Chapter 39 — Processing and Extraction Facilities

California Fire Code, Section 3901.6 is added to read:

3901.6 Technical Assistance Report. A Technical Assistance Report (TAR) shall be required for all new extraction and processing facilities as set forth in Section 104.8.2 to provide a complete analysis of the facility and operations. Additional Technical Reports are required for extraction equipment not listed I accordance with UL 1389 as set forth in Section 3904.2.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

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California Fire Code, Section 3903.2 is amended to read:

3903.2 Prohibited Occupancies. Extraction processes utilizing flammable gasses or flammable liquids shall not be located in a building containing a Group A, E, I or R occupancy, or occupancies regulated by the California Residential Code.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3903.3 is added to read:

3903.3 Location. The extraction equipment and extraction processes utilizing hydrocarbon solvents shall be located in a room or area dedicated to extraction. For other than CO2 and nonhazardous extraction process, the extraction equipment and process shall be separated from other occupancies and uses with fire barriers where required by CBC Section 508.4.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3903.5 is amended to read:

3903.5 Use of Flammable and Combustible Liquids. Extraction and post oil processing operations using flammable liquids or combustible liquids heated above their flashpoint, including dispensing of flammable liquids between containers, shall be performed in one of the following locations:

1. An exhausted chemical fume hood installed in accordance with the California Building Code and California Mechanical Code.

2. A room or approved exhausted enclosure with an approved exhaust system installed in accordance with the California Mechanical Code.

Electrical equipment used within the chemical fume hood shall be rated for use in flammable atmospheres. Heating of flammable or combustible liquids over an open flame is prohibited.

Exceptions:

1. The use of a heating element not rated for flammable atmospheres, where documentation from the manufacture, or approved testing laboratory indicates the element is rated for heating of flammable liquids.

2. Unheated processes at atmospheric pressure using less than 16 oz. (473 ml) of flammable liquids shall not be required to comply with 3903.5(1) or 3903.5(2).

• (Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3903.5.1 and 3903.5.2 are added to read:

3903.5.1 Electrical Components. All electrical components within the chemical fume hood, room, or exhausted enclosure shall be approved permanent wiring, interlocked such that the exhaust system shall be in operation for lighting and components to be used.

3903.5.2 Refrigerators, Freezers, and Cooling Equipment. Refrigerators, freezers, and other cooling equipment used to store of cool flammable liquids shall be listed for the storage of flammable/combustible liquids or shall be listed for Class I, Division 1 locations, as described in the California Electrical Code.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

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TOWN OF WINDSOR CODE

California Fire Code, Section 3903.6 is amended to read:

3903.6 Liquefied Petroleum Gas. Liquefied petroleum gases (LPG) shall not be released to the atmosphere except when released in accordance with Section 7.3 of NFPA 58. LPG liquid piping systems shall follow California Fire Code Chapter 61.

California Fire Code, Section 3903.6.2 is added to read:

3903.6.2 Electrical Systems. Electrical equipment shall be in accordance with Section 3903.6.2.1 through 3906.2.5.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3903.6.1 is added to read:

3903.6.1 Exhaust. An approved exhaust system shall be provided for LPG extractions. (Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3903.6.1.1 is added to read:

3903.6.1.1 Installation. The exhaust systems shall be installed and maintained in accordance with the California Mechanical Code. (Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3903.6.1.2 is added to read:

3903.6.1.2 Processes. All LPG extraction operations, including processes for off-gassing spent plant material and oil retrieval, shall be conducted within a chemical fume hood, enclosure, or room in compliance with the California Mechanical Code.

California Fire Code, Section 3903.6.2.1 is added to read:

3903.6.2.1 Electrical Bonding and Grounding. All conductive equipment and conductive objects within the exhaust room shall be bonded and grounded in accordance with California Electrical Code.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3903.6.2.3 is added to read:

3903.6.2.2 Classified Areas. The area within a hood or enclosure used for LPG extractions shall be classified as a Class 1, Division 1 hazardous location in accordance with the California Electrical Code. Areas adjacent to Class 1, Division 1 locations shall be classified in accordance with the California Electrical Code. (Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

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California Fire Code, Section 3903.6.2.4 is added to read:

3903.6.2.4 Emergency Power. An automatic emergency power system shall be provided for the following items, when installed:

1. Extraction room lighting

2. The door shall be provided with a selfclosing or automatic closing device.

3. The door shall be equipped with panic or fire exit hardware.

4. The exit access travel distance cannot be increased as allowed in CFC Section 1017.2.2 for extraction/cultivation facilities.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

2. Extraction room ventilation system

3. Solvent gas detection system

Exception: Except where required by other sections of this code, extraction room ventilation systems in existing facilities are not required to have a secondary power source, such as emergency or standby power until such time that the medium of extraction or solvent is changed.

California Fire Code, Section 3903.8 is added to read:

3903.8 Carbon Dioxide Extraction. Carbon dioxide extraction shall comply with sections 3903.8.1, 3903.8.2, and 3903.8.3.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3903.6.2.5 is added to read:

3903.6.2.5 Gas Detection Systems. Gas detection systems shall be provided with constant non-interlocked power.

California Fire Code, Section 3903.8.1 is added to read:

3903.8.1 Storage and Handling. All carbon dioxide compressed gas cylinders shall be secured in approved method to prevent falling. (Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3903.7 is added to read:

3903.7 Means of Egress. For extraction rooms using hazardous materials, each room shall be provided with at least one exit access door complying with the following:

1. The door shall swing in the direction of egress travel.

California Fire Code, Section 3903.8.2 is added to read:

3903.8.2 Carbon Dioxide Gas Detection. An approved, listed carbon dioxide detection system complying with CFC Section 5307.4 shall be installed in the carbon dioxide extraction room. Auto-calibrating and self-zeroing devices or detectors shall be prohibited.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

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TOWN OF WINDSOR CODE

California Fire Code, Section 3903.8.3 is added to read:

3903.8.3 Carbon Dioxide Discharge. The extraction equipment pressure relief devices and blow-off valves shall be piped to the exterior of the building.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3903.9 is added to read:

3903.9 Signage. The NFPA 704 hazard rating diamond sign, minimum 10" in size, and no smoking signs shall be posted on the exterior of the extraction room door.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3903.9.1 is added to read:

3903.9.1 Safety Data Sheets. All applicable safety data sheets (SDS) shall be posted in the approved location.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3903.9.2 is added to read:

3903.9.2 Warning Signage. Applicable hazard warning signage shall be posted throughout the facility as applicable for emergency equipment.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Code, Section 3904.2.2.3 is amended to read:

3904.2.2.3 Site Inspection. Prior to the operation of the extraction equipment, the engineer of record or approved professional, as approved in Section 3904.2, shall inspect the site of the extraction process once equipment has been installed for compliance with the technical report and the building analysis. The engineer or approved professional shall provide a report of findings and observations to the fire code official prior to the approval of the extraction process. The field inspection report authored by the engineer of record shall include the serial number of the equipment used in the process and shall confirm that the equipment installed is the same model and type of equipment identified in the technical report. (Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

California Fire Code, Section 3904.3 is added to read:

3904.3 Change of Extraction Medium. Where the medium of extraction or solvent is changed from the material indicated in the technical report or as required by the manufacturer, the technical report shall be revised at the cost of the facility owner and submitted for review and approval by the fire code official prior to the use of the equipment with the new medium or solvent.

For SI: 1 foot=304.8 mm.

(Ord. No. 2025-402, §§ 3, 7, 12-3-2025)

(Supp. No. 55)

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