Whether you're a resident of the state of Washington or you're visiting the beautiful Pacific Northwest, you might be wondering how old you have to be to smoke weed in the Evergreen State. In November of 2012, Washington residents voted to legalize the use of recreational cannabis use and allow adults who are at least 21 years old to buy marijuana products as they wish within the state's borders. However, this allowance does not apply to adults in the 18-21 age group; they can't smoke weed recreationally and can only get medical cannabis through their legally recognized caregiver.

The passage of Initiative 502 doesn't mean that residents and tourists who are at least 21 years of age can smoke weed (or consume marijuana in other ways way) wherever they please while in Washington. Adults can consume cannabis on private property, but it is still illegal to consume marijuana while you're in public places (or in view of the public) or on federal lands. State legislators are exploring the possibility of allowing private cannabis clubs where adults could smoke weed and consume marijuana openly.

There are other regulations on cannabis use in the state of Washington. Adults at least 21 years old can only purchase up to one ounce of marijuana flowers, 16 ounces of cannabis-infused food products, 72 ounces of cannabis-infused liquid, and 7 grams of concentrated extracts at a time from state-licensed dispensaries. Adults are not allowed to sell cannabis products they buy to anyone else, though they can give marijuana away to others at least 21 years old. It's also illegal for adults to smoke weed or consume cannabis while in a car or driving; the legal limit in Washington is 5 nonograms of active THC (tetrahydrocannabinol) per milliliter in the bloodstream.

In ending, adults who are of legal age to use cannabis must remember that it’s still illegal at the federal level to take marijuana across state lines and if you are caught doing so you may face significant legal penalties such as hefty fines or possibly jail time. You can learn more about the state's laws about smoking weed and cannabis in general by visiting the Washington State Liquor and Cannabis Board website.