California Cannabis Business Guide
RecreationalCalifornia is the largest legal cannabis market in the US with over 8,500 active licenses. The state requires all cannabis products to be tested by licensed laboratories before sale.
Active Licenses
8,500
Regulator
Department of Cannabis Control (DCC)
Testing Labs
19
Consumption Lounges
Legal
Testing Labs in California
Find licensed cannabis testing laboratories
Professionals in California
CPAs, lawyers, and consultants
Department of Cannabis Control (DCC)
Official state regulator website
Testing Labs in California
View allSC Labs
Santa Cruz, California
Landau Laboratories
Cathedral City, California
Harrens Lab
Hayward, California
pH Solutions
Monrovia, California
Cannabis Professionals Serving California
View allCalyx CPA
CPAs & Accountants
Calyx CPA specializes exclusively in cannabis and psychedelic businesses, offering tax preparation, planning, and IRS audit representation nationwide.
GreenGrowth CPAs
CPAs & Accountants
Expert CPA services for cannabis businesses - cultivators, retailers, and MSOs. Specializes in 280E compliance and scaling.
Cannabis CPA Tax
CPAs & Accountants
Boutique CPA firm serving small- and medium-sized cannabis and CBD companies across 19 states and DC.
MGO CPA
CPAs & Accountants
One of the first national accounting firms to develop targeted services for the cannabis and hemp industries.
HBK Cannabis Solutions
CPAs & Accountants
Accounting Today Top 100 CPA Firm with a dedicated team of cannabis industry subject matter experts.
CohnReznick
CPAs & Accountants
Top 25 national firm helping both plant- and non-plant-touching companies navigate cannabis accounting challenges.
Latest Updates
All newsCongressman Presses DOJ and DEA on Cannabis Rescheduling Timeline
Congressman Steve Cohen sent a letter to AG Bondi and DEA Administrator Cole demanding an update on cannabis rescheduling progress. The letter came 99 days after Trump signed the executive order directing 'expeditious' completion of Schedule III rulemaking.
New Congressional Research Report on Cannabis Rescheduling Published
Congressional researchers released a new analysis noting that rescheduling would be a 'transitional' step requiring follow-up banking, commerce, and justice reforms. The report emphasized that rescheduling alone would not bring state markets into compliance with federal law.
Virginia Legislature Sends Cannabis Sales Legalization Bill to Governor
Virginia's legislature voted to adopt legislation legalizing adult-use cannabis dispensary sales, sending the bill to Gov. Spanberger's desk. The bill sets a January 1, 2027 launch date for retail sales, covering taxes, licensing, and regulatory duties.
Cannabis MSOs Owe $1.6 Billion in Unpaid 280E Taxes as IRS Fights Back
Major cannabis multistate operators collectively owe more than $1.6 billion in unpaid federal taxes under Section 280E. The IRS argued that Trump's rescheduling executive order does not change tax obligations because it has not been finalized.
Federal Government Warns About Cannabis and Hemp in Drug Tests
Federal agencies issued warnings about the impact of medical cannabis and hemp product use on standard drug testing protocols. The guidance came amid growing tension between state-legal marijuana programs and federal workplace testing requirements.