Some 25,000 people are expected to head to San Bernardino this weekend to watch hip-hop shows, sample marijuana products and celebrate cannabis culture during Tommy Chong’s Blazers Cup.

The festival is one of a couple dozen marijuana-themed events held each year at the city’s National Orange Show center. And California’s cannabis event circuit just keeps getting bigger, with more than 100,000 people a year attending shows such as the Chalice festival in Victorville, Emerald Cup in Santa Rosa and High Times magazine’s Cannabis Cup series.

But the future of many of those events is uncertain thanks to one sentence buried in 276 pages of rules California recently released to regulate the cannabis industry. Read the full story at The Cannifornian