CONNECT with the CityTechnical Bulletins
Technical Bulletins (TB) clarify the application and interpretation of code requirements, policies or procedures.
Updates to TBs
DSD continuously updates its publications to align with the latest building codes, construction practices, safety standards, design guidelines and regulatory changes. Here is a summary of the most recently updated TBs:
- Nov. 4, 2025 | TB-BLDG-17-1 "How to Become a Registered Special Inspector"
- Oct. 7, 2025 | TB-BLDG-17-5 "Approval of Building Product Listing and Evaluation Agencies"
- Oct. 7, 2025| TB-BLDG-17-6 "Testing and Inspections for Proof of Compliance"
- Oct. 2, 2025| TB-BLDG-17-2 "Duties of Special Inspector, Approved Material Testing Laboratory, and Special Inspection Agency"
Technical Bulletin Search
The purpose of this Technical Bulletin is to establish the minimum requirements for standpipe systems required by the California Fire Code (CFC) for non-high-rise buildings. See Technical Bulletin FIRE-9-1 for standpipe requirements for high-rise buildings. In addition to the requirements contained in this bulletin, standpipe systems shall also comply with the California Building Code (CBC) and NFPA 14.
Revised
The purpose of this Technical Bulletin is to establish the requirements for Fire Department Connections (FDCs) for standpipe and sprinkler systems in non-high-rise buildings. In addition to the requirements contained in this bulletin, FDCs shall comply with the California Fire Code (CFC), NFPA 13, NFPA 13R, NFPA 14 and NFPA 24. For high-rise building, see Technical Bulletin FIRE 9-1, Sprinklers, Standpipes, Fire Pumps and Secondary Water Supply for High-Rises.
Revised
Requirements for Exterior Fire Alarm Notification Appliances
This Technical Bulletin provides guidelines for compliance with the requirements for the installation of fire alarm notification appliances on the exterior of buildings.
Revised
Fire Alarm Systems Required in Existing Group R-1 and R-2 Occupancies
The purpose of this Technical Bulletin is to provide guidance in meeting the fire alarm system requirements of the California Fire Code (CFC) Section 1113 for existing Group R-1 and Group R-2 occupancies.
Revised
Processing and Extraction Facilities
The purpose of this technical bulletin is to describe the fire and life safety requirements for marijuana/cannabis plant processing and extraction facilities.
Revised
The purpose of this technical bulletin is to assist designers on determining the minimum
required number of plumbing fixtures.
Revised
ABS and PVC Drain, Waste and Vent Piping
The purpose of this technical bulletin is to establish the requirements for the installation of acrylonitrile-butadiene-styrene (ABS) or polyvinyl-chloride (PVC) piping used for drain, waste and vent (DWV) systems in residential buildings classified as Residential Group R-2 and R-3 occupancies, such as single-family residences, duplexes, high rise buildings and townhouses.
Revised
Protection of Existing Buildings with Residential Fire Sprinklers
The purpose of this Technical Bulletin is to clarify the City of San Diego's policy on when fire sprinkler protection is required for additions and alterations to existing dwellings not protected with a sprinkler system.
Revised
Exhaust System for Residential Occupancies of Non-Rated Construction
The purpose of this technical bulletin is to clarify the installation requirements of environmental air ducts in residential occupancies.
Revised
The purpose of this bulletin is to establish the procedures for permitting townhouses constructed in accordance with the provisions of the California Residential Code (CRC), Section R302.2. Specifically, the focus of this bulletin is to address the construction of the walls separating townhouses, utilities providing services to townhouses, floor area projections, and accessibility.
Revised