Timeline: Cannabis Legislation in the U.S.

At the federal level, cannabis is still considered an illegal substance. That said, individual states do have the right to determine their own laws around cannabis sales and usage.

This visual from New Frontier Data looks at the status of cannabis in every state and the timeline of when medical and/or recreational use became legal.

Cannabis Through the Years

In the U.S., the oldest legalese concerning cannabis dates back to the 1600s—the colony of Virginia required every farm to grow and produce hemp. Since then, cannabis use was fairly wide open until the 1930s when the Marihuana Tax Act was enforced, prohibiting marijuana federally but still technically allowing medical use.

Jumping ahead, the Controlled Substances Act was passed in 1970, classifying cannabis as Schedule I drug—the same category as heroin. This prohibited any use of the substance.

However, the 1970s also saw a counter movement, wherein many states made the move towards decriminalization. Decriminalization means that although possessing cannabis remained illegal, a person would not be subject to jail time or prosecution for possessing certain amounts.

By the 1990s, some of the first states passed laws to allow the medical usage of cannabis, and by 2012 two states in the U.S.—Washington and Colorado—legalized the recreational use of cannabis.

Cannabis Legislation Today and Beyond

The MORE Act (the Marijuana Opportunity Reinvestment and Expungement Act) was passed in the House early 2022, and if made law, it would decriminalize marijuana federally.

“This bill decriminalizes marijuana. Specifically, it removes marijuana from the list of scheduled substances under the Controlled Substances Act and eliminates criminal penalties for an individual who manufactures, distributes, or possesses marijuana.”– U.S. Congress

Cannabis still remains illegal at the federal level, but at the state levels, cannabis is now fully legal (both for medicinal and recreational purposes) in a total of 22 states.

Over 246 million Americans have legal access to some form of marijuana products with high THC levels. Looking to the future, many new cannabis markets are expected to open up in the next few years:

The earliest states expected to open up next for recreational cannabis sales are Minnesota and Oklahoma. There is always a lag between legalization and actual sales, wherein local regulatory bodies and governments set standards. States like Kentucky, on the other hand, aren’t likely to even legalize medicinal cannabis until 2028.

It’s estimated that by 2030, there will be 69 million cannabis consumers in the country, up 33% from 2022.

Overall, the U.S. cannabis market is likely an important one to watch as legal sales hit $30 billion in 2022. By the end of the decade, that number is expected to be anywhere from $58 billion to as much as $72 billion.