CRC · California Residential Code
Life‑Safety, Fire Protection & Means of Egress
This hub orients users to the CRC rules for residential fire protection, alarms, sprinklers and egress and points to the specific sections and coordinating CBC/CFC chapters.
Last reviewed: July 6, 2026
Overview
This area of the California Residential Code (CRC) groups the requirements that protect occupants from fire and enable safe escape — covering active systems (sprinklers, alarms), passive construction, and the physical means of egress (stairs, handrails, emergency openings). Key CRC provisions include §R309 Automatic Sprinkler Systems, §R310 Smoke Alarms, §R311 Carbon Monoxide Alarms, §R318 Means of Egress and §R319 Emergency Escape and Rescue Openings, among others .
Those residential rules sit within the broader state code architecture and are coordinated with the California Building Code (CBC) and California Fire Code (CFC) requirements for fire protection and means of egress (CBC/CFC Chapter 9 for fire‑protection systems and Chapter 10 for means of egress). The CFC also includes additional maintenance and retrofit provisions for existing buildings (for example, the CFC’s additional Section 1032 on means‑of‑egress maintenance) that affect how systems are kept in service over time .
Practically, the CRC text you’ll use on residential projects covers when sprinklers, smoke/CO detectors, handrails, guards, mezzanine/loft egress and emergency‑escape openings are required and how they must be installed; consult the cited CRC sections for prescriptive details and refer to CBC/CFC Chapter 9–10 for cross‑referenced or broader building‑level rules .
In this section
Code references
Grounded in the retrieved California Residential Code — click a citation to read the verbatim passage:
CRC § 1001.1 High relevance — show source text
The requirements detail the size, arrangement, number and protection of means of egress components. Functional and operational characteristics that will permit the safe use of components without special knowledge or effort are specified.
The means of egress protection requirements work in coordination with other sections of the code, such as protection of vertical openings (see Chapter 7), interior finish (see Chapter 8), fire suppression and detection systems (see Chapter 9) and numerous others, all having an impact on life safety. Sections 1003 through 1031 are duplicated text from Chapter 10 of the California Building Code ; however, the California Fire Code contains an additional Section 1032 on maintenance of the means of egress system in existing buildings. Retroactive minimum means of egress requirements for existing buildings are found in Chapter 11.
SECTION 1001—ADMINISTRATION
1001.1 General. Buildings or portions thereof shall be provided with a means of egress system as required by this chapter. The provisions of this chapter shall control the design, construction and arrangement of means of egress components required to provide an approved means of egress from structures and portions thereof. Sections 1003 through 1031 shall apply to new construction. Section 1032 shall apply to existing buildings.
Exception: Detached one- and two-family dwellings and townhouses not more than three stories above grade plane in height with a separate means of egress and their accessory structures shall comply with the California Residential Code .
[BE] 1001.2 Minimum requirements. It shall be unlawful to alter a building or structure in a manner that will reduce the number of exits or the capacity of the means of egress to less than required by this code.
SECTION 1002—DEFINITIONS
[BE] 1002.1 Definitions. The following terms are defined in Chapter 2:
ACCESSIBLE MEANS OF EGRESS.
AISLE.
AISLE ACCESSWAY.
ALTERNATING TREAD DEVICE.
AREA OF REFUGE.
AUTOMATIC FLUSH BOLT.
BLEACHERS.
BREAKOUT.
CIRCULATION PATH.
COMMON PATH OF EGRESS TRAVEL.
CONSTANT LATCHING BOLT.
CORRIDOR.
DEAD BOLT.
DEFEND-IN-PLACE.
DOOR, BALANCED.
EGRESS COURT.
EMERGENCY ESCAPE AND RESCUE OPENING.
EXIT.
EXIT ACCESS.
EXIT ACCESS DOORWAY.
EXIT ACCESS RAMP.
EXIT ACCESS STAIRWAY.
EXIT DISCHARGE.
EXIT DISCHARGE, LEVEL OF.
EXIT PASSAGEWAY.
EXTERIOR EXIT RAMP.
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MEANS OF EGRESS
EXTERIOR EXIT STAIRWAY.
FIRE EXIT HARDWARE.
FIXED SEATING.
FLIGHT.
FLOOR AREA, GROSS.
FLOOR AREA, NET.
FOLDING AND TELESCOPIC SEATING.
GRADE FLOOR EMERGENCY ESCAPE AND RESCUE OPENINGS.
GRANDSTAND.
GUARD.
HANDRAIL.
HORIZONTAL EXIT.
INTERIOR EXIT RAMP.
INTERIOR EXIT STAIRWAY.
LOW ENERGY POWER-OPERATED DOOR.
MANUAL BOLT.
MEANS OF EGRESS.
MERCHANDISE PAD.
NOSING.
OCCUPANT LOAD.
OPEN-AIR ASSEMBLY SEATING.
OPEN-ENDED CORRIDOR.
CWUIC § 2025 High relevance — show source text
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Chapter 7 Fire and Smoke Protection Features.
Chapter 7 provisions present the fundamental concepts of fire performance that all buildings are expected to achieve in some form. This chapter identifies the acceptable materials, techniques and methods by which proposed construction can be designed and evaluated against to determine a building’s ability to limit the impact of fire.
Chapter 7A Materials and Construction Methods for Exterior Wildfire Exposure.
Requirements for Wildland-Urban Interface Areas are now located in Part 7 of Title 24, California Wildland-Urban Interface Code. The provisions of Part 7, California Wildland-Urban Interface Code, shall apply to buildings and structures located in the wildland-urban interface (WUI) or Fire Hazard Severity Zone.
Chapter 8 Interior Finishes.
Chapter 8 contains the performance requirements for controlling fire growth within buildings by restricting interior finish and decorative materials. The provisions of Chapter 8 require materials used as interior finishes and decorations to meet certain flame-spread index or flame-propagation criteria based on the relative fire hazard associated with the occupancy.
Chapter 9 Fire Protection and Life Safety Systems.
Chapter 9 prescribes the minimum requirements for active systems of fire protection equipment to perform the following functions: detect a fire, alert the occupants or fire department of a fire emergency, and control smoke and control or extinguish 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 CFC; however, the CFC Chapter 9 also contains periodic testing criteria that are not contained in the CBC. In addition, the special fire protection system requirements based on use and occupancy found in CBC Chapter 4 are duplicated in CFC Chapter 9 as a user convenience.
Chapter 10 Means of Egress.
The criteria in Chapter 10 regulating the design of the means of egress system are established as the primary method for protection of occupants by allowing timely relocation or evacuation. Both prescriptive and performance language is utilized for determination of a safe exiting system. It addresses all portions of the means of egress system (i.e., exit access, exits and exit discharge) and includes design requirements as well as provisions regulating individual components. The requirements detail the size, arrangement, number and protection of means of egress components. The means of egress protection requirements work in coordination with other sections of the code, such as protection of vertical openings (see Chapter 7), interior finish (see Chapter 8), fire suppression and detection systems (see Chapter 9) and numerous others, all having an impact on life safety. Chapter 10 of the CBC is duplicated in Chapter 10 of the CFC; however, the CFC contains one additional section on the maintenance of the means of egress system in existing buildings.
Chapter 11 Reserved.
Chapter 11A Housing Accessibility. Chapter 11B Accessibility to Public Buildings, Public Accommodations, Commercial Buildings and Public Housing.
Verify compliance with accessibility provisions. In order to be considered as accessible, buildings and their individual elements must comply with the applicable scoping and technical provisions of Chapter 11A and/or Chapter 11B.
Chapter 12 Interior Environment.
CRC § 4.4 High relevance — show source text
3 (a-c)]||||X|||||||||||||||||||| |[T-19 §4.4]||||X|||||||||||||||||||| |[T-19 §4.5 (a)]||||X|||||||||||||||||||| |[T-19 §4.6 (a)(b)]||||X|||||||||||||||||||| |[T-19 §3.11 (a-d)]_||||X||||||||||||||||||||
- The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Fire Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same. The state agency does not adopt sections identified by the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
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10 MEANS OF EGRESS
User note:
About this chapter: Chapter 10 provides the general criteria for designing the means of egress established as the primary method for protection of people in buildings by allowing timely relocation or evacuation of building occupants. Both prescriptive and performance language is utilized in this chapter to provide for a basic approach in the determination of a safe exiting system for all occupancies. This chapter addresses all portions of the egress system (exit access, exits and exit discharge) and includes design requirements as well as provisions regulating individual components. The requirements detail the size, arrangement, number and protection of means of egress components. Functional and operational characteristics that will permit the safe use of components without special knowledge or effort are specified.
The means of egress protection requirements work in coordination with other sections of the code, such as protection of vertical openings (see Chapter 7), interior finish (see Chapter 8), fire suppression and detection systems (see Chapter 9) and numerous others, all having an impact on life safety. Sections 1003 through 1031 are duplicated text from Chapter 10 of the California Building Code ; however, the California Fire Code contains an additional Section 1032 on maintenance of the means of egress system in existing buildings. Retroactive minimum means of egress requirements for existing buildings are found in Chapter 11.
SECTION 1001—ADMINISTRATION
1001.1 General. Buildings or portions thereof shall be provided with a means of egress system as required by this chapter. The provisions of this chapter shall control the design, construction and arrangement of means of egress components required to provide an approved means of egress from structures and portions thereof. Sections 1003 through 1031 shall apply to new construction. Section 1032 shall apply to existing buildings.
Exception: Detached one- and two-family dwellings and townhouses not more than three stories above grade plane in height with a separate means of egress and their accessory structures shall comply with the California Residential Code .
[BE] 1001.2 Minimum requirements. It shall be unlawful to alter a building or structure in a manner that will reduce the number of exits or the capacity of the means of egress to less than required by this code.
CFC § 701 High relevance — show source text
Chapter 7 Fire and Smoke Protection Features
The maintenance of assemblies required to be fire-resistance rated is a key component in a passive fire protection philosophy. Chapter 7 sets forth requirements to maintain required fire-resistance ratings of building elements and limit fire spread. Section 701 addresses the basics of what construction elements such as fire barriers and smoke barriers need to be maintained as well as defining the owner’s responsibility. Sections 703 through 708, deals with various fire and smoke protection features that must also be maintained.
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Chapter 8 Interior Finish, Decorative Materials and Furnishings
The overall purpose of Chapter 8 is to regulate interior finishes, decorative materials and furnishings in new and existing buildings so that they do not significantly add to or create fire hazards within buildings. This chapter is consistent with Chapter 8 of the CBC, which regulates the interior finishes of new buildings.
Chapter 9 Fire Protection and Life Safety Systems
Chapter 9 prescribes the minimum requirements for active systems of fire protection equipment to perform the following functions: detect a fire, alert the occupants or fire department of a fire emergency, and control smoke and control or extinguish 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 CBC; however, this chapter also contains periodic testing criteria that are not contained in the CBC. In addition, the special fire protection system requirements based on use and occupancy found in CBC Chapter 4 are duplicated in CFC Chapter 9 as a user convenience.
Chapter 10 Means of Egress
The criteria in Chapter 10 regulating the design of the means of egress system are established as the primary method for protection of occupants by allowing timely relocation or evacuation. Both prescriptive and performance language is utilized for determination of a safe exiting system. It addresses all portions of the means of egress system (i.e., exit access, exits and exit discharge) and includes design requirements as well as provisions regulating individual components. The requirements detail the size, arrangement, number and protection of means of egress components. The means of egress protection requirements work in coordination with other sections of the code, such as protection of vertical openings (see Chapter 7 of the CBC), interior finish (see Chapter 8 of the CBC), fire suppression and detection systems (see Chapter 9) and numerous others, all having an impact on life safety. Chapter 10 of the CBC is duplicated in Chapter 10 of the CFC; however, the CFC contains one additional section on the maintenance of the means of egress system in existing buildings.
Chapter 11 Construction Requirements for Existing Buildings
Chapter 11 applies to existing buildings constructed prior to the adoption of the code and intends to provide a minimum degree of fire and life safety to persons occupying existing buildings by providing for retroactive requirements to install or upgrade fire safety features to such buildings that do not comply with the minimum requirements of the CBC. Prior to the 2009 edition, its content existed in the CFC but in a random manner that was neither efficient nor user-friendly. In the 2007/2008 International Code Council (ICC) code development cycle, a code change (F294-07/ 08) was approved that consolidated the retroactive elements of CFC into a single chapter for easier and more efficient reference and application to existing buildings.
Chapter 12 Energy Systems
CRC § 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 § 1207 High relevance — show source text
The criteria in Chapter 10 regulating the design of the means of egress system are established as the primary method for protection of occupants by allowing timely relocation or evacuation. Both prescriptive and performance language is utilized for determination of a safe exiting system. It addresses all portions of the means of egress system (i.e., exit access, exits and exit discharge) and includes design requirements as well as provisions regulating individual components. The requirements detail the size, arrangement, number and protection of means of egress components. The means of egress protection requirements work in coordination with other sections of the code, such as protection of vertical openings (see Chapter 7 of the CBC), interior finish (see Chapter 8 of the CBC), fire suppression and detection systems (see Chapter 9) and numerous others, all having an impact on life safety. Chapter 10 of the CBC is duplicated in Chapter 10 of the CFC; however, the CFC contains one additional section on the maintenance of the means of egress system in existing buildings.
Chapter 11 Construction Requirements for Existing Buildings
Chapter 11 applies to existing buildings constructed prior to the adoption of the code and intends to provide a minimum degree of fire and life safety to persons occupying existing buildings by providing for retroactive requirements to install or upgrade fire safety features to such buildings that do not comply with the minimum requirements of the CBC. Prior to the 2009 edition, its content existed in the CFC but in a random manner that was neither efficient nor user-friendly. In the 2007/2008 International Code Council (ICC) code development cycle, a code change (F294-07/ 08) was approved that consolidated the retroactive elements of CFC into a single chapter for easier and more efficient reference and application to existing buildings.
Chapter 12 Energy Systems
Chapter 12 addresses any provisions related to energy systems found in the CFC. The expansion of such energy systems is related to meeting today’s energy, environmental and economic challenges. Ensuring appropriate criteria to address the safety of such systems in building and fire codes is an important part of protecting the public at large, building occupants and emergency responders. These requirements also facilitate the successful implementation of new technologies.
All text in Section 1207 of the 2024 CFC with the following designation (Material based on NFPA 855 2023 Ed.) is reproduced with permission from the National Fire Protection Association (NFPA) and is based upon NFPA 855, Standard for the Installation of Station- ary Energy Storage Systems, Copyright © 2023 NFPA. All designated text is either directly copied from the 2023 edition of NFPA 855 or as modified by the ICC Code Development Process. This material is not the complete and official position of NFPA on the referenced subject, which is represented solely by the standard in its entirety. NFPA shall not be responsible for the manner in which this information is presented, nor for any interpretations thereof.
Chapters 13 through 19 Reserved for future use.
PART IV—SPECIAL OCCUPANCIES AND OPERATIONS
Chapter 20 Aviation Facilities
Chapter 20 specifies minimum requirements for the fire-safe operation of airports, heliports and helistops. The principal nonflight operational hazards associated with aviation involve fuel, facilities and operations. Therefore, safe use of flammable and combustible liquids during fueling and maintenance operations is emphasized. Availability of portable Class B:C-rated fire extinguishers for prompt control or suppression of incipient fires is required.
Chapter 21 Dry Cleaning
CFC § 1203 Medium relevance — show source text
CHAPTER TOPICS Col2 PARTS AND CHAPTERS SUBJECTS Part I—Chapters 1 and 2 Administrative and definitions Part II—Chapters 3 and 4 General safety provisions Part III—Chapters 5 through 12 Building and equipment design features Part III—Chapters 13 through 19 Reserved for future use Part IV—Chapters 20 through 41_; 48 and 49_ Special occupancies and operations Part IV—Chapters 42 through_47_ Reserved for future use Part V—Chapters 50, 51 and 53 through 67 Hazardous materials Part V—Chapters_ 52,_ 68 through 79 Reserved for future use Part VI—Chapter 80 Referenced standards Part VII—Appendices A through Q Adoptable and informational appendices 2025 CALIFORNIA FIRE CODE xiii
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California Building Code Correlated Topics
The CFC requirements for fire-resistance-rated construction, interior finish, fire protection systems, means of egress and construction safeguards are directly correlated to the chapters containing parallel requirements in the CBC as follows:
CFC/CBC CORRELATED TOPICS Col2 Col3 CFC CHAPTER/SECTION CBC CHAPTER/SECTION SUBJECT Chapter 7 Chapter 7 Fire and smoke protection features (Fire-resistance-rated construction in the CBC) Chapter 8 Chapter 8 Interior finish, decorative materials and furnishings Chapter 9 Chapter 9 Fire protection and life safety systems Chapter 10 Chapter 10 Means of egress Section 1203 Chapter 27 Emergency and standby power Chapter 31 Section 3103 Temporary structures Chapter 33 Chapter 33 Construction fire safety Chapters 50–67 Sections 307, 414, 415 Hazardous materials and Group H requirements PART I—ADMINISTRATIVE
Chapter 1 Scope and Administration.
Chapter 1 establishes the limits of applicability of the code and describes how the code is to be applied and enforced. The provisions of Chapter 1 establish the authority and duties of the code official appointed by the authority having jurisdiction and also establish the rights and privileges of the design professional, contractor and property owner.
Chapter 2 Definitions.
Chapter 2 is the repository of the definitions of terms used in the body of the code. The user of the code should be familiar with and consult this chapter because the definitions are essential to the correct interpretation of the code and because the user may not be aware that a term is defined.
PART II—GENERAL SAFETY PROVISIONS
Chapter 3 General Requirements
General regulations contained in Chapter 3, are intended to improve premises safety for everyone, including construction workers, tenants, operations and maintenance personnel, and emergency response personnel.
Chapter 4 Emergency Planning and Preparedness
Chapter 4 addresses the human contribution to life safety during emergencies. Continuous training and scheduled fire, evacuation and lockdown drills can be as important as the required periodic inspections and maintenance of built-in fire protection features. The level of preparation by the occupants also improves the emergency responders’ abilities during an emergency.
PART III—BUILDING AND EQUIPMENT DESIGN FEATURES
Chapter 5 Fire Service Features
CRC § 101.1 Medium relevance — show source text
PART 1—SCOPE AND APPLICATION
SECTION 101—SCOPE AND GENERAL REQUIREMENTS
[A] 101.1 Title. These regulations shall be known as the Building Code of [ NAME OF JURISDICTION ], hereinafter referred to as “this code.”
[A] 101.2 Scope. The provisions of this code shall apply to the construction, alteration, relocation, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures.
Exception: Detached one- and two-family dwellings and townhouses not more than three stories above grade plane in height with a separate means of egress, and their accessory structures not more than three stories above grade plane in height, shall comply with this code or the California Residential Code .
[A] 101.2.1 Appendices. Provisions in the appendices shall not apply unless specifically adopted.
[A] 101.3 Purpose. The purpose of this code is to establish the minimum requirements to provide a reasonable level of safety, health and general welfare through structural strength, means of egress, stability, sanitation, light and ventilation, energy conservation, and for providing a reasonable level of life safety and property protection from the hazards of fire, explosion or dangerous conditions, and to provide a reasonable level of safety to firefighters and emergency responders during emergency operations.
[A] 101.4 Referenced codes. The other codes specified in Sections 101.4.1 through 101.4.7 and referenced elsewhere in this code shall be considered to be part of the requirements of this code to the prescribed extent of each such reference.
[A] 101.4.1 Gas. The provisions of the California Plumbing Code and/or the California Mechanical Code shall apply to the installation of gas piping from the point of delivery, gas appliances and related accessories as covered in this code. These requirements apply to gas piping systems extending from the point of delivery to the inlet connections of appliances and the installation and operation of residential and commercial gas appliances and related accessories.
[A] 101.4.2 Mechanical. The provisions of the California Mechanical Code shall apply to the installation, alterations, repairs and replacement of mechanical systems, including equipment, appliances, fixtures, fittings and appurtenances, including ventilating, heating, cooling, air-conditioning and refrigeration systems, incinerators and other energy-related systems.
[A] 101.4.3 Plumbing. The provisions of the California Plumbing Code shall apply to the installation, alteration, repair and replacement of plumbing systems, including equipment, appliances, fixtures, fittings and appurtenances, and where connected to a water or sewage system and all aspects of a medical gas system. The provisions of the California Plumbing Code shall apply to private sewage disposal systems.
[A] 101.4.4 Property maintenance. The provisions of the California Existing Building Code shall apply to existing structures and premises; equipment and facilities; light, ventilation, space heating, sanitation, life and fire safety hazards; responsibilities of owners, operators and occupants; and occupancy of existing premises and structures.
CRC § 907.3.1 Medium relevance — show source text
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FIRE PROTECTION AND LIFE SAFETY SYSTEMS
normal electrical service and, upon actuation, perform the intended function. The detectors shall be located in accordance with NFPA 72.
907.3.1 Duct smoke detectors. Smoke detectors installed in ducts shall be listed for the air velocity, temperature and humidity present in the duct. Duct smoke detectors shall be connected to the building’s fire alarm control unit where a fire alarm system is required by Section 907.2. Activation of a duct smoke detector shall initiate a visible and audible supervisory signal at a constantly attended location and shall perform the intended fire safety function in accordance with this code and the California Mechanical Code . In facilities that are required to be monitored by a supervising station, duct smoke detectors shall report only as a supervisory signal and not as a fire alarm. They shall not be used as a substitute for required open area detection.
Exceptions:
- The supervisory signal at a constantly attended location is not required where duct smoke detectors activate the building’s alarm notification appliances.
- In occupancies not required to be equipped with a fire alarm system, actuation of a smoke detector shall activate a visible and an audible signal in an approved location. Smoke detector trouble conditions shall activate a visible or audible signal in an approved location and shall be identified as air duct detector trouble.
907.3.2 Special locking systems. Where special locking systems are installed on means of egress doors in accordance with Section 1010.2.13 or 1010.2.12, an automatic smoke detection system shall be installed as required by those sections and Sections 907.3.2.1 through 907.3.2.5.
907.3.2.1 Delayed egress. In other than Group I, Group R-2.1 and Group R-4, occupancies for single-story building smoke detectors shall be installed at ceilings throughout all occupied areas and mechanical/electrical spaces. For multiple-story buildings, smoke detectors shall be installed throughout all occupied areas and mechanical/electrical spaces for the story where delayed egress devices are installed. Additional detectors are required on adjacent stories where occupants of those stories utilize the same means of
egress.
Exception: Refer to Section 907.3.2.4 for Group A courthouse occupancies.
907.3.2.2 Delayed egress for Group I and R-2.1 occupancies. Smoke detectors shall be installed at ceilings throughout all occupied areas and mechanical/electrical spaces of smoke-compartments where delayed egress devices are installed. Additional detectors are required in adjacent smoke-compartments where occupants of those compartments utilize the same means of egress.
907.3.2.3 Delayed egress for Group R-4 occupancies. In occupancies licensed as residential care facilities for the elderly and housing clients with Alzheimer’s disease or dementia, smoke detectors shall be installed at ceilings throughout all occupiable rooms and areas and mechanical/electrical rooms and spaces.
907.3.2.4 Delayed egress for Group A Courthouse occupancies. Approved automatic smoke detection systems shall be installed at ceilings in all occupied corridors and mechanical/electrical spaces of occupancies where delayed egress devices are installed.
CRC § 1001.1 Medium relevance — show source text
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10 MEANS OF EGRESS
User notes:
About this chapter: Chapter 10 provides the general criteria for designing the means of egress established as the primary method for protection of people in buildings by allowing timely relocation or evacuation of building occupants. Both prescriptive and performance language is utilized in this chapter to provide for a basic approach in the determination of a safe exiting system for all occupancies. It addresses all portions of the egress system (exit access, exits and exit discharge) and includes design requirements as well as provisions regulating individual components. The requirements detail the size, arrangement, number and protection of means of egress components. Functional and operational characteristics that will permit the safe use of components without special knowledge or effort are specified.
The means of egress protection requirements work in coordination with other sections of the code, such as protection of vertical openings (see Chapter 7), interior finish (see Chapter 8), fire suppression and detection systems (see Chapter 9) and numerous others, all having an impact on life safety. Chapter 10 is subdivided into four main sections: general (Sections 1003–1015), exit access (Sections 1016–1021), exit (Sections 1022–1027) and exit discharge (Sections 1028–1029). Special allowances for the unique requirements for assembly spaces (Section 1030) and emergency escape and rescue openings (Section 1031) complete the chapter. Chapter 10 of this code is duplicated in Chapter 10 the California Fire Code; however, the California Fire Code contains one additional section on maintenance of the means of egress system in existing buildings.
SECTION 1001—ADMINISTRATION
1001.1 General. Buildings or portions thereof shall be provided with a means of egress system as required by this chapter. The provisions of this chapter shall control the design, construction and arrangement of means of egress components required to provide an approved means of egress from structures and portions thereof.
1001.2 Minimum requirements. It shall be unlawful to alter a building or structure in a manner that will reduce the number of exits or the minimum width or required capacity of the means of egress to less than required by this code.
SECTION 1002—MAINTENANCE AND PLANS
[F] 1002.1 Maintenance. Means of egress shall be maintained in accordance with the California Fire Code .
[F] 1002.2 Fire safety and evacuation plans. Fire safety and evacuation plans shall be provided for all occupancies and buildings where required by the California Fire Code . Such fire safety and evacuation plans shall comply with the applicable provisions of Sections 401.2 and 404 of the California Fire Code .
SECTION 1003—GENERAL MEANS OF EGRESS
1003.1 Applicability. The general requirements specified in Sections 1003 through 1015 shall apply to all three elements of the means of egress system, in addition to those specific requirements for the exit access, the exit and the exit discharge detailed elsewhere in this chapter.
CRC § 3-33 Medium relevance — show source text
R304 Protection of Wood and Wood-Based Products
Against Decay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33
R305 Protection Against Subterranean Termites. . . . . . . 3-35
R306 Flood-Resistant Construction. . . . . . . . . . . . . . . . . . . 3-36
R307 Storm Shelters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
R308 Site Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
R309 Automatic Sprinkler Systems . . . . . . . . . . . . . . . . . . . 3-41
R310 Smoke Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54
R311 Carbon Monoxide Alarms. . . . . . . . . . . . . . . . . . . . . . . 3-58
R312 Minimum Room Areas . . . . . . . . . . . . . . . . . . . . . . . . . 3-59
R313 Ceiling Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59
R314 Mezzanines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-60
R315 Sleeping Lofts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-60
R316 Habitable Attics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-61
R317 Garages and Carports. . . . . . . . . . . . . . . . . . . . . . . . . . 3-61
R318 Means of Egress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-62
R319 Emergency Escape and Rescue Openings . . . . . . . . 3-65
R320 Handrails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-67
R321 Guards and Window Fall Protection . . . . . . . . . . . . . 3-67
R322 Accessibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68
R323 Elevators and Platform Lifts . . . . . . . . . . . . . . . . . . . . 3-68
R324 Glazing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68
CRC § 901.2.1 Medium relevance — show source text
901.2.1 Statement of compliance. Before requesting final approval of the installation, where required by the fire code official, the installing contractor shall furnish a written statement to the fire code official that the subject fire protection or life safety system has been installed in accordance with approved plans and has been tested in accordance with the manufacturer’s specifications and the appropriate installation standard. Any deviations from the design standards shall be noted and copies of the approvals for such deviations shall be attached to the written statement.
901.3 Permits. Permits shall be required as set forth in Sections 105.5 and 105.6.
901.4 Fire protection and life safety systems. Fire protection and life safety systems shall be installed, repaired, operated and maintained in accordance with this code and the California Building Code .
901.4.1 Required fire protection and life safety systems. Fire protection and life safety systems required by this code or the California Building Code shall be installed, repaired, operated, tested and maintained in accordance with this code. A fire protection or life safety system for which a design option, exception or reduction to the provisions of this code or the California Building Code has been granted shall be considered to be a required system.
901.4.2 Nonrequired fire protection and life safety systems. Fire protection and life safety systems or portion thereof not required by this code or the California Building Code shall be allowed to be furnished for partial or complete protection provided that such installed systems meet the applicable requirements of this code and the California Building Code .
901.4.3 Alterations in buildings and structures. For any alteration within a building or structure, the fire protection and life safety systems shall be extended, altered or augmented to maintain and continue protection within the building or structure. Persons shall not remove or modify any fire protection or life safety system installed or maintained under the provisions of this code or the California Building Code without approval from the fire code official.
901.4.4 Fire areas. Where buildings, or portions thereof, are divided into fire areas so as not to exceed the limits established for requiring a fire protection system in accordance with this chapter, such fire areas shall be separated by fire barriers constructed in accordance with Section 707 of the California Building Code or horizontal assemblies constructed in accordance with Section 711 of the California Building Code, or both, having a fire-resistance rating of not less than that determined in accordance with Section 707.3.10 of the California Building Code .
901.4.5 Additional fire protection systems. In occupancies of a hazardous nature, where special hazards exist in addition to the normal hazards of the occupancy, or where the fire code official determines that access for fire apparatus is unduly difficult, the fire code official shall have the authority to require additional safeguards and fire protection systems. Fire protection and life safety systems required under this section shall be installed in accordance with this code and the applicable referenced standards.
901.4.6 Appearance of equipment. Any device that has the physical appearance of life safety or fire protection equipment but that does not perform that life safety or fire protection function shall be prohibited.
Frequently asked questions
Which CRC sections set the alarm and sprinkler requirements for dwellings?
Smoke‑alarm, carbon monoxide and sprinkler provisions are found in the CRC at §R310 (Smoke Alarms), §R311 (Carbon Monoxide Alarms) and §R309 (Automatic Sprinkler Systems); see those sections for location, power and interconnection requirements .
How does the CRC relate to the CBC/CFC for means of egress?
Detached one‑ and two‑family dwellings and qualifying townhouses follow the CRC egress rules; larger or other occupancies follow CBC/CFC provisions. CBC/CFC Chapter 10 contains the comprehensive means‑of‑egress criteria (the codes are cross‑coordinated and CFC adds maintenance/retrofit provisions) .
Where are emergency‑escape openings and handrail rules in the CRC?
Emergency‑escape and rescue opening requirements are in §R319 and handrail/guard requirements are in §R320–R321; these sections give the dimensional and performance criteria for habitable basements, sleeping lofts, stairways and similar elements .
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