Last verified: March 2026

Adult-Use Cannabis in Washington

Recreational cannabis is legal in Washington State for adults 21 years of age and older. Washington voters approved Initiative 502 (I-502) on November 6, 2012, with 55.7% of the vote, making the Evergreen State one of the first two states in the nation to legalize adult-use cannabis alongside Colorado. Possession became legal on December 6, 2012, and the first licensed retail stores opened on July 8, 2014.

All recreational cannabis purchases must be made at retail stores licensed by the Washington State Liquor and Cannabis Board (WSLCB). The state currently has approximately 460 licensed retailers statewide.

Initiative 502 was approved by 55.7% of Washington voters on November 6, 2012, establishing a system for licensing and regulating the production, processing, and sale of cannabis for adults 21 and older.

Washington State Liquor and Cannabis Board

How Legalization Happened

Washington's path to recreational cannabis was driven by a citizen-led ballot initiative:

• November 6, 2012: Voters approved Initiative 502 with 55.7% of the vote, legalizing adult-use cannabis.
• December 6, 2012: Possession of up to 1 ounce of cannabis became legal for adults 21+.
• July 8, 2014: The first WSLCB-licensed retail stores opened for recreational sales.
• 2015–2016: Medical and recreational regulatory frameworks were merged, with the WSLCB overseeing both systems.
• 2022: 2SHB 1210 replaced the term "marijuana" with "cannabis" throughout all state statutes.
• January 1, 2024: RCW 49.44.240 took effect, establishing employment protections for off-duty cannabis users.

Who Can Buy Recreational Cannabis

To legally purchase recreational cannabis in Washington, you must:

• Be at least 21 years old
• Present a valid, government-issued photo ID (driver's license, passport, military ID, or state ID from any state or country)
• Purchase only from a WSLCB-licensed retail store

There is no residency requirement. Out-of-state visitors can buy and consume cannabis under the same rules as Washington residents. For more visitor-specific information, see our Out-of-State Visitors guide.

Purchase & Possession Limits

Washington sets the following possession limits for recreational consumers under RCW 69.50:

Edible Limits

Washington regulates edible cannabis products with strict dosage caps:

• 10 mg of THC per serving (per individual piece or unit)
• 100 mg of THC per package (maximum)

All edible products sold at licensed retailers must be lab-tested, properly labeled with THC content per serving, and packaged in child-resistant containers.

For a full breakdown of how possession limits work, including medical patient amounts, visit our Possession Limits page.

Where You Can Buy: Licensed Retailers Only

Cannabis may only be purchased from retail stores licensed by the WSLCB. Buying from unlicensed sources is illegal and carries criminal penalties. Washington has approximately 460 licensed retailers statewide, of which 302 are medically endorsed and authorized to serve patients with medical authorizations.

What Is NOT Legal for Recreational Users

While buying and possessing cannabis is legal, several activities remain strictly prohibited:

The home cultivation ban is one of Washington's most distinctive features. Unlike most legal states, growing even a single plant as a recreational user is a Class C felony. Medical patients with a recognition card are the only exception.

Where You Can Consume

Washington has strict rules about where cannabis consumption is permitted:

Public consumption is a Class 3 civil infraction carrying approximately a $50 fine under RCW 69.50.445. The WA Clean Air Act also applies to cannabis smoke. For a detailed guide, see Where You Can Consume.

Cannabis Remains Federally Illegal

Cannabis is a Schedule I controlled substance under the federal Controlled Substances Act. Despite state legalization, possession, use, and distribution remain federal offenses. This applies on all federal land in Washington, including national parks, military installations, and federal buildings.

Washington State Liquor and Cannabis Board

Transporting cannabis across state lines is a federal crime, even between Washington and Oregon, where cannabis is also legal.

The WSLCB: Washington's Cannabis Regulator

The Washington State Liquor and Cannabis Board (WSLCB) is the primary regulator of both recreational and medical cannabis in Washington. The WSLCB is responsible for:

• Licensing all cannabis producers, processors, and retailers
• Enforcing compliance with RCW 69.50 and WAC 314-55
• Regulating cannabis advertising, packaging, and labeling
• Managing the seed-to-sale traceability system
• Consumer protection and complaint investigation

The Department of Health (DOH) manages the medical cannabis patient registry under RCW 69.51A.

Official Sources

• Washington State Liquor and Cannabis Board (WSLCB)
• Washington DOH — Medical Cannabis
• RCW 69.50 — Uniform Controlled Substances Act
• WAC 314-55 — Cannabis Regulations