California Building Standards Code
2025 California Existing Building Code (Title 24, Part 10)
Part 10 of Title 24 — Repair, alteration, addition and change-of-occupancy provisions for existing buildings.
- Edition
- 2025
- Effective
- 2026-01-01
- Last ingested
- 2026-07-07
- Contents
- 20 chapters · 248 sections
- Jurisdiction
- California
Browse the full structure below. The verbatim text of this code is available through GoCodebook AI answers with exact section citations.
Contents
- 104.11 for consideration of alternative means of compliance.
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▸ Chapter 1 — ADMINISTRATION
Overview- Section 1.1 — GENERAL
- Section 1.2 — BUILDING STANDARDS COMMISSION
- Section 1.3 — BOARD OF STATE AND COMMUNITY CORRECTIONS
- Section 1.4 — DEPARTMENT OF CONSUMER AFFAIRS
- Section 1.5 — CALIFORNIA ENERGY COMMISSION
- Section 1.6 — DEPARTMENT OF FOOD AND AGRICULTURE
- Section 1.7 — DEPARTMENT OF PUBLIC HEALTH
- Section 1.8 — DEPARTMENT OF HOUSING AND COMMUNITY DEVELOPMENT
- Section 1.8.2 — AUTHORITY AND ABBREVIATIONS
- Section 1.8.3 — LOCAL ENFORCING AGENCY
- Section 1.8.4 — PERMITS, FEES, APPLICATIONS AND INSPECTIONS
- Section 1.8.5 — RIGHT OF ENTRY FOR ENFORCEMENT
- Section 1.8.6 — LOCAL MODIFICATION BY ORDINANCE OR REGULATION
- Section 1.8.7 — ALTERNATE MATERIALS, DESIGNS, TESTS AND METHODS OF CONSTRUCTION
- Section 1.8.8 — APPEALS BOARD
- Section 1.8.9 — UNSAFE BUILDINGS OR STRUCTURES
- Section 1.8.10 — OTHER BUILDING REGULATIONS
- Section 1.9 — DIVISION OF THE STATE ARCHITECT
- Section 1.10 — DEPARTMENT OF HEALTH CARE ACCESS AND INFORMATION/
- Section 1.11 — OFFICE OF THE STATE FIRE MARSHAL
- Section 1.12 — STATE LIBRARIAN
- Section 1.13 — DEPARTMENT OF WATER RESOURCES
- Section 1.14 — CALIFORNIA STATE LANDS COMMISSION
- Section 101 — SCOPE AND GENERAL REQUIREMENTS
- Section 102 — APPLICABILITY
- Section 103 — CODE COMPLIANCE AGENCY
- Section 104 — DUTIES AND POWERS OF CODE OFFICIAL
- Section 105 — PERMITS
- Section 106 — CONSTRUCTION DOCUMENTS
- Section 107 — TEMPORARY USES, EQUIPMENT AND SYSTEMS
- Section 108 — FEES
- Section 109 — INSPECTIONS
- Section 110 — CERTIFICATE OF OCCUPANCY
- Section 111 — SERVICE UTILITIES
- Section 112 — MEANS OF APPEALS
- Section 113 — VIOLATIONS
- Section 114 — STOP WORK ORDER
- Section 115 — UNSAFE STRUCTURES AND EQUIPMENT
- Section 116 — EMERGENCY MEASURES
- Section 117 — DEMOLITION
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▸ Chapter 2 — DEFINITIONS
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▸ Chapter 3 — PROVISIONS FOR ALL COMPLIANCE METHODS
Overview- Section 301 — ADMINISTRATION
- Section 302 — GENERAL PROVISIONS
- Section 303 — STORM SHELTERS
- Section 304 — STRUCTURAL DESIGN LOADS AND EVALUATION AND DESIGN PROCEDURES
- Section 305 — IN-SITU LOAD TESTS
- Section 306 — ACCESSIBILITY FOR EXISTING BUILDINGS
- Section 307 — SMOKE ALARMS
- Section 308 — CARBON MONOXIDE DETECTION
- Section 309 — ADDITIONS AND REPLACEMENTS OF EXTERIOR WALL COVERINGS AND EXTERIOR WALL ENVELOPES
- Section 310 — [OSHPD 1R, 2 AND 5]—SERVICES/SYSTEMS AND UTILITIES
- Section 311 — [OSHPD 1R, 2 AND 5]—MEANS OF EGRESS
- Section 312 — [OSHPD 1R]—HOSPITAL SPC AND FREESTANDING BUILDINGS REMOVED FROM
- Section 313 — [SFM]—EXISTING GROUP R-1 AND GROUP R-2 OCCUPANCIES
- Section 314 — [SFM]—EXISTING HIGH-RISE BUILDINGS
- Section 315 — [SFM]—EXISTING GROUP I OCCUPANCIES
- Section 316 — [SFM]—EXISTING GROUP L OCCUPANCIES
- Section 317 — [BSC, DSA-SS & DSA-SS/CC]—EARTHQUAKE EVALUATION AND DESIGN FOR RETROFIT OF EXIST…
- Section 318 — [BSC, DSA-SS & DSA-SS/CC]—DEFINITIONS
- Section 319 — [BSC, DSA-SS & DSA-SS/CC]—SEISMIC CRITERIA SELECTION FOR EXISTING BUILDINGS
- Section 320 — [BSC, DSA-SS & DSA-SS/CC]—METHOD A
- Section 321 — [BSC, DSA-SS & DSA-SS/CC]—METHOD B
- Section 322 — [BSC, DSA-SS & DSA-SS/CC]—PEER REVIEW REQUIREMENTS
- Section 323 — [DSA-SS, DSA-SS/CC]—ADDITIONAL REQUIREMENTS FOR PUBLIC SCHOOLS AND COMMUNITY COL…
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▸ Chapter 3A — PROVISIONS FOR ALL COMPLIANCE METHODS
Overview- Section 301A — ADMINISTRATION
- Section 302A — GENERAL PROVISIONS
- Section 303A — RESERVED
- Section 304A — STRUCTURAL DESIGN LOADS AND EVALUATION AND DESIGN PROCEDURES
- Section 305A — IN-SITU LOAD TESTS
- Section 306A — ACCESSIBILITY FOR EXISTING BUILDINGS
- Section 307A — SMOKE ALARMS
- Section 308A — CARBON MONOXIDE DETECTION
- Section 309A — RESERVED
- Section 311A — COMPLIANCE ALTERNATIVES FOR MEANS OF EGRESS
- Section 312A — REMOVAL OF HOSPITAL
- Section 313A — EARTHQUAKE MONITORING INSTRUMENTS FOR EXISTING BUILDINGS
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▸ Chapter 5A — PRESCRIPTIVE COMPLIANCE METHOD
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▸ Chapter 8 — ALTERATIONS—LEVEL 2
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▸ Chapter 9 — ALTERATIONS—LEVEL 3
Overview- Section 901 — GENERAL
- Section 902 — SPECIAL USE AND OCCUPANCY
- Section 903 — BUILDING ELEMENTS AND MATERIALS
- Section 904 — FIRE PROTECTION
- Section 905 — MEANS OF EGRESS
- Section 906 — STRUCTURAL
- Section 907 — ENERGY CONSERVATION
- Section 908 — EMERGENCY RESPONDER COMMUNICATIONS ENHANCEMENT SYSTEM COVERAGE
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▸ Chapter 10 — CHANGE OF OCCUPANCY
Overview- Section 1001 — GENERAL
- Section 1002 — SPECIAL USE AND OCCUPANCY
- Section 1003 — BUILDING ELEMENTS AND MATERIALS
- Section 1004 — FIRE PROTECTION
- Section 1005 — MEANS OF EGRESS
- Section 1006 — STRUCTURAL
- Section 1007 — ELECTRICAL
- Section 1008 — MECHANICAL
- Section 1009 — PLUMBING
- Section 1010 — OTHER REQUIREMENTS
- Section 1011 — CHANGE OF OCCUPANCY CLASSIFICATION
- Chapter 12 — HISTORIC BUILDINGS
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▸ Chapter 14 — RELOCATED OR MOVED BUILDINGS
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▸ Chapter 15 — CONSTRUCTION SAFEGUARDS
Overview- Section 1501 — GENERAL
- Section 1502 — OWNER’S RESPONSIBILITY FOR FIRE PROTECTION
- Section 1503 — SANITARY
- Section 1504 — PROTECTION OF PEDESTRIANS
- Section 1505 — PROTECTION OF ADJOINING PROPERTY
- Section 1506 — TEMPORARY USE OF STREETS, ALLEYS AND PUBLIC PROPERTY
- Section 1507 — FIRE EXTINGUISHERS
- Section 1508 — MEANS OF EGRESS
- Section 1509 — STANDPIPES
- Section 1510 — AUTOMATIC SPRINKLER SYSTEM
- Section 1511 — ACCESSIBILITY
- Section 1512 — WATER SUPPLY FOR FIRE PROTECTION
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▸ Chapter 16 — REFERENCED STANDARDS
Overview- Section A100 — APPLICATION
- Section A101 — PURPOSE
- Section A102 — SCOPE
- Section A103 — DEFINITIONS
- Section A104 — SYMBOLS AND NOTATIONS
- Section A105 — GENERAL REQUIREMENTS
- Section A106 — MATERIALS REQUIREMENTS
- Section A107 — QUALITY CONTROL
- Section A108 — DESIGN STRENGTHS
- Section A109 — ANALYSIS AND DESIGN PROCEDURE
- Section A110 — GENERAL PROCEDURE
- Section A111 — SPECIAL PROCEDURE
- Section A112 — ANALYSIS AND DESIGN
- Section A113 — DETAILED BUILDING SYSTEM DESIGN REQUIREMENTS
- Section A114 — WALLS OF UNBURNED CLAY, ADOBE OR STONE MASONRY
- Section A201 — PURPOSE
- Section A202 — SCOPE
- Section A203 — DEFINITIONS
- Section A204 — SYMBOLS AND NOTATIONS
- Section A205 — GENERAL REQUIREMENTS
- Section A206 — ANALYSIS AND DESIGN
- Section A207 — MATERIALS OF CONSTRUCTION
- Section A301 — GENERAL
- Section A302 — DEFINITIONS
- Section A303 — STRUCTURAL WEAKNESSES
- Section A304 — STRENGTHENING REQUIREMENTS
- Section A401 — GENERAL
- Section A402 — DEFINITIONS
- Section A403 — ANALYSIS AND DESIGN
- Section A404 — PRESCRIPTIVE MEASURES FOR WEAK STORY
- Section A405 — MATERIALS OF CONSTRUCTION
- Section A406 — CONSTRUCTION DOCUMENTS
- Section A407 — QUALITY CONTROL
- Section A501 — REFERENCED STANDARDS
- Section B101 — QUALIFIED HISTORIC BUILDINGS AND FACILITIES
- Section B102 — FIXED TRANSPORTATION FACILITIES AND STATIONS
- Section B103 — DWELLING UNITS AND SLEEPING UNITS
- Section B104 — REFERENCED STANDARDS
- Section C101 — GENERAL
- Section C102 — DEFINITIONS
- Section C103 — MATERIALS OF CONSTRUCTION
- Section C104 — RETROFITTING GABLE END WALLS TO ENHANCE WIND RESISTANCE
- Section C201 — GENERAL
- Section C202 — ROOF DECK ATTACHMENT FOR WOOD ROOFS
- Section C301 — REFERENCED STANDARDS
- Section D101 — GENERAL
- Section E101 — GENERAL
- Section E102 — DEFINITIONS
- Section E103 — SUBMITTAL DOCUMENTS
- Section E104 — CONFORMANCE
- Section E105 — PERMITS
- Section E106 — GENERAL STANDARDS FOR EMERGENCY USES
- Section E107 — USE OF SPECIFIC STANDARDS
- Section E108 — REFERENCED STANDARDS