mass Notification Systems . . . . . . . . . . . . . . . . . . . . . . 9-78

  CHAPTER 10 MEANS OF EGRESS. . . . . . . . . . . . . . . . . . . . 10-5

  1001 Administration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5

  1002 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5

  1003 General Means of Egress . . . . . . . . . . . . . . . . . . . . .

• CFC § 906.10 High relevance — show source text

  [F] 906.10 Wheeled units. Wheeled fire extinguishers shall be conspicuously located in a designated location.

  SECTION 907—FIRE ALARM AND DETECTION SYSTEMS

  [F] 907.1 General. This section covers the application, installation, performance and maintenance of fire alarm systems and their components.

  [F] 907.1.1 Construction documents. Construction documents for fire alarm systems shall be of sufficient clarity to indicate the location, nature and extent of the work proposed and show in detail that it will conform to the provisions of this code, the Califor- nia Fire Code ; and relevant laws, ordinances, rules and regulations, as determined by the fire code official.

  [F] 907.1.2 Fire alarm shop drawings. Shop drawings for fire alarm systems shall be prepared in accordance with NFPA 72 and submitted for review and approval prior to system installation.

  [F] 907.1.3 Equipment. Systems and components shall be California State Fire Marshal listed and approved in accordance with California Code of Regulations, Title 19, Division 1 for the purpose for which they are installed.

  [F] 907.1.4 Fire-walls and fire barrier walls. For the purpose of Section 907 fire walls and fire barrier walls shall not define separate buildings.

  [F] 907.1.5 Fire alarm use. A fire alarm system shall not be used for any purpose other than fire warning or mass notification and where permitted by NFPA 72.

  [F] 907.2 Where required—new buildings and structures. An approved fire alarm system installed in accordance with the provisions of this code and NFPA 72 shall be provided in new buildings and structures in accordance with Sections 907.2.1 through 907.2.29 and provide occupant notification in accordance with Section 907.5, unless other requirements are provided by another section of this code.

  Not fewer than one manual fire alarm box shall be provided in an approved location to initiate a fire alarm signal for fire alarm systems employing automatic fire detectors or waterflow detection devices. Where other sections of this code allow elimination of fire alarm boxes due to sprinklers, or automatic fire alarm systems, a single fire alarm box shall be installed at a location approved by the enforcing agency.

  Exceptions:

  1. The manual fire alarm box is not required for fire alarm control units dedicated to elevator recall control and supervisory service and fire sprinkler monitoring.
  2. The manual fire alarm box is not required for Group R-2 occupancies unless required by the fire code official to provide a means for fire watch personnel to initiate an alarm during a sprinkler system impairment event. Where provided, the manual fire alarm box shall not be located in an area that is open to the public. 3. The manual fire alarm box is not required to be installed when approved by the fire code official.
• CFC § 914.3.1.2.1 High relevance — show source text

  914.3.1.2.1 Fire pumps. Redundant fire pump systems shall be required for high-rise buildings having an occupied floor more than 200 feet above the lowest level of fire department vehicle access. Each fire pump system shall be capable of automatically supplying the required demand for the automatic sprinkler and standpipe systems.

  914.3.2 Secondary water supply. An automatic secondary on-site water supply having a usable capacity not less than the hydraulically calculated sprinkler demand, including the hose stream requirement, shall be provided for high-rise buildings and Group I-2 occupancies having occupied floors located more than 75 ft above the lowest level of fire department vehicle access assigned to Seismic Design Category C, D, E or F as determined by the California Building Code . An additional fire pump shall not be required for the secondary water supply unless needed to provide the minimum design intake pressure at the suction side of the fire pump supplying the automatic sprinkler system. The secondary water supply shall have a useable capacity of not less than the hydraulically calculated sprinkler demand plus 100 GPM for the inside hose stream, allowance for a duration of not less than 30 minutes as determined by the occupancy hazard classification in accordance with NFPA 13 , whichever is greater. The Class I stand- pipe system demand shall not be required to be included in the secondary on-site water supply calculations. In no case shall the secondary on-site water supply be less than 15,000 gallons.

  914.3.3 Fire alarm system. A fire alarm system shall be provided in accordance with Section 907.2.13.

  914.3.4 Automatic smoke detection. Smoke detection shall be provided in accordance with Section 907.2.13.1.

  914.3.5 Emergency voice/alarm communication system. An emergency voice/alarm communication system shall be provided in accordance with Section 907.5.2.2.

  914.3.6 Emergency responder communication coverage. In-building, two-way emergency responder communication coverage shall be provided in accordance with Section 510.

  914.3.7 Fire command. A fire command center complying with Section 508 shall be provided in a location approved by the fire department.

  914.3.8 Smoke control.

  914.3.8.1 Smoke control system. All portions of high-rise buildings shall be provided with a smoke control system in accordance with California Building Code, Section 909.

  914.3.8.2 Smokeproof exit enclosures. Every exit enclosure in high-rise buildings shall comply with California Building Code, Sections 909.20 and 1023.12. Every required stairway in Group I-2 occupancies serving floors more than 75 feet (22 860 mm) above the lowest level of fire department vehicle access shall comply with Sections 909.20 and 1023.12 of the California Building Code.

  Exception: In high-rise buildings, exit enclosures serving three or less adjacent floors where one of the adjacent floors is the level of exit discharge.

  914.4 Atriums. Atriums shall comply with Sections 914.4.1 and 914.4.2.

  914.4.1 Automatic sprinkler system. An approved automatic sprinkler system shall be installed throughout the entire building.

• CFC § 903.2.1 High relevance — show source text

  903.2.1 Separation required. Where the work area is in any attached dwelling unit in Group R-3 or any multiple single-family dwelling (townhouse), walls separating the dwelling units that are not continuous from the foundation to the underside of the roof sheathing shall be constructed to provide a continuous fire separation using construction materials consistent with the existing wall or complying with the requirements for new structures. Work shall be performed on the side of the dwelling unit wall that is part of the work area.

  Exception: Where alterations or repairs do not result in the removal of wall or ceiling finishes exposing the structure, walls are not required to be continuous through concealed floor spaces.

  903.3 Interior finish. Interior finish in exits serving the work area shall comply with Section 802.4 between the highest floor on which there is a work area to the floor of exit discharge.

  903.4 Enhanced classroom acoustics. In Group E occupancies, where the work area is a Level 3 alteration, enhanced classroom acoustics shall be provided in all classrooms with a volume of 20,000 cubic feet (565 m [3] ) or less. Enhanced classroom acoustics shall comply with the reverberation time in Section 808 of ICC A117.1.

  2025 CALIFORNIA EXISTING BUILDING CODE 9-3

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  �

  �

  ALTERATIONS—LEVEL 3

  SECTION 904—FIRE PROTECTION

  904.1 Automatic sprinkler systems. An automatic sprinkler system shall be provided in accordance with Section 903 of the California Building and California Fire Codes.

  904.2 Fire alarm and detection systems. Fire alarm and detection shall be provided in accordance with Section 907 of the California Building Code as required for new construction in accordance with California Fire Code Sections 907 and 1103.7.

  904.2.1 Systems out of service. Existing fire alarm and detection systems shall be maintained in accordance with Section 901.7 of the California Fire Code. Site fire protection during construction shall be in accordance with Chapter 33 of the California Building and California Fire Codes.

  SECTION 905—MEANS OF EGRESS

  905.1 General. The means of egress shall comply with the requirements of Section 804 except as specifically required in Sections 905.2 and 905.3.

  905.2 Means-of-egress lighting. Means of egress from the highest work area floor to the floor of exit discharge shall be provided with artificial lighting within the exit enclosure in accordance with the requirements of the California Building Code .

  905.3 Exit signs. Means of egress from the highest work area floor to the floor of exit discharge shall be provided with exit signs in accordance with the requirements of the California Building Code .

  905.4 Two-way communications systems. In buildings with elevator service, a two-way communication system shall be provided where required by Section 1009.8 of the California Building Code .

  SECTION 906—STRUCTURAL

  [BS] 906.1 General. Where buildings are undergoing Level 3 alterations, the provisions of this section shall apply.

• CFC § 2703.10.4.4.4 High relevance — show source text

  2703.10.4.4.4 Corrosive atmospheres. Where corrosive atmospheres exist, exhaust duct sprinklers and pipe fittings shall be manufactured of corrosion-resistant materials or coated with approved materials.

  2703.10.4.4.5 Maintenance and inspection. Access to sprinklers in exhaust ducts shall be provided for periodic inspection and maintenance.

  2703.10.5 Sprinkler alarms and supervision. Automatic sprinkler systems shall be electrically supervised and provided with alarms in accordance with Chapter 9. Automatic sprinkler system alarm and supervisory signals shall be transmitted to the emergency control station.

  2025 CALIFORNIA FIRE CODE 27-5

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  SEMICONDUCTOR FABRICATION FACILITIES

  2703.11 Manual fire alarm system. A manual fire alarm system shall be installed throughout buildings containing a Group H-5 occupancy. Activation of the alarm system shall initiate a local alarm and transmit a signal to the emergency control station. Manual fire alarm systems shall be designed and installed in accordance with Section 907.

  2703.12 Emergency alarm system. Emergency alarm systems shall be provided in accordance with Sections 2703.12.1 through 2703.12.3, Section 5004.9 and Section 5005.4.4. The maximum allowable quantity per control area provisions of Section 5004.1 shall not apply to emergency alarm systems required for HPM.

  2703.12.1 Where required. Emergency alarm systems shall be provided in the areas indicated in Sections 2703.12.1.1 through 2703.12.1.3.

  2703.12.1.1 Service corridors. An approved emergency alarm system shall be provided in service corridors, with not less than one alarm device in the service corridor.

  2703.12.1.2 Corridors and interior exit stairways and ramps. Emergency alarms for corridors, interior exit stairways and ramps and exit passageways shall comply with Section 5005.4.4.

  2703.12.1.3 Liquid storage rooms, HPM rooms and gas rooms. Emergency alarms for liquid storage rooms, HPM rooms and gas rooms shall comply with Section 5004.9.

  2703.12.2 Alarm-initiating devices. An approved emergency telephone system, local alarm manual pull stations, or other approved alarm-initiating devices are allowed to be used as emergency alarm-initiating devices.

  2703.12.3 Alarm signals. Activation of the emergency alarm system shall sound a local alarm and transmit a signal to the emergency control station.

  2703.13 Gas detection systems. A gas detection system complying with Section 916 shall be provided for HPM gases where the physiological warning threshold level of the gas is at a higher level than the accepted permissible exposure limit (PEL) for the gas and for flammable gases in accordance with Sections 2703.13.1 through 2703.13.2.2.

  2703.13.1 Where required. A gas detection system shall be provided in the areas identified in Sections 2703.13.1.1 through 2703.13.1.4.

  2703.13.1.1 Fabrication areas. A gas detection system shall be provided in fabrication areas where HPM gas is used in the fabrication area.

  2703.13.1.2 HPM rooms. A gas detection system shall be provided in HPM rooms where HPM gas is used in the room.

• CFC § 415.11.9 High relevance — show source text

  [F] 415.11.9 Manual fire alarm system. An approved manual fire alarm system shall be provided throughout buildings containing Group H-5. Activation of the alarm system shall initiate a local alarm and transmit a signal to the emergency control station. The fire alarm system shall be designed and installed in accordance with Section 907.

  [F] 415.11.10 Emergency control station. An emergency control station shall be provided in accordance with Sections 415.11.10.1 through 415.11.10.3.

  [F] 415.11.10.1 Location. The emergency control station shall be located on the premises at an approved location outside the fabrication area.

  [F] 415.11.10.2 Staffing. Trained personnel shall continuously staff the emergency control station.

  [F] 415.11.10.3 Signals. The emergency control station shall receive signals from emergency equipment and alarm and detection systems. Such emergency equipment and alarm and detection systems shall include, but not be limited to, the following where such equipment or systems are required to be provided either in this chapter or elsewhere in this code:

  1. Automatic sprinkler system alarm and monitoring systems.

  2. Manual fire alarm systems.

  3. Emergency alarm systems.

  4. Gas detection systems.

  5. Smoke detection systems.

  6. Emergency power system.

  7. Automatic detection and alarm systems for pyrophoric liquids and Class 3 water-reactive liquids required in Section 2705.2.3.4 of the California Fire Code .

  8. Exhaust ventilation flow alarm devices for pyrophoric liquids and Class 3 water-reactive liquids cabinet exhaust ventilation systems required in Section 2705.2.3.4 of the California Fire Code .

  [F] 415.11.11 Emergency power system. An emergency power system shall be provided in Group H-5 occupancies in accordance with Section 2702. The emergency power system shall supply power automatically to the electrical systems specified in Section 415.11.11.1 when the normal electrical supply system is interrupted.

  [F] 415.11.11.1 Required electrical systems. Emergency power shall be provided for electrically operated equipment and connected control circuits for the following systems:

  1. HPM exhaust ventilation systems.

  2. HPM gas cabinet ventilation systems.

  3. HPM exhausted enclosure ventilation systems.

  4. HPM gas room ventilation systems.

  5. HPM gas detection systems.

  6. Emergency alarm systems.

  7. Manual and automatic fire alarm systems.

  8. Automatic sprinkler system monitoring and alarm systems.

  9. Automatic alarm and detection systems for pyrophoric liquids and Class 3 water-reactive liquids required in Section 2705.2.3.4 of the California Fire Code .

  10. Flow alarm switches for pyrophoric liquids and Class 3 water-reactive liquids cabinet exhaust ventilation systems required in Section 2705.2.3.4 of the California Fire Code .

  11. Electrically operated systems required elsewhere in this code or in the California Fire Code applicable to the use, storage or handling of HPM.

  [F] 415.11.11.2 Exhaust ventilation systems. Exhaust ventilation systems are allowed to be designed to operate at not less than one-half the normal fan speed on the emergency power system where it is demonstrated that the level of exhaust will maintain a safe atmosphere.

• CFC § 6004.2.2.7.4 Medium relevance — show source text

  6004.2.2.7.4 Stationary tanks. Stationary tanks shall be labeled with the maximum rate of release for the compressed gas contained based on valves or fittings that are inserted directly into the tank. Where multiple valves or fittings are provided, the maximum flow rate of release for valves or fittings with the highest flow rate shall be indicated. Where liquefied compressed gases are in contact with valves or fittings, the liquid flow rate shall be utilized for computation purposes. Flow rates indicated on the label shall be converted to cubic feet per minute (cfm/min) (m [3] /s) of gas at normal temperature and pressure (NTP).

  6004.2.2.7.5 Portable tanks and cylinders. The maximum flow rate of release for portable tanks and cylinders shall be calculated based on the total release from the cylinder or tank within the time specified in Table 6004.2.2.7.5. Where portable tanks or cylinders are equipped with approved excess flow or reduced flow valves, the worst-case release shall be determined by the maximum achievable flow from the valve as determined by the valve manufacturer or compressed gas supplier. Reduced flow and excess flow valves shall be permanently marked by the valve manufacturer to indicate the maximum design flow rate. Such markings shall indicate the flow rate for air under normal temperature and pressure (NTP).

  60-6 2025 CALIFORNIA FIRE CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  HIGHLY TOXIC AND TOXIC MATERIALS

  TABLE 6004.2.2.7.5—RATE OF RELEASE FOR CYLINDERS AND PORTABLE TANKS	Col2	Col3
  VESSEL TYPE	NONLIQUEFIED (minutes)	LIQUEFIED (minutes)
  Containers	5	30
  Portable tanks	40	240

  6004.2.2.8 Emergency power. Emergency power shall be provided for the following systems in accordance with Section 603:

  1. Exhaust ventilation system.

  2. Treatment system.

  3. Gas detection system.

  4. Smoke detection system.

  5. Temperature control system.

  6. Fire alarm system.

  7. Emergency alarm system.

  6004.2.2.8.1 Fail-safe engineered systems. Emergency power shall not be required for mechanical exhaust ventilation, treatment systems and temperature control systems where approved fail-safe engineered systems are installed.

  6004.2.2.9 Automatic fire detection system—highly toxic compressed gases. An approved automatic fire detection system shall be installed in rooms or areas where highly toxic compressed gases are stored or used. Activation of the detection system shall sound a local alarm. The fire detection system shall comply with Section 907.

  6004.2.2.10 Gas detection system. A gas detection system complying with Section 916 shall be provided to detect the presence of gas at or below the PEL or ceiling limit of the gas for which detection is provided. The system shall be capable of monitoring the discharge from the treatment system at or below one-half the IDLH limit and shall initiate a response in accordance with Sections 6004.2.2.10.1 through 6004.2.2.10.3 if the gas detection alarm is activated.

  Exception: A gas detection system is not required for toxic gases when the physiological warning threshold level for the gas is at a level below the accepted PEL for the gas.

• CFC § 901.1 Medium relevance — show source text

  9 FIRE PROTECTION AND LIFE SAFETY SYSTEMS

  User notes:

  About this chapter: Chapter 9 prescribes the minimum requirements for active fire protection equipment systems to perform the functions of detecting a fire, alerting the occupants or fire department of a fire emergency, mass notification, gas detection, controlling smoke and controlling or extinguishing the fire. Generally, the requirements are based on the occupancy, the height and the area of the building, because these are the factors that most affect firefighting capabilities and the relative hazard of a specific building or portion thereof. This chapter parallels and is substantially duplicated in Chapter 9 of the California Fire Code.

  SECTION 901—GENERAL

  901.1 Scope. The provisions of this chapter shall specify where fire protection and life safety systems are required and shall apply to the design, installation and operation of fire protection and life safety systems.

  901.2 Fire protection systems. Fire protection and life safety systems shall be installed, repaired, operated and maintained in accordance with this code and the California Fire Code .

  Any fire protection or life safety system for which an exception or reduction to the provisions of this code has been granted shall be considered to be a required system.

  Exception: Any fire protection or life safety system or portion thereof not required by this code shall be permitted to be installed for partial or complete protection provided that such system meets the requirements of this code.

  901.3 Modifications. Persons shall not remove or modify any fire protection system installed or maintained under the provisions of this code or the California Fire Code without approval by the building official.

  901.4 Threads. Threads provided for fire department connections to automatic sprinkler systems, standpipes, yard hydrants or any other fire hose connection shall be compatible with the connections used by the local fire department.

  901.5 Administration of installation acceptance tests. Fire protection systems shall be tested in accordance with the requirements of this code and the California Fire Code . Where required, the tests shall be conducted in the presence of the building official. Tests required by this code, the California Fire Code and the standards listed in this code shall be conducted at the expense of the owner or the owner’s authorized agent. It shall be unlawful to occupy portions of a structure until the required fire protection systems within that portion of the structure have been tested and approved.

  901.6 Supervisory service. Where required, fire protection systems shall be monitored by an approved supervising station in accordance with NFPA 72.

  901.6.1 Automatic sprinkler systems. Automatic sprinkler systems shall be monitored by an approved supervising station.

  Exceptions:

  1. A supervising station is not required for automatic sprinkler systems protecting one- and two-family dwellings.
  2. Limited area systems in accordance with Section 903.3.8.

  901.6.2 Fire alarm systems. Fire alarm systems required by the provisions of Section 907.2 of this code and Sections 907.2 and 907.9 of the California Fire Code shall be monitored by an approved supervising station in accordance with Section 907.6.6 of this code.

  Exceptions:

  1. Single- and multiple-station smoke alarms required by Section 907.2.11.
  2. Smoke detectors in Group I-3 occupancies.
  3. Supervisory service is not required for automatic sprinkler systems in one- and two-family dwellings.

  901.6.3 Group H. Supervision and monitoring of emergency alarm, detection and automatic fire-extinguishing systems in Group H occupancies shall be in accordance with the California Fire Code .

• CFC § 415.11.8.2.1 Medium relevance — show source text

  4. Except as noted in this section, monitoring for highly toxic and toxic gases shall also comply with Chapter 60 of the California Fire Code .

  [F] 415.11.8.2.1 Alarms. The gas detection system shall initiate a local alarm and transmit a signal to the emergency control station when a short-term hazard condition is detected. The alarm shall be both visual and audible and shall provide warning both inside and outside the area where the gas is detected. The audible alarm shall be distinct from all other alarms.

  [F] 415.11.8.2.2 Shutoff of gas supply. The gas detection system shall automatically close the shutoff valve at the source on gas supply piping and tubing related to the system being monitored for which gas is detected when a short-term hazard condition is detected. Automatic closure of shutoff valves shall comply with the following:

  1. Where the gas detection sampling point initiating the gas detection system alarm is within a gas cabinet or exhausted enclosure, the shutoff valve in the gas cabinet or exhausted enclosure for the specific gas detected shall automatically close.
  2. Where the gas detection sampling point initiating the gas detection system alarm is within a room and compressed gas containers are not in gas cabinets or an exhausted enclosure, the shutoff valves on all gas lines for the specific gas detected shall automatically close.

  2025 CALIFORNIA BUILDING CODE 4-49

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  SPECIAL DETAILED REQUIREMENTS BASED ON OCCUPANCY AND USE

  3. Where the gas detection sampling point initiating the gas detection system alarm is within a piping distribution manifold enclosure, the shutoff valve supplying the manifold for the compressed gas container of the specific gas detected shall automatically close. Exception: Where the gas detection sampling point initiating the gas detection system alarm is at the use location or within a gas valve enclosure of a branch line downstream of a piping distribution manifold, the shutoff valve for the branch line located in the piping distribution manifold enclosure shall automatically close.

  [F] 415.11.9 Manual fire alarm system. An approved manual fire alarm system shall be provided throughout buildings containing Group H-5. Activation of the alarm system shall initiate a local alarm and transmit a signal to the emergency control station. The fire alarm system shall be designed and installed in accordance with Section 907.

  [F] 415.11.10 Emergency control station. An emergency control station shall be provided in accordance with Sections 415.11.10.1 through 415.11.10.3.

  [F] 415.11.10.1 Location. The emergency control station shall be located on the premises at an approved location outside the fabrication area.

  [F] 415.11.10.2 Staffing. Trained personnel shall continuously staff the emergency control station.

  [F] 415.11.10.3 Signals. The emergency control station shall receive signals from emergency equipment and alarm and detection systems. Such emergency equipment and alarm and detection systems shall include, but not be limited to, the following where such equipment or systems are required to be provided either in this chapter or elsewhere in this code:

  1. Automatic sprinkler system alarm and monitoring systems.

  2. Manual fire alarm systems.

  3. Emergency alarm systems.

  4. Gas detection systems.

  5. Smoke detection systems.

  6. Emergency power system.

  7. Automatic detection and alarm systems for pyrophoric liquids and Class 3 water-reactive liquids required in Section 2705.2.3.4 of the California Fire Code .

• CFC § 903.4 Medium relevance — show source text

  903.4 Sprinkler system supervision and alarms. Automatic sprinkler system supervision and alarms shall comply with Sections 903.4.1 through 903.4.3.

  903.4.1 Electronic supervision. Valves controlling the water supply for automatic sprinkler systems, pumps, tanks, water levels and temperatures, critical air pressures and waterflow switches on all automatic sprinkler systems shall be electrically supervised by a listed fire alarm control unit.

  Exceptions:

  1. Automatic sprinkler systems protecting one- and two-family dwellings.

  2025 CALIFORNIA FIRE CODE 9-23

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  �

  FIRE PROTECTION AND LIFE SAFETY SYSTEMS

  2. Limited area sprinkler systems in accordance with Section 903.3.8, provided that backflow prevention device test valves located in limited area sprinkler system supply piping shall be locked in the open position unless supplying an occupancy required to be equipped with a fire alarm system, in which case the backflow preventer valves shall be electrically supervised by a tamper switch installed in accordance with NFPA 72 and separately annunciated.
  3. Automatic sprinkler systems installed in accordance with NFPA 13R where a common supply main is used to supply both domestic water and the automatic sprinkler system, and a separate shutoff valve for the automatic sprinkler system is not provided.
  4. Jockey pump control valves that are sealed or locked in the open position.
  5. Control valves to commercial kitchen hoods, paint spray booths or dip tanks that are sealed or locked in the open position.
  6. Valves controlling the fuel supply to fire pump engines that are sealed or locked in the open position.
  7. Trim valves to pressure switches in dry, preaction and deluge sprinkler systems that are sealed or locked in the open position.
  8. Underground key or hub gate valves in roadway boxes.

  903.4.2 Monitoring. Alarm, supervisory and trouble signals shall be distinctly different and shall be automatically transmitted to an approved supervising station or, where approved by the fire code official, shall sound an audible signal at a constantly attended location.

  903.4.3 Alarms. An approved audible and visual sprinkler waterflow alarm device, located on the exterior of the building in an approved location, shall be connected to each automatic sprinkler system. Such sprinkler waterflow alarm devices shall be activated by water flow equivalent to the flow of a single sprinkler of the smallest orifice size installed in the system. Where a waterflow switch is required by Section 903.4.1 to be electrically supervised, such sprinkler waterflow alarm devices shall be powered by a fire alarm control unit or, where provided, a fire alarm system. Where a fire alarm system is provided, actuation of the automatic sprinkler system shall actuate the building fire alarm system.

  Exception: Automatic sprinkler systems protecting one- and two-family dwellings.

  903.5 Inspection, testing and maintenance. Automatic sprinkler systems shall be inspected, tested and maintained in accordance with Section 901.

  903.6 Where required in existing buildings and structures. An automatic sprinkler system shall be provided in existing buildings and structures where required in Chapter 11.

  SECTION 904—ALTERNATIVE AUTOMATIC FIRE-EXTINGUISHING SYSTEMS

  904.1 General. Automatic fire-extinguishing systems, other than automatic sprinkler systems, shall be designed, installed, inspected, tested and maintained in accordance with the provisions of this section and the applicable referenced standards.

• CFC § 802.5.2 Medium relevance — show source text

  802.5.2 Design. Where there are no guards or where existing guards must be replaced, the guards shall be designed and installed in accordance with the California Building Code .

  802.6 Fire-resistance ratings. Where approved by the code official, buildings where an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2 of the California Building Code has been added, and the building is now sprinklered throughout, the required fire-resistance ratings of building elements and materials shall be permitted to meet the requirements of the current building code. The building is required to meet the other applicable requirements of the California Building Code .

  Plans, investigation and evaluation reports, and other data shall be submitted indicating which building elements and materials the applicant is requesting the code official to review and approve for determination of applying the current building code fire-resistance ratings. Any special construction features, including fire-resistance-rated assemblies and smoke-resistive assemblies, conditions of occupancy, means-of-egress conditions, fire code deficiencies, approved modifications or approved alternative materials, design and methods of construction, and equipment applying to the building that impact required fire-resistance ratings shall be identified in the evaluation reports submitted.

  SECTION 803—FIRE PROTECTION

  803.1 Scope. The requirements of this section shall be limited to work areas in which Level 2 alterations are being performed, and where specified they shall apply throughout the floor on which the work areas are located or otherwise beyond the work area.

  803.1.1 Corridor ratings. Where an approved automatic sprinkler system is installed throughout the story, the required fire-resistance rating for any corridor located on the story shall be permitted to be reduced in accordance with the California Building Code . In order to be considered for a corridor rating reduction, such system shall provide coverage for the stairway landings serving the floor and the intermediate landings immediately below.

  803.2 Automatic sprinkler systems. Automatic sprinkler systems shall be provided in accordance with the requirements of Section 903 of the California Building and California Fire Codes.

  803.3 Reserved.

  803.4 Fire alarm and detection. An approved fire alarm system shall be installed in accordance with California Fire Code Sections 907 and 1103.7.

  803.4.1 Systems out of service. Existing fire alarm and detection systems shall be maintained in accordance with Section 901.7 of the California Fire Code. Site fire protection during construction shall be in accordance with Chapter 33 of the California Building and California Fire Codes.

  SECTION 804—MEANS OF EGRESS

  804.1 Scope. The requirements of this section shall be limited to work areas that include exits or corridors shared by more than one tenant within the work area in which Level 2 alterations are being performed, and where specified they shall apply throughout the floor on which the work areas are located or otherwise beyond the work area.

  804.2 General. The means of egress shall comply with the requirements of this section.

  Exceptions:

  1. Where the work area and the means of egress serving it complies with NFPA 101.
  2. Means of egress complying with the requirements of the building code under which the building was constructed shall be considered to be compliant means of egress if, in the opinion of the code official, they do not constitute a distinct hazard to life.

  804.3 Reserved.