License required.

RCW 18.29.011
in effect
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No person may practice as a dental hygienist in this state without having a license as such and, after the first year, an unexpired license renewal certificate. No person may practice as a dental hygienist in this state without having a license as such and, after the first year, an unexpired license renewal certificate.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=18.29&full=trueFetched: 6/29/2026

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