Washington cannabis regulations: new and proposed rules

36 notices on cannabis from Washington since 1 October 2026: final rule, proposed rule and notice. Rules first, newest first, each with its dates and a link to the state register.

  1. Final rule

    Rule requiring sanitary facility maintenance and proper storage of cleaning agents in cannabis production.

    Open in the state register

  2. Proposed rule

    Preproposal statement considering certification program for cannabis licensees participating in licensed medical cannabis activity.

    Open in the state register

  3. Proposed rule

    Proposed rule establishing medical cannabis licensee certification process for federal registration and banking purposes.

    Open in the state register

  4. Proposed rule

    Proposed rule addressing disproportionate cost impacts on small cannabis businesses and mitigation measures for implementation.

    Open in the state register

  5. Proposed rule

    Proposed rule aligning cannabis regulations with state law changes on terminology and product classifications.

    Open in the state register

  6. Proposed rule

    Proposed rule classifying medical grade high THC cannabis products limited to specific forms with potency and packaging limits for qualified patients.

    Open in the state register

  7. Proposed rule

    Proposed rule cost analysis determining that cannabis testing and packaging changes exceed minor cost threshold for businesses.

    Open in the state register

  8. Proposed rule

    Proposed rule defining high CBD cannabis product ratios, potency limits, labeling, and eligibility for adult and qualifying patient purchases.

    Open in the state register

  9. Proposed rule

    Proposed rule defining marijuana and cannabis products, concentrates, infused products, and THC concentration thresholds for licensing and retail sale.

    Open in the state register

  10. Proposed rule

    Proposed rule describing small business involvement in cannabis product standard development through workshops and stakeholder engagement.

    Open in the state register

  11. Proposed rule

    Proposed rule detailing costs for cannabis producers and laboratories to implement new testing and validation methods.

    Open in the state register

  12. Proposed rule

    Proposed rule detailing employee hygiene and sanitation requirements for cannabis production and handling.

    Open in the state register

  13. Proposed rule

    Proposed rule documenting small business participation in cannabis rulemaking workshops and feedback incorporation process.

    Open in the state register

  14. Proposed rule

    Proposed rule establishing cannabis product testing standards for aflatoxin, ochratoxin, terpenes, pesticides, and heavy metals.

    Open in the state register

  15. Proposed rule

    Proposed rule establishing medical grade general use cannabis product classification with labeling, packaging limits, and retail sale eligibility.

    Open in the state register

  16. Proposed rule

    Proposed rule establishing retail sales tax exemptions for compliant and medical grade cannabis products.

    Open in the state register

  17. Proposed rule

    Proposed rule expanding cannabis product labeling requirements and transparency measures including QR codes and COA access.

    Open in the state register

  18. Proposed rule

    Proposed rule mandating equipment sanitation and safe water supply for cannabis production facilities.

    Open in the state register

  19. Proposed rule

    Proposed rule requiring cannabis businesses to update terminology, labeling, and quality control standards.

    Open in the state register

  20. Proposed rule

    Proposed rule requiring certificate of analysis, harvest/production dates, and terpene concentration on cannabis product labels.

    Open in the state register

  21. Proposed rule

    Proposed rule requiring employee training on cannabis product requirements and medical authorization procedures.

    Open in the state register

  22. Proposed rule

    Proposed rule requiring pesticide screening using allowed pesticides only, with prohibited pesticide detection standards and failed batch destruction procedures.

    Open in the state register

  23. Proposed rule

    Proposed rule requiring terpene quantification and restricting terpene additions to cannabis products.

    Open in the state register

  24. Proposed rule

    Proposed rule requiring terpene testing as mandatory for medical cannabis designation with validation and verification requirements.

    Open in the state register

  25. Proposed rule

    Proposed rule restricting cannabis retailers and employees from diagnosing diseases or offering medical consultation.

    Open in the state register

  26. Proposed rule

    Proposed rule restricting medical-related language and claims on cannabis product labels.

    Open in the state register

  27. Proposed rule

    Proposed rule restricting pesticide use in cannabis production to manufacturer label requirements and allowed pesticides designated by department regulation.

    Open in the state register

  28. Proposed rule

    Proposed rule specifying pesticide, mycotoxin, residual solvent, and heavy metal testing requirements for cannabis products.

    Open in the state register

  29. Proposed rule

    Proposed rule updating quality assurance testing requirements for medical cannabis products, including contaminant screening.

    Open in the state register

  30. Notice

    Notice defining medical grade cannabis products, pesticide standards, packaging, production activities, and qualifying patient eligibility under Washington regulations.

    Open in the state register

  31. Notice

    Notice defining processor and producer licensing roles, product definitions, laboratory certification, and medical cannabis endorsement requirements.

    Open in the state register

  32. Notice

    Notice establishing high THC cannabis product classifications limited to capsules, tablets, tinctures, patches, and suppositories with milligram limits.

    Open in the state register

  33. Notice

    Notice establishing medical grade cannabis product logo requirements and label information disclosure standards.

    Open in the state register

  34. Notice

    Notice requiring pesticide and heavy metal screening for cannabis flowers, concentrates, and imported cannabinoids with sampling protocols and action levels.

    Open in the state register

  35. Notice

    Notice updating definitions for medical cannabis products, qualifying patients, designated providers, and cannabis product classifications and compliance standards.

    Open in the state register

  36. Notice

    Governor's explanation of denial of cannabis producer canopy expansion petition citing market stability concerns.

    Open in the state register

About these Washington notices

Which Washington notices are listed?

Notices, proposed, emergency and final rules on cannabis printed in the Washington register since 1 October 2026, newest first. Each links to the page it was printed on.

Is any of this reviewed by a lawyer?

No. The one-line description of each notice is drafted by a model and is not attorney-reviewed. Read the register page before relying on it.

Every cannabis rule change, with its date

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