Los Altos Municipal Code Ch. 64 Pyrophoric Materials

Chapter 64 of the 2025 California Fire Code and 2024 International Code is amended as follows:

Section 6405 USE

Section 6405.3.1 is added to read:

6405.3.1 Silane distribution systems automatic shutdown. Silane distribution systems shall automatically shut down at the source upon activation of the gas detection system at levels above the alarm level and/or failure of the ventilation system for the silane distribution system.

Appendix B FIRE-FLOW REQUIREMENTS FOR BUILDINGS

Appendix B of the 2025 California Fire Code and 2024 International Code is amended as follows:

Section B105 FIRE=FLOW REQUIRED FOR BUILDINGS

Section B105.2 is amended as follows:

B105.2 Buildings other than one- and two-family dwellings, Group R-3 and R-4 buildings and townhouses. The minimum fire-flow and flow duration for buildings other than one- and two-family dwellings, Group R-3 and R-4 buildings and townhouses shall be as specified in Tables B105.1(2) and B105.2.

Exceptions: [SFM] Group B, S-2 and U occupancies having a floor area not exceeding 1,000 square feet, primarily constructed of noncombustible exterior walls with wood or steel roof framing, having a Class A roof assembly, with uses limited to the following or similar uses:

California State Parks buildings of an accessory nature (restrooms).

Safety roadside rest areas (SRRA), public restrooms.

Truck inspection facilities (TIF), CHP office space and vehicle inspection bays.

Sand/salt storage buildings, storage of sand and salt.

The maximum fire flow reduction for all commercial buildings greater than 30,000 square feet and residential podium buildings shall not exceed twenty-five (25) percent of the fire flow specified in Table B105.1(2). The maximum fire flow reduction for all other buildings shall not exceed fifty (50) percent of the fire flow specified in Table B105.1(2).

Appendix C FIRE HYDRANT LOCATIONS AND DISTRIBUTION

Appendix C of the 2025 California Fire Code and 2024 International Code is amended as follows:

Section C102 NUMBER OF FIRE HYDRANTS

Section C102.1 is amended to read:

C102.1 Minimum number of fire hydrants for a building. The number of fire hydrants available to a building shall be not less than the minimum specified in Table C102.1, utilizing the base fire flow without fire sprinkler reduction.

Appendix D FIRE APPARATUS ACCESS ROADS

Appendix D of the 2025 California Fire Code and 2024 International Code is amended as follows:

Section D103 MINIMUM SPECIFICATION

Section D103.1 is deleted:

Section D103.2 is amended as follows:

D103.2 Grade. The maximum grade of a fire department apparatus access road shall not exceed 15- percent, unless approved by the fire code official.

Section D103.3 is amended as follows:

D103.3 Turning radius. The required turning radius of a fire apparatus access roads shall be a minimum of 30 feet inside, and a minimum of 50 feet outside.

Section D103.4 is amended as follows:

D103.4 Dead ends. Dead-end fire apparatus access roads and/or driveways in excess of 150 feet (45 720 mm) shall be provided with width and turnaround provisions in accordance with the Santa Clara County Fire Department apparatus access and turnaround standards.

Section D103.6 is amended as follows:

D103.6 Signs. Where required by the Fire Code Official, fire apparatus access roads shall be designated and marked as a fire lane as set forth in Section 22500.1 of the California Vehicle Code and the Santa Clara County Fire Department A-6 Standard. Signs shall have a minimum dimension of 12 inches (305 mm) wide by 18 inches (457 mm) high and have red letters on a white reflective background. Signs shall be posted on one or both sides of the fire apparatus road as required by Section D103.6.1 or D103.6.2.

(Ord. No. 2025-542, § 4, 10-28-2025)