# Washington — State pharmacy technician-to-pharmacist supervision ratios For Washington, maximum ratio (tech:pharmacist) is 1:1; practice setting is community/retail; conditional increase is Higher ratio allowed with commission-approved pharmacy services plan; citation is RCW 18.64A.040, recorded from its source on 2026-08-16. - **State:** Washington _(our reading, not quoted from the source)_ - **Maximum ratio (tech:pharmacist):** 1:1 - **Practice setting:** community/retail - **Conditional increase:** Higher ratio allowed with commission-approved pharmacy services plan - **Citation:** RCW 18.64A.040 _(our reading, not quoted from the source)_ ## What the source says > no pharmacist may supervise more than one pharmacy technician ## Source - https://apps.leg.wa.gov/rcw/default.aspx?cite=18.64A.040 Last verified: 2026-08-16. Review by: 2027-08-16. Part of [State pharmacy technician-to-pharmacist supervision ratios](https://referencesource.org/pharmacy-technician-supervision-ratios/).