Mountain View Municipal Code Div. 12 Hazardous Materials and Fume Hood Requirements

Subsection 5001.2.2.2 of the 2025 California Fire Code is amended to read as follows:

5001.2.2.2 Health hazards. The material categories listed in this section are classified as health hazards. A material with a primary classification as a health hazard can also pose a physical hazard.

1. Highly toxic and toxic materials.

2. Corrosive materials.

3. Other health hazards.

(Ord. No. 9.2025, § 8(Exh. C), 9/9/25.)

Subsection 5003.2.7 of the 2025 California Fire Code is amended to read as follows:

5003.2.7 Liquid-level limit control. Atmospheric tanks having a capacity greater than 60 gallons (227 L) and that contain hazardous material liquids shall be equipped with a liquid-level limit control or other approved means to prevent overfilling of the tank.

(Ord. No. 9.2025, § 8(Exh. C), 9/9/25.)

Add a new subsection 5003.9.11 of Section 5003.9 (General Safety Precautions) to the 2025 California Fire Code to read as follows:

5003.9.11 Fire extinguishing systems for fume hoods and workstations dispensing, handling, or using hazardous materials. Combustible and noncombustible fume hoods and workstations, which dispense, handle, or use hazardous materials shall be protected by an approved automatic fire extinguishing system in accordance with Section 2703.10.

Exception: Internal fire protection is not required for Biological Safety Cabinets that carry NSF/ANSI certification where quantities of flammable liquids in use or storage within the cabinet do not exceed 500 milliliters.

(Ord. No. 9.2025, § 8(Exh. C), 9/9/25.)