Containers.

RCW 69.50.309
in effect
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A person to whom or for whose use any controlled substance has been prescribed, sold, or dispensed by a practitioner, and the owner of any animal for which such controlled substance has been prescribed, sold, or dispensed may lawfully possess it only in the container in which it was delivered to him or her by the person selling or dispensing the same. A person to whom or for whose use any controlled substance has been prescribed, sold, or dispensed by a practitioner, and the owner of any animal for which such controlled substance has been prescribed, sold, or dispensed may lawfully possess it only in the container in which it was delivered to him or her by the person selling or dispensing the same.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=69.50&full=trueFetched: 6/29/2026

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