Laws & Policies

Youth Marijuana Prevention

Retail marijuana use is legal for those ages 21 and over in Washington state and, therefore, legal in Spokane County. If a person chooses to use marijuana, it's important to know the laws.


Marijuana use is legal for those over 21 in Washington State, but there are rules about how much a person can possess at one time. There are also local, state and federal laws that pertain to marijuana.


Individuals who are 21 and over can possess:

  • 1 ounce of useable marijuana
  • 7 grams of marijuana concentrate or extracts for inhalation
  • 16 ounces of marijuana infused product in edible form
  • 72 ounces of marijuana infused product in liquid form
  • Marijuana related drug paraphernalia


Using marijuana and driving is dangerous because marijuana impacts alertness, concentration, coordination, slows your reaction time and makes it harder to monitor distance. Using marijuana before driving has been showed to double that chances of being in an accident and using marijuana in combination with alcohol or other substance increases that risk significantly.

In Washington, driving under the influence of marijuana is against the law. For those over age 21, there is a limit of 5 nanograms of THC per milliliter of blood (5ng/mL). How marijuana is processed in each person's body is individual and predicting the impact of use on driving and judgment can be difficult.

Marijuana use is illegal for anyone under the age of 21 and there is a zero tolerance limit for drivers under the age of 21.

Public Consumption

It is illegal to open or use any form of marijuana in view of the general public. If you are caught opening or using marijuana in a public place you could be subject to a class 3 civil infraction.

Providing or Selling to a Minor

Providing or selling marijuana to any person under the age of 21 is against the law and can result in up to 10 years in prison and up to a $10,000 fine.

Medical Marijuana

The U.S. Food and Drug Administration (FDA) has not approved marijuana as medicine, however, scientists studied the cannabinoid chemicals found in marijuana for therapeutic uses and authorized their use in two FDA-approved medications in pill form. The FDA has not approved any drugs containing or derived from the marijuana plant and has not found any such product to be safe and effective for any indication. Yet, many states, including Washington, have legalized medical marijuana for patients with certain medical conditions.

The Washington State Department of Health oversees the state’s Medical Marijuana program. Questions about the program, how to get an authorization card from a health care practitioner, or how to become a Medical Marijuana Consultant should be directed to:

Washington State Department of Health
Medical Marijuana Program

P.O. Box 47852
Olympia, WA 98504
Fax: 360.236.2901
Phone: 360.236.4819

Producers, Processors, and Retailers

The Washington State Liquor and Cannabis Board is responsible for the licensing and regulation of marijuana in the state, including in Spokane County. Questions about growing marijuana, cooperatives, licensing, regulations, and enforcement should be directed to:

Washington State Liquor and Cannabis Board
3000 Pacific Ave. SE
Olympia, WA 98504
Phone: 360.664.1600

Washington Poison Center

Statewide provider of immediate, free, and expert treatment advice and assistance on the telephone in case of exposure to poisonous, hazardous, or toxic substances. All calls are confidential. Call (800) 222-1222.

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Weed to Know

If you choose to use marijuana, it's important to know the laws, potential risks and how you can help prevent underage marijuana use.

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Marijuana Prevention for Health Care Providers

Working closely with health care providers as they are a trusted source for patients seeking information about tobacco, vaping or marijuana.

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