3901 General — 2025 California Fire Code

Facilities where plant processing and solvent-based extraction are conducted, including but not limited to cultivation and related activities, pre-extraction or post-extraction, shall comply with this chapter and the California Building Code . The use, storage, transfilling and handling of hazardous materials in these facilities shall comply with this chapter, other applicable provisions of this code and the California Building Code .

Exception: Greenhouses in compliance with Section 3112 of the California Building Code not utilizing carbon dioxide enrichment.

Existing buildings or facilities used for the processing or extraction of plant oils using solvents shall comply with this chapter. Existing extraction processes where the medium of extraction is changed to include the use of solvents shall comply with this chapter.

Permits shall be required as set forth in Sections 105.5 and 105.6.

Where used, horticultural lights or lighting systems shall be listed and labeled in accordance with UL 8800 and installed in accordance with the listing, the manufacturer’s installation instructions and the California Electrical Code .

Carbon dioxide-enriched atmospheres generated using methods to create carbon dioxide as a byproduct shall meet the requirements of Sections 5307.4.1 through 5307.4.7.