Solano County Cannabis Information

Please note that the information here only pertains to the UNINCORPORATED areas of Solano County. Please contact the cities within Solano County for cannabis regulations pertaining to properties located within their jurisdiction.

Commercial Cannabis

The Board of Supervisors adopted Ordinance No. 2018-1799 which permanently prohibits all commercial cannabis activities including commercial cultivation, distribution, manufacturing, testing, retail sales and other State recognized license types from being established in unincorporated Solano County.


There is no prohibition on the delivery of commercial adult-use or medical-use cannabis or cannabis products to a consumer in the unincorporated areas of Solano from a retailer licensed for delivery and located in a city or county that allows such businesses.



Personal-Use Cannabis Cultivation


The Board of Supervisors adopted Ordinance No. 2017-1788 to allow non-commercial cannabis cultivation (personal cultivation) by patients, their caregivers and by recreational users.


What is Personal-Use Cannabis Cultivation?

Personal cultivation: any activity involving the planting, growing, harvesting, drying, curing, grading, trimming, or otherwise processing of marijuana plants or any parts for personal use only.


Who can Cultivate Personal-Use Cannabis?

Medical: Any patient or caregiver with a medical recommendation for medical cannabis.

Adult-Use: Any person 21 years and older.

This cannabis CANNOT be sold to others.


How many Personal-Use Cannabis Plants are Allowed?

Medical Cannabis:  Up to 6 plants or 12 immature plants, per residence

·         A caregiver may grow up to 6 mature or 12 immature plants per patient for up to 5 patients.

*A Caregiver Cultivation Permit must first be obtained prior to cultivation. Please contact the Department of Resource Management Planning Services for an application packet and current application fee.  Planning Applications & Instructions 

Adult-Use Cannabis:  Up to 6 plants, per residence.



Where can Personal-Use Cannabis Cultivation take place?

Indoor cultivation of cannabis for personal use in compliance with MAUCRSA (Medical Marijuana Regulation and Safety Act) is allowed in the unincorporated County in compliance with state law and County Ordinance No. 2017-1788:

·         Must be indoors; in a residence or in an accessory structure located on the same parcel as the residence.

·         The residence on the property must be inhabited by the person growing the cannabis.

·         A greenhouse is defined as “indoors” as long as it is made of rigid, see-through material with a locking door fully inclosing the cannabis.

·         Cultivation and all processing activities (such as trimming) must occur in a locked room and away from children.

·         Ozone generators and gas devices are not to be used in the cultivation room.

·         No open flame or burning is allowed in the cultivation room.

·         Grow lights must be shielded as to not be visible from outside or turned off between 9:00 p.m. and 6:00 a.m.


Exception for Personal-Use Cultivation of Outdoor Medicinal Cannabis


Outdoor Cultivation may be permitted for up to three (of the six) medicinal cannabis plants upon approval of an Exception Request by the Department of Resource Management. Please contact the Department of Resource Management for an application packet and current application fee: Planning Applications & Instructions 


Who can I contact if I have questions about the Medical Marijuana Identification Card Program (MMICP)?

You can contact the Solano County Medical Marijuana Program at:

Department of Public Health

275 Beck Avenue

Fairfield, CA 94533

(707) 784-8060

You can also visit the California Department of Public Health website for the Medical Marijuana Identification Card Program Information




Additional Resources:


For Information on Filing a Complaint Against a Licensed or Unlicensed Cannabis Business


California Cannabis Portal



For Information on State Licensing of Commercial Cannabis


-  California Bureau of Medical Cannabis Regulation

    Licensing for transportation, distribution, lab testing, and retail operations


     Cultivation licensing and track and trace program

-  Office of Manufactured Cannabis Safety Branch Manufacturing


Industrial Hemp

Industrial hemp is defined as a Cannabis sativa L. plant containing more than 3/10th  of 1% of THC (Cal. Health & Safety Code §11018.5). Please contact the Solano County Agriculture Commissioner at (707) 784-1310 to discuss registration and cultivation requirements for industrial hemp.