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 early 2022 decriminalizing cannabis federally.

“This bill decriminalizes marijuana. Specifically, it removes marijuana from the list of scheduled substances (Read more...)