Consumers should know:

It is illegal to use marijuana while operating a vehicle. Adults should make plans for sober transportation when at risk of becoming impaired by marijuana or marijuana products.

Like alcohol, consumers cannot have an open container of adult-use marijuana or marijuana products in the passenger area of a car while on the road or at a place where the public has access.

Consuming marijuana or marijuana products in a public place is prohibited, as is smoking marijuana in any area where smoking tobacco is prohibited.

Per transaction, a retailer cannot sell more than one ounce of marijuana or five grams of marijuana concentrate – which are also the possession limits in Massachusetts – to an individual who is age 21 or older.

It is unlawful to carry marijuana or marijuana products across state lines or federal borders.

The impairment effects of edible marijuana may be delayed by two hours or more. Start low, go slow.