Connecticut

Overview

Connecticut legalized adult-use cannabis in 2021, and retail sales began in January 2023. Adults 21+ may possess up to 1.5 ounces on their person and up to 5 ounces secured at home or in a locked vehicle trunk or glove box. Home cultivation is allowed within per-adult and per-household plant caps. The Department of Consumer Protection regulates the adult-use and medical markets. Some towns prohibit cannabis businesses.

Last reviewed October 2026. General information, not legal advice.

What's Legal

Public consumption is prohibited; consumption is allowed on private property and licensed social establishments.

Possession Limits

1.5 oz in public; up to 5 oz at home

Home Growing

Up to 3 mature and 3 immature plants per person, 12 per household

Driving and Cannabis

Driving while impaired by cannabis is illegal in Connecticut, as it is in every state, whether or not the cannabis was obtained legally. Officers may rely on field sobriety tests, drug recognition evaluations, and blood tests, and some states set specific THC limits or zero-tolerance rules. Consuming cannabis in a vehicle and carrying open or unsealed packages where the driver can reach them are commonly prohibited. If you have used cannabis, the safest choice is not to drive.

Crossing State Lines and Federal Law

Taking marijuana across state lines is illegal under federal law, even between two states where cannabis is legal, and it may also violate the law of the state you enter. Marijuana is also prohibited on federal land, in national parks, and at airports under TSA jurisdiction. In 2026 the federal government moved FDA-approved products and state-licensed medical marijuana to Schedule III, but adult-use marijuana remains a Schedule I substance, and rescheduling does not legalize interstate transport. Separate federal changes to the legal definition of hemp take effect in late 2026 and will restrict many intoxicating hemp-derived THC products.

Connecticut Cannabis FAQ

Compare Connecticut with every other state in our cannabis laws comparison table.

Official Resource

Cannabis laws change often, and limits, penalties, and program rules can differ from what is summarized here. This page is general information, not legal advice. Before you rely on any detail, check the official state source below or consult a licensed attorney in Connecticut.