Colorado aims to set stricter limits on cannabis concentrates, medical marijuana
Colorado leaders want to make it harder to get high-potency marijuana concentrates, but a new bill that advanced Tuesday stops short of imposing THC caps.
Why it matters: Backed by Colorado Attorney General Phil Weiser, the legislation represents a rare effort to crack down on the state's first-in-the nation marijuana industry.
- In recent years, lawmakers approved new laws that loosened regulations on the industry and made it easier than ever to smoke or ingest cannabis in the state.
- The new legislation is designed to address loopholes in current law that the sponsors believe allow teenagers to better access marijuana concentrates.
What's happening: The legislation aims to make it harder for medical marijuana β which enjoys fewer regulations β to get passed to others by:
- Requiring a doctor to take more steps to authorize a medical marijuana card, particularly for those aged 18-20.
- Creating a medical marijuana purchase tracking system to prevent looping, in which patients can visit multiple stores to exceed the per-purchase cap.
- Limiting most single-day purchases to 8 grams, instead of the current 40 grams.
Other elements of the legislation require the state to conduct a public information campaign about high-potency THC; provide $3 million for scientific research; and set rules for new individual packaging.
What they're saying: A Medical Center of Aurora psychiatrist called cannabis use and addiction an "emerging epidemic ... that threatens to swallow the lives of a whole generation of Coloradans."
- Weiser, a Democrat, called teenage use of high-THC products "a critical public health challenge."
Get smart: Concentrates β such as vape cartridges, wax, dab and shatter β represent about one-third of the state's marijuana market.
- The average potency of concentrates is 69%, compared to 18% for a pre-rolled joint.
- Since adult-use legalization in 2014, concentrate sales increased eightfold, faster than any other type of product.
- A 2019 survey of Colorado high school students found 10% dabbed at least once in the last 30 days, compared to 7% in 2017.
Between the lines: The legislation is actually a political win for the cannabis industry because the sponsors did not include potency caps as initially planned, and top advocates are supportive of the intent.
- Still, the industry wants to see the language about the research change because they say it would likely produce a predetermined negative outcome.
- The Marijuana Industry Group also opposes the lower limits on medical marijuana purchases.

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