All Code Interpretations

Code interpretations rendered for Title 24 are valid for the code year edition identified in the code interpretation. Code interpretations rendered for Title 19 are not code edition specific.

Code Interpretation

2019

21-004	Electrical Energy Storage Systems (ESS) (PDF)	03/30/2022
21-004	Electrical Energy Storage Systems (ESS) (PDF)	12/01/21
21-003	Dedicated Function Sprinkler Monitoring System (PDF)	11/29/21
21-002	Definition of Floor Space (PDF)	04/20/21
21-001	Installation, alteration or repairs of all water-based fire protection systems in California (PDF)	04/02/21
20-001	ESS requirements for an R-3 (PDF)	09/11/20

2016

18-008	Hood Suppresion Systems (PDF)	12/07/18
18-007	Change of Occupancy Use (PDF)	12/03/18
18-006	When to Classify Large Family Day Cares as I-4 (PDF)	12/03/18
18-005	Emergency Escape and Rescue Opening (PDF)	12/03/18
18-004	Manual Alarm Wiring (PDF)	02/28/18
18-003	Standpipe Riser Lateral (PDF)	01/31/18
18-002	WUI - 7A Standards for New Detached Garage (PDF)	01/05/18
18-001	Additions to an Existing Fire Alarm Panel (PDF)	01/05/18
17-006	Common Use Areas (PDF)	11/29/17
17-005	Fire retardant coatings (PDF)	11/29/17
17-004	Nonambulatory Status for R-2.1 (PDF)	11/29/17
17-003	Automatic fire alarm defined (PDF)	11/29/17
17-002	Exiting thru an elevator lobby (PDF)	11/29/17
17-001	High-rise with occupied roof measurement	07/18/17 REMOVED
16-006	Permit for repairs of automatic fire-extinguishing systems (PDF)	09/15/16
16-005	Private Development (campus) Fire Pump (PDF)	09/01/16
16-004	Elevator Car Requirements for Ambulance Stretchers (PDF)	09/01/16
16-003	Aboveground Petroleum Tanks (PDF)	09/01/16
16-002	Delayed Egress in R-3.1 Occupancies (PDF)	03/24/16
16-001	I-3 Occupancies General Questions (PDF)	02/09/16
14-013	High Rise Water Supply (Revised) (PDF)	02/09/16

2015

15-001	Capability of Visible Alarms - Revised (PDF)	11/12/15
15-002	High-rise Tenant Separation (PDF)	06/28/15
15-003	R-2.1 Alarm Requirements (PDF)	06/28/15
15-004	Fire Flow at Existing School (PDF)	06/28/15
15-005	Multi-Purpose Buildings at School (PDF)	06/28/15
15-006	Garage Conversions to Dwellings Units and Residential Fire Sprinkler Requirements (PDF)	12/03/15
15-007	Stairway Penetrations (PDF)	12/11/15

2014

14-001	Group I-4, day care facilities (PDF)	01/28/14
14-002	Separate Buildings Created by Fire Walls & Egress (PDF)	07/29/14
14-003	Stair Pressurization Operations (PDF)	07/29/14
14-004	Emergency Voice / Alarm Communications Systems (PDF)	07/29/14
14-005	Pipe Joints Located Under Foundations (PDF)	07/29/14
14-006	Fire Alarms Systems Existing High-rise Buildings (PDF)	07/29/14
14-007	I-2 Hospitals– Patient treatment/exam rooms, & basements (PDF)	07/29/14
14-008	Residential Sprinklers Water Supply - UNDER REVIEW	11/17/14
14-009	Dedicated Function Fire Alarm Systems (PDF)	11/24/14
14-010	Means of Egress Illumination (PDF)	11/24/14
14-011	Laboratories, vocational shops and other such areas not classified as Group H, located in Group E occupancies (PDF)	12/16/14
14-012	Solar Photovoltaic Pathway Definitions (PDF)	12/16/14
14-013	High Rise Water Supply (PDF)	12/16/14
14-014	Solar PV AC Markings (PDF)	12/16/14

2013

13-001

Backflow requirements for Residential Fire Sprinkler Systems (PDF)

12/30/13

2012

12-001	Existing Building Fire Alarm Control Unit (PDF)	07/23/12
12-002	Existing Building Fire Alarm Control Unit ADA required notification (PDF)	08/01/12

2011

11-023	Access-controlled egress doors (PDF)	12/19/11
11-019	Flame Resistant Requirements for Canopies / Tents (PDF)	12/19/11
11-016	Group R-2 Occupancies (PDF)	09/08/11
11-015	Fire Flow Requirements with Mixed Construction (PDF)	12/19/11
11-014	Reductions in Required Exiting Width for Indoor and outdoor arenas.(PDF)	12/19/11
11-010	M Occupancy 2007 California Fire Code (PDF)	12/19/11
11-007	Strobes in Medical Exam Rooms/ B Occupancies (PDF)	08/18/11
11-006	Sprinklers in Concealed Spaces (PDF) (Revised)	08/18/11
11-002	I occupancies "similar spaces (PDF)	12/19/11

2010

10-004	Secondary means of Transmission via GSM for DACT (PDF)	04/12/10
10-005	Photo-luminescent Exit signs (PDF)	06/08/10
10-006	Security Shutters & Roll down doors (PDF)	04/12/10
10-007	Egress Courts.(PDF)	04/12/10
10-008	Group B Fire Alarm, application requirements during remodeling (PDF)(Revised)
10-009	Solid Wood door thickness requirements for wildfire protection(PDF)	04/12/10
10-010	Group E Exterior Audible Alarms (PDF)	04/12/10
10-011	Manual Fire Alarm Box Height Exception (PDF)	04/12/10
10-012	Application of wildfire protection requirements to agricultural buildings (PDF)	04/12/10
10-013	Exterior Windows & Glazed Doors in Wildfire Protection areas (PDF)	04/12/10
10-014	Sprinkler requirements for less than 24hr adult day care facility (PDF)	06/0810
10-015	Requirements for pathway marking or low level exit signs (PDF)	06/08/10
10-017	Fire alarm systems definition (PDF)	10/06/10
10-019	Open flame devices in Assembly occupancies (PDF)	06/08/10
10-020	Installation of smoke alarm in sleeping unit vs. living room (PDF)	06/08/10
10-021	Heat detectors in ceiling attic spaces (PDF)	06/08/10
10-022	Power-limited Fire alarm cabling installation (PDF)	06/08/10
10-023	Means of Egress Illumination (PDF)	06/08/10
10-024	Berthing & Fuel dispensing at a Marina Dock (PDF)	06/08/10
10-026	Increase in area if sprinklered (PDF)	06/08/10
10-028	Elevator Lobbies in Group I-2 occupancies (PDF)	06/08/10
10-029	Elevators used as an Accessible means of egress (PDF)	06/08/10
10-030	Fire Sprinklers in Permanent Portable Buildings for Group "E" Occupancies (PDF)	01/11/11
10-031	Omission of Fire Sprinklers from exterior concealed spaces (PDF)	01/13/11
10-033	Combination Fire alarm/Burglar Alarm system requirements (PDF)	01/13/11
10-037	School ground gates and fences within path of the Exit Discharge (PDF)	10/12/10
10-041	Automatic Dispensers for Alcohol Based Hand Sanitizers (PDF)	10/06/10
10-044	Fire alarm boxes at horizontal exits (PDF)	10/06/10
10-046	R-2 visible alarm notification capabilities (PDF)	01/28/11
10-048	Hydraulic Nameplate (PDF)	05/23/11
10-050	Separated occupancies versus non-separated occupancies (PDF)	07/25/11
10-056	Fire Alarm System Requirements in a mixed use occupancy containing Group I-2.1 and Group B occupancy (PDF)

2009

09-064	Attic Ventilation (PDF)	Draft
09-063	Fire Sprinklers in Unenclosed Shade Structures (PDF)	04/22/10
09-059	Smoke Fire Dampers (PDF)	Draft
09-056	Strobes in Medical Exam Rooms/B Occupancies (PDF)	11/04/09
09-051	Locking Fire Extinguisher Cabinets (PDF)	11/04/09
09-045	Occupancy Classification of a High School Laboratory (PDF)	11/04/09
09-042	Definition of Accessible Concealed Space (PDF	08/14/09
09-033	2007 California Building Code Section 716.5.4. (PDF)	08/14/09
09-032	Fire Extinguisher Access (PDF)	11/0409
09-028	Corridor vs. Room (PDF)	08/14/09
09-027	Definition of Noncombustible (PDF	08/14/09
09-024	Decking and Under-floor Wildfire Protection (PDF)	08/14/09
09-021	Class I Standpipes for Smokeproof Enclosures (PDF)	08/14/09
09-017	Mixed Occupancies (PDF)	08/14/09
09-015	Group E's serving less than 100 for 2 ½ years or less in age (PDF)	09/08/09
09-011	Visual illumination in elevator cars (PDF)	08/14/09
09-005	Visual Notification Devices for R-1 Occupancy (PDF)	05/1109
09-003	Residential Care Facility for the Elderly (I-1) (PDF)	08/14/09