# Washington — State pharmacy technician-to-pharmacist supervision ratios

For Washington, maximum ratio (tech:pharmacist) is 3:1; practice setting is institutional/hospital (internal use); 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):** 3:1
- **Practice setting:** institutional/hospital (internal use)
- **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

> in the preparation of medicine or other materials used by patients within the facility, one pharmacist supervising no more than three pharmacy technicians

## 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/).