The backers of Prop. 64, the 2016 Adult Use of Marijuana Act, sold California voters on the promise that small and medium businesses would be the engine powering the state’s $7 billion legal cannabis market. So far, that’s not happening. According to a report, An Emerging Crisis: Barriers to Entry in California Cannabis, by the California Growers Association, a small-farmers advocacy group, fewer than 1% of California’s estimated 68,150 cannabis growers have secured state licenses to continue their businesses legally. The CalGrowers report estimates that 80% to 90% of growers who did business with the state’s legal storefront dispensaries prior to January 1 – when new licensing requirements went into effect – “are being pushed to the black market.”