Colorado voters approved the legalization of medical marijuana in 2000 and retail (recreational) marijuana in 2012. Both came with a host of laws and regulations, which are continually changing. These laws include how and to whom the drug can be sold, and how the state collects taxes on it. Keeping track of all these laws can be challenging, so the Colorado Legislative Council — the General Assembly’s non-partisan research agency — has just issued a new Colorado Marijuana Handbook. Lawmakers, attorneys, those in the cannabis industry, and even consumers will find this publication, issued in March 2021, to be a helpful reference for understanding the state’s many laws on this topic. For additional resources, search “marijuana” in the State Publications Library catalog.