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Appendix BB — FIRE-FLOW REQUIREMENTS FOR BUILDINGS

Section BB105 — FIRE-FLOW REQUIREMENTS FOR BUILDINGS

2025 California Fire Code (Title 24, Part 9) · 2025 edition · updated 2026-07-27 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

BB105.1 The minimum fire flow and flow duration for school buildings shall be as specified in Table BB105.1.

Exception: A reduction in required fire flow of up to 75 percent is allowed when the building is provided with an approved automatic sprinkler system. When a reduction in fire flow is used, fire flow shall not be less than 1500 GPM.

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

APPENDIX BB—FIRE-FLOW REQUIREMENTS FOR BUILDINGS

TABLE BB105.1—MINIMUM REQUIRED FIRE-FLOW AND FLOW DURATION FOR BUILDINGS

FIRE AREA (square feet) FIRE AREA (square feet) FIRE AREA (square feet) FIRE AREA (square feet) FIRE AREA (square feet) FIRE-FLOW
(gallons per
minute)b		 FLOW
DURATION
(hours)
Type IA and IB a Type IIA and IIIA a Type IV and V-A a Type IIB and IIIB a Type V-B a Type V-B a Type V-B a
0-22,700 0-12,700 0-8,200 0-5,900 0-3,600 1,500 2
22,701-30,200 12,701-17,000 8,201-10,900 5,901-7,900 3,601-4,800 1,750 1,750
30,201-38,700 17,001-21,800 10,901-12,900 7,901-9,800 4,801-6,200 2,000 2,000
38,701-48,300 21,801-24,200 12,901-17,400 9,801-12,600 6,201-7,700 2,250 2,250
48,301-59,000 24,201-33,200 17,401-21,300 12,601-15,400 7,701-9,400 2,500 2,500
59,001-70,900 33,201-39,700 21,301-25,500 15,401-18,400 9,401-11,300 2,750 2,750
70,901-83,700 39,701-47,100 25,501-30,100 18,401-21,800 11,301-13,400 3,000 _3 _
83,701-97,700 47,101-54,900 30,101-35,200 21,801-25,900 13,401-15,600 3,250 3,250
97,701-112,700 54,901-63,400 35,201-40,600 25,901-29,300 15,601-18,000 3,500 3,500
112,701-128,700 63,401-72,400 40,601-46,400 29,301-33,500 18,001-20,600 3,750 3,750
128,701-145,900 72,401-82,100 46,401-52,500 33,501-37,900 20,601-23,300 4,000 _4 _
145,901-164,200 82,101-92,400 52,501-59,100 37,901-42,700 23,301-26,300 4,250 4,250
164,201-183,400 92,401-103,100 59,101-66,000 42,701-47,700 26,301-29,300 4,500 4,500
183,401-203,700 103,101-114,600 66,001-73,300 47,701-53,000 29,301-32,600 4,750 4,750
203,701-225,200 114,601-126,700 73,301-81,100 53,001-58,600 32,601-36,000 5,000 5,000
225,201-247,700 126,701-139,400 81,101-89,200 58,601-65,400 36,001-39,600 5,250 5,250
247,701-271,200 139,401-152,600 89,201-97,700 65,401-70,600 39,601-43,400 5,500 5,500
271,201-295,900 152,601-166,500 97,701-106,500 70,601-77,000 43,401-47,400 5,750 5,750
295,901-Greater 166,501-Greater 106,501-115,800 77,001-83,700 47,401-51,500 6,000 6,000
_— _ _— _ 115,801-125,500 83,701-90,600 51,501-55,700 6,250 6,250
_— _ _— _ 125,501-135,500 90,601-97,900 55,701-60,200 6,500 6,500
_— _ _— _ 135,501-145,800 97,901-106,800 60,201-64,800 6,750 6,750
_— _ _— _ 145,801-156,700 106,801-113,200 64,801-69,600 7,000 7,000
_— _ _— _ 156,701-167,900 113,201-121,300 69,601-74,600 7,250 7,250
_— _ _— _ 167,901-179,400 121,301-129,600 74,601-79,800 7,500 7,500
_— _ _— _ 179,401-191,400 129,601-138,300 79,801-85,100 7,750 7,750
_— _ _— _ 191,401-Greater 138,301-Greater 85,101-Greater 8,000 8,000
For SI:1 square foot = 0.0929 m2, 1 gallon per minute = 3.785 L/m, 1 pound per square inch = 6.895kPa.
a. Types of construction are based on the_California Building Code._
b. Measured at 20 psi.

APPENDIX BB-4 2025 CALIFORNIA FIRE CODE

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

CALIFORNIA FIRE CODE – MATRIX ADOPTION TABLE

APPENDIX C – FIRE HYDRANT LOCATIONS AND DISTRIBUTION

(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

Adopting Agency BSC BSC-
CG		 SFM HCD DSA OSHPD BSCC DPH AGR DWR CEC CA SL SLC
Adopting Agency BSC BSC-
CG		 T-24 T-19* 1 2 1/AC AC SS 1 1R 2 3 4 5 5 5 5 5 5 5 5 5
Adopt Entire Chapter
Adopt Entire Chapter as
amended (amended sections
listed below)		 X
Adopt only those sections that
are listed below
[California Code of Regulations,
Title 19, Division 1]
Chapter / Section
C101.1 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.

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

APPENDIX C-2 2025 CALIFORNIA FIRE CODE

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

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▸ Contents — 2025 California Fire Code (Title 24, Part 9)
2025 California Fire Code (Title 24, Part 9)
  1. Chapter 1 — ADMINISTRATION
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — GENERAL REQUIREMENTS
  4. Chapter 4 — EMERGENCY PLANNING AND PREPAREDNESS
  5. Chapter 5 — FIRE SERVICE FEATURES
  6. Chapter 6 — BUILDING SERVICES AND SYSTEMS
  7. Chapter 7 — FIRE AND SMOKE PROTECTION FEATURES
  8. Chapter 8 — INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHI…
  9. Chapter 9 — FIRE PROTECTION AND LIFE SAFETY SYSTEMS
  10. Chapter 10 — MEANS OF EGRESS
  11. Chapter 11 — CONSTRUCTION REQUIREMENTS FOR EXISTING BUILDINGS
  12. Chapter 12 — ENERGY SYSTEMS
  13. Chapter 20 — AVIATION FACILITIES
  14. Chapter 21 — DRY CLEANING
  15. Chapter 22 — COMBUSTIBLE DUST-PRODUCING OPERATIONS
  16. Chapter 23 — MOTOR FUEL-DISPENSING FACILITIES AND REPAIR GARAGES
  17. Chapter 24 — FLAMMABLE FINISHES
  18. Chapter 25 — FRUIT AND CROP RIPENING
  19. Chapter 26 — FUMIGATION AND INSECTICIDAL FOGGING
  20. Chapter 27 — SEMICONDUCTOR FABRICATION FACILITIES
  21. Chapter 28 — LUMBER YARDS AND AGRO-INDUSTRIAL, SOLID BIOMASS A…
  22. Chapter 29 — MANUFACTURE OF ORGANIC COATINGS
  23. Chapter 30 — INDUSTRIAL OVENS
  24. Chapter 31 — TENTS, TEMPORARY SPECIAL EVENT STRUCTURES AND OTH…
  25. Chapter 32 — HIGH-PILED COMBUSTIBLE STORAGE
  26. Chapter 33 — FIRE SAFETY DURING CONSTRUCTION AND DEMOLITION
  27. Chapter 34 — TIRE REBUILDING AND TIRE STORAGE
  28. Chapter 35 — WELDING AND OTHER HOT WORK
  29. Chapter 36 — MARINAS
  30. Chapter 37 — COMBUSTIBLE FIBERS
  31. Chapter 38 — RESERVED
  32. Chapter 39 — PROCESSING AND EXTRACTION FACILITIES
  33. Chapter 40 — STORAGE OF DISTILLED SPIRITS AND WINES
  34. Chapter 41 — TEMPORARY HEATING AND COOKING OPERATIONS
  35. Chapter 48 — MOTION PICTURE AND TELEVISION PRODUCTION STUDIO S…
  36. Chapter 49 — REQUIREMENTS FOR WILDLAND-URBAN INTERFACE FIRE AR…
  37. Chapter 50 — HAZARDOUS MATERIALS—GENERAL PROVISIONS
  38. Chapter 51 — AEROSOLS
  39. Chapter 52 — RESERVED
  40. Chapter 53 — COMPRESSED GASES
  41. Chapter 54 — CORROSIVE MATERIALS
  42. Chapter 55 — CRYOGENIC FLUIDS
  43. Chapter 56 — EXPLOSIVES AND FIREWORKS
  44. Chapter 57 — FLAMMABLE AND COMBUSTIBLE LIQUIDS
  45. Chapter 58 — FLAMMABLE GASES AND FLAMMABLE CRYOGENIC FLUIDS
  46. Chapter 59 — FLAMMABLE SOLIDS
  47. Chapter 60 — HIGHLY TOXIC AND TOXIC MATERIALS
  48. Chapter 61 — LIQUEFIED PETROLEUM GASES
  49. Chapter 62 — ORGANIC PEROXIDES
  50. Chapter 63 — OXIDIZERS, OXIDIZING GASES AND OXIDIZING CRYOGENI…
  51. Chapter 64 — PYROPHORIC MATERIALS
  52. Chapter 65 — PYROXYLIN (CELLULOSE NITRATE) PLASTICS
  53. Chapter 66 — UNSTABLE (REACTIVE) MATERIALS
  54. Chapter 67 — WATER-REACTIVE SOLIDS AND LIQUIDS
  55. Chapter 80 — REFERENCED STANDARDS
  56. Appendix Chapter 4 — SPECIAL DETAILED REQUIREMENTS BASED ON US…
  57. Appendix A — BOARD OF APPEALS
  58. Appendix B — FIRE-FLOW REQUIREMENTS FOR BUILDINGS
  59. ▸ Appendix BB — FIRE-FLOW REQUIREMENTS FOR BUILDINGS
    Overview
    1. Section BB101 — SCOPE
    2. Section BB102 — DEFINITIONS
    3. Section BB103 — MODIFICATIONS
    4. Section BB104 — FIRE AREA
    5. Section BB105 — FIRE-FLOW REQUIREMENTS FOR BUILDINGS
  60. Appendix C — FIRE HYDRANT LOCATIONS AND DISTRIBUTION
  61. Appendix CC — FIRE HYDRANT LOCATIONS AND DISTRIBUTION
  62. Appendix D — FIRE APPARATUS ACCESS ROADS
  63. Appendix E — HAZARD CATEGORIES
  64. Appendix F — HAZARD RANKING
  65. Appendix G — CRYOGENIC FLUIDS—WEIGHT AND VOLUME EQUIVALENTS
  66. Appendix H — HAZARDOUS MATERIALS MANAGEMENT PLANS AND HAZARDOU…
  67. Appendix I — FIRE PROTECTION SYSTEMS—NONCOMPLIANT CONDITIONS
  68. Appendix J — BUILDING INFORMATION SIGN
  69. Appendix K — CONSTRUCTION REQUIREMENTS FOR EXISTING AMBULATORY…
  70. Appendix L — REQUIREMENTS FOR FIREFIGHTER AIR REPLENISHMENT SY…
  71. Appendix M — HIGH-RISE BUILDINGS—RETROACTIVE AUTOMATIC SPRINKL…
  72. Appendix N — INDOOR TRADE SHOWS AND EXHIBITIONS
  73. Appendix O — VALET TRASH AND RECYCLING COLLECTION IN GROUP R-2…
  74. Appendix P — TEMPORARY HAUNTED HOUSES, GHOST WALKS AND SIMILAR…
  75. Appendix Q — COMMUNITY WILDLAND-URBAN INTERFACE (WUI) FIRE HAZ…

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