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County Administrator's Office

Sonoma County Cannabis Program

Sonoma County Cannabis Program

Reminder for all Sonoma County Cannabis Cultivators

Please contact the Sonoma County Department of Agriculture / Weights & Measures (AWM) to schedule a cannabis canopy verification before harvest to confirm canopy size for your tax assessment. The inspection fee is $225 per hour. 

For indoor and mixed-light cultivation, a canopy verification should be conducted quarterly. For outdoor cultivation, a canopy verification should be conducted in the fall before harvest. 

In all cases, we are only able to verify canopy for tax purposes when the plants are in the ground and/or growing medium. 

If you suspect damage to your crop due to pests, disease, or an extreme weather event, please contact us right away to schedule a canopy loss verification. 

Call (707) 565-2371 or email

Continuing Multi-tenant Cannabis Land Uses

Multi-tenant Ordinance (No. 6356) Section III(a) states “The expiration date for each zoning permit is hereby extended for 5 years from the date the permit was issued, except that a zoning permit will expire if the use ceases for a continuous period of one year.”   Under this provision, if a multi-tenant cannabis operator wishes to forgo a growing season without expiring their permit, the operator must demonstrate the use has not ceased by maintaining their local cannabis cultivation permit and state cultivation license, maintaining title or lease of the land, paying inspection fees, allowing inspections, complying with BMPs, requesting canopy verifications as needed, and filing tax statements.  

Cannabis Program Update & Environmental Impact Report

More information on the Cannabis Program Update & EIR

Multi-Tenant Ordinance Adopted 10/26/2021

On October 26, 2021, the Board of Supervisors adopted Urgency Ordinance No. 6356 to expire September 10, 2023 prohibiting new permits for large-scale multi-tenant commercial cannabis cultivation in unincorporated Sonoma County.

Visit County Ordinances.

Determining Canopy

The Sonoma County Department of Agriculture/Weights & Measures is tasked with verifying canopy of cannabis cultivated in Sonoma County. This canopy is determined in a variety of ways. Below is a link to a comprehensive guide on how canopy is determined.

Determining Canopy - A Comprehensive Guide  (PDF: 3.9 MB)

Cannabis Equity Program

The Governor's Office of Business and Economic Development (GO-Biz), in partnership with the Department of Cannabis Control, provides Cannabis Equity Grants Program for Local Jurisdictions. This program seeks to advance economic justice for populations and communities disproportionately affected by cannabis prohibition by providing funding to local jurisdictions that are committed to promoting equity in the legal cannabis marketplace and eliminating barriers to entering the regulated cannabis industry.

GO-Biz Cannabis Equity Grants Program Webpage

In April 2021, the County received a Type 1 Grant for purposes of conducting a cannabis equity assessment and developing a local equity program. 

April 13, 2021 Board of Supervisors Meeting Materials

On November 16, 2021, the Board of Supervisors received the Cannabis Equity Assessment and approved the creation of a Local Equity Program. 

Sonoma County Cannabis Equity Assessment  (PDF: 6.2 MB)

Spanish Cannabis Equity Assessment

November 16, 2021 Board of Supervisors Meeting Materials

Draft Local Cannabis Equity Program Manual is now available. 

Draft Local Cannabis Equity Program Manual  (PDF: 611 KB)

Spanish Draft Local Cannabis Equity Program Manual

Information for the Public

Information For Businesses

Licensing & Regulation Assistance


Cannabis Taxation
Auditor-Controller-Treasurer-Tax Collector

Permits & Inspections

Edible Medical Cannabis Manufacturing and Dispensaries
Environmental Health & Safety

Cottage and Outdoor Cultivation
Agriculture, Weights & Measures

Land Use & Building Permits, Zoning, Code Enforcement
Permit & Resource Management Department (Permit Sonoma)

Hazardous Materials & CUPA
Fire Prevention

Compliance Inspections

Best Management Practices, Scales and Scanners
Agriculture, Weights & Measure