Here is a summary of the laws and a list of offline and online stores within 10 states where both recreational use and medical use of cannabis is legal:

California

Only people 21 and over can legally possess or use marijuana. The law bans all public use of marijuana. California residents are able to cultivate up to 6 living plants.

Alaska

Only people 21 and over can legally possess or use marijuana. The law bans all public use of marijuana, and under federal law it is illegal to possess or use it on federal land.

Colorado

Only people 21 and over can legally possess or use marijuana. You can legally possess 1 ounce of marijuana in the state. The law bans all public use of marijuana. Colorado residents are able to cultivate up to 6 living plants.

Maine

Medical marijuana dispensaries are open for business, while recreational dispensaries have been continuously delayed by the Governor. Only people 21 and over can legally possess or use marijuana. You can legally possess 2.5 ounces of marijuana in the state. Marijuana may only be consumed on private property.

Massachusetts

Only people 21 and over can legally possess or use marijuana. You can legally possess 1 ounce of marijuana in the state. The law bans all public use of marijuana. Massachusetts residents are able to cultivate up to 6 living plants.

Michigan

Only people 21 and over can legally possess or use marijuana. You can legally possess 2.5 ounces of marijuana in the state. The law bans all public use of marijuana. Massachusetts residents are able to cultivate up to 12 living plants.

Nevada

Only people 21 and over can legally possess or use marijuana. You can legally possess 1 ounce of marijuana in the state. The law bans all public use of marijuana.

Oregon

Only people 21 and over can legally possess or use marijuana. You can legally possess 1 ounce of usable cannabis, 16 ounces of cannabis edibles in solid form, and 72 ounces in liquid form in the state. The law bans all public use of marijuana. Oregon residents are able to cultivate up to 4 living plants. Most cities ban recreational stores.

Vermont

Only people 21 and over can legally possess or use marijuana. You can legally possess 1 ounce of cannabis in the state. The law bans all public use of marijuana. Vermont residents are able to cultivate up to 4 living plants.

Washington

Only people 21 and over can legally possess or use marijuana. You can legally possess 1 ounce of usable cannabis, 16 ounces of cannabis edibles in solid form, and 72 ounces in liquid form in the state. The law bans all public use of marijuana. Only those with specific medical conditions with written recommendations are able to cultivate up to 15 living plants.