Recreational cannabis is rapidly changing in the US. As of 2018, 10 states and Washington, DC allow the recreational consumption of marijuana. What was once the pipe dream of casual consumers and devotees alike is becoming a reality faster than you can make a bad stoner joke, but every state is taking a different approach. Those differences can make knowing how, when, and where to light up difficult even when you make it to a safe state.

Whether you’re taking a cannabis tourism tour or coming home for the holidays and facing down your first weed-friendly family gathering, there are more than a few things you need to know before you go. These are the basic laws to get you started in every state with legal recreational marijuana.

Alaska

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Alaska was the third state to legalize recreational cannabis when the bill passed in 2014, and it’s had a relatively friendly relationship with weed for decades. In 1975, the state courts ruled that Alaska’s constitution allows private residents to possess up to four ounces in their homes. That ruling has been strengthened by a ballot measure, but Alaska’s rough terrain has made it hard to really get things going in towns accessible only by boat or plane, like Juneau, the capital. Dispensaries are common in Anchorage, yet few and far between when it comes to rural and hard-to-get-to towns.

Laws to know: People 21 and older can possess up to one ounce of cannabis and six marijuana plants (three flowering, three not). Adults can also transfer up to one ounce of cannabis to another adult. Any type of cannabis use is prohibited in public places including, but not limited to, parks, roads, sidewalks, and businesses. Possession is illegal in federally regulated airspace and waterways (so don’t try and take a puddle jumper to Juneau while carrying cannabis).

California

California was the first state to legalize medical marijuana in 1996, and one of the first to legalize recreational marijuana in 2016. When recreational cannabis sales finally started in California on the first day of 2018, it became the most populous state with legal marijuana dispensaries. It hasn’t exactly been a rush to get things going, however. Physical shops are still primarily located in big cities, but there are a number of delivery services for recreational marijuana if making the trek to a brick and mortar isn’t an option.

Laws to know: People 21 and older can buy up to one ounce of cannabis per day, or eight grams of cannabis in concentrates and edibles. Adults can also have up to six plants. It’s illegal for dispensaries to sell between 10:00 PM and 6:00 AM. It’s illegal to consume cannabis in any public areas, within 1,000 feet of a school or child daycare, and in any location where tobacco is prohibited. It’s also illegal to have cannabis in a car unless it’s in a child-proof container.

Colorado

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Colorado is in a league of its own when it comes to recreational cannabis. It was the first state, along with Washington, to legalize recreational weed in 2012. Colorado was a couple steps ahead then, and it still is today. There are now more recreational marijuana shops in Colorado than there are McDonald’s and Starbucks in the state combined.

Laws to know: People 21 and older are allowed to possess one ounce of cannabis, which applies to both edibles and flower. You can grow up to six plants at home as long as only three plants are flowering at one time. You can’t legally consume cannabis openly or publicly, whether that be parks, transportation spots, or amusement venues.

Illinois

On June 25, 2019, Governor J. B. Pritzker signed recreational cannabis into Illinois’ law books. Pritzker promised revised marijuana laws on the campaign trail and followed through with helping those impacted by previous draconian laws. Nearly 800,000 people who have criminal records for purchasing or being caught with one ounce (30 grams) or less of cannabis are eligible to have their records expunged. Additionally, minorities will receive preference for cannabis vendor licenses, and 25 percent of tax revenue from sales will help rebuild poor communities. Illinois is the 11th state to legalize recreational cannabis and the first to have a cannabis marketplace created by state legislators. Licensed and established recreational dispensaries can begin selling on January 1, 2020.

Laws to know: Cannabis purchase and possession is restricted to people 21 and over. The measure allows for residents to purchase and possess up to one ounce of cannabis at a time, and for travelers to purchase and possess up to 15 grams.

Maine

Maine has some of the laxest laws on possession limits of legal cannabis in the US. The vote to legalize happened in 2016, and in February 2018, recreational dispensaries started opening. For Maine residents, the rules are even more open.

Laws to know: People 21 and older can possess up to two and a half ounces of marijuana, but no more than five grams can be from concentrate. You’re also allowed to have six flowering marijuana plants, 12 non-flowering plants, and an unlimited number of seedlings as long as it’s not grown in an area visible to the public. It’s illegal to consume cannabis in public or in vehicles.

Massachusetts

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Massachusetts legalized recreational cannabis in 2016, and the first stores are opening in late 2018. The number is expected to grow over the next couple years as more licenses are given.

Laws to know: People 21 and older can have up to one ounce on them and up to 10 ounces in their home. Also allowed is having six plants per adult. It’s illegal to consume cannabis in public or in vehicles, and it must be stored in a closed container while driving.

Michigan

Michigan legalized cannabis in the 2018 election, and legality laws went into effect on December 6, 2018. Marijuana won’t be commercially available until around 2020.

Laws to know: People 21 and over are allowed to possess up to two and a half ounces of marijuana or 15 grams of cannabis concentrate and 12 plants for personal consumption. There’s a 10 ounce limit for marijuana at home. It’s illegal to consume marijuana in public spaces.

Nevada

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Nevada is known for welcoming vices that are taboo elsewhere, and in 2017, it added cannabis to that list. But it’s not as easy to consume marijuana as it is to throw down some money on a hand of blackjack.

Laws to know: People 21 and older can possess up to one ounce of cannabis and up to an eighth of an ounce of concentrated marijuana in the form of hash or edibles. Adults can also grow six plants at home. You can’t consume marijuana in public places, including casinos, or in moving vehicles.

Oregon

Sales of recreational marijuana officially started in Oregon on July 1st, 2015, after a vote legalized cannabis in 2014. The state was well prepared as it already grew a large amount of medical marijuana both indoors and outdoors. Now, growers are facing an oversupply, which has pushed the cost of marijuana in the state to extreme lows like $4 a gram.

Laws to know: People over 21 are allowed to have up to one ounce of smokable cannabis on them when outside of their home, and eight ounces inside their home. When it comes to edibles and other products derived from cannabis, adults are allowed 16 ounces in solid form and 72 ounces in liquid form. Additionally, people can have up to four marijuana plants per household. It’s illegal to smoke in a public place, which includes, but is not limited to, bar patios, parks, hallways, and outdoor areas of hotels.

Vermont

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In July of 2018, Vermont became the first state to legalize recreational cannabis through the state’s legislative body rather than putting the onus for change directly on voters in a ballot initiative. However, the law doesn’t allow for businesses to sell recreational marijuana, so you still need to know somebody to get your hands on some.

Laws to know: It’s legal for people 21 and older to possess up to one ounce of marijuana and to own two mature and four immature plants. You’re not allowed to smoke in a car, on Lake Champlain (it’s federal waters), or in any public place. Selling marijuana is still illegal.

Washington

Washington joined Colorado as the first two states to legalize recreational cannabis, and it’s proven to be a popular decision. More than $1.3 billion in cannabis and cannabis products were sold in Washington state alone in 2017. While it’s easier to acquire cannabis the more west you go, there are dispensaries in the majority of regions in the state.

Laws to know: People over 21 can purchase up to one ounce of smokable cannabis, 16 ounces of edibles in solid form, 72 ounces in liquid form, and seven grams of concentrates. It’s illegal to consume cannabis in the view of the public, which essentially restricts smoking to private residences.

Washington, DC

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The federal government isn’t all that fond of cannabis, but that didn’t stop the nation’s capital from enacting pro-marijuana legislation in 2014. Unlike most of the states with legal recreational cannabis, however, DC has tight restrictions on acquiring weed.

Laws to know: People 21 and over can possess up to two ounces of marijuana and gift one ounce or less to another person 21 or over. “Gift” is the key word, because it’s still illegal for anyone — shop or person — to sell cannabis in DC. It’s illegal to consume cannabis in public places, and that goes for city-owned and federally owned land. Nearly 30 percent of DC is federal land, and you can be prosecuted on a federal level if caught consuming marijuana on it.