Indiana Marijuana Laws: What Hoosiers Visiting Michigan Should Know

No. As of October 2026, Indiana has no legal adult-use or medical marijuana, and possessing any amount is a crime. No bill changing that became law in 2026: the 2026 edition of the Indiana Code, published after that year’s session, keeps the possession law as it stood in 2025.

That sets Indiana apart from its neighbors. Michigan to the north and Illinois to the west both allow adults 21 and older to buy cannabis, and Ohio to the east legalized adult use in 2023. Hoosiers who visit Michigan can shop legally here, but the law changes the moment they cross back.

In Indiana, possessing marijuana is a Class B misdemeanor, punishable by up to 180 days in jail and a fine of up to $1,000. A prior drug conviction raises it to a Class A misdemeanor, with a jail term of up to one year and a fine of up to $5,000. With a prior drug conviction, 30 grams or more of marijuana, or 5 grams or more of hash oil or hashish, makes it a Level 6 felony.

Marijuana packaged to look like low-THC hemp extract also counts as a Class A misdemeanor when the person knew or should have known. Indiana law allows a one-time conditional discharge for a first misdemeanor possession offense.

None of these penalties depends on where the cannabis was bought.

Not for Indiana possession. A federal rule that took effect on April 28, 2026 moved only two things to Schedule III: FDA-approved drugs that contain marijuana, and marijuana covered by a state medical marijuana license. All other marijuana, adult-use included, is still in Schedule I as of October 2026. A broader proposal to move all marijuana to Schedule III went to a federal hearing in the summer of 2026; as of late October the judge’s recommended decision was still pending and no final rule had been published.

None of that touches Indiana’s own law, which still makes possession a crime. And the April rule is aimed at licensed medical businesses: it does not say that patients may carry medical marijuana across state lines.

Federal law has been narrowing what counts as legal hemp. Congress set a new definition that counts THCA toward hemp’s 0.3% THC limit and excludes finished products with more than 0.4 mg of total THC per container. Most intoxicating hemp-THC products stop qualifying as hemp. The change was set for November 12, 2026, and a stopgap law pushed most of it to December 11, 2026.

On the Michigan side, cannabis over 0.3% THC, THCA included, is marijuana that only licensed marijuana businesses may sell, and delta-8 THC counts as marijuana too. Read the label of anything you buy, and buy cannabis only from a licensed store.

Michigan’s adult-use law covers adults 21 and older, and you do not need a Michigan ID to buy. Every Michigan store checks a valid driver’s license or government-issued photo ID before a sale, and our New Buffalo pages note that, in most cases, valid government IDs from other states are accepted. Bring your ID to confirm.

While you are here, Michigan’s limits apply to you: up to 2.5 ounces per transaction and in your possession, with no more than 15 grams of it as concentrate. Use cannabis only on private property where the owner allows it. Public use is not allowed, hotels and other property owners may ban it, and no one may use cannabis while driving or smoke it in a vehicle on a public road.

Michigan has no numeric THC limit for drivers, but it bans driving under the influence and has a zero-tolerance law for any amount of a Schedule 1 drug, which includes marijuana. If you have used cannabis, do not drive.