Wash. Rev. Code » Title 18 · Chapter 18.83
Revised Code of Washington

Wash. Rev. Code § 18.83.121 (2026)

Unprofessional conduct

✓ current as of May 2026
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In addition to those acts defined in chapter 18.130 RCW, the board may take disciplinary action under RCW 18.130.160 for the following reasons:
(1) Failing to maintain the confidentiality of information under RCW 18.83.110;
(2) Violating the ethical code developed by the board under RCW 18.83.050;
(3) Failing to inform prospective research subjects or their authorized representatives of the possible serious effects of participation in research; and failing to undertake reasonable efforts to remove possible harmful effects of participation;
(4) Practicing in an area of psychology for which the person is clearly untrained or incompetent;
(5) Failing to exercise appropriate supervision over persons who practice under the supervision of a psychologist;
(6) Using fraud or deceit in the procurement of the psychology license, or knowingly assisting another in the procurement of such a license through fraud or deceit;
(7) Failing to maintain professional liability insurance when required by the board;
(8) Violating any state statute or administrative rule specifically governing the practice of psychology; or
(9) Gross, wilful, or continued overcharging for professional services.
[ 1987 c 150 s 52.]

Notes:

Severability—1987 c 150: See RCW 18.122.901.
Notes of Decisions
Cited in 7 cases, 1994–2005 · leading case: Am. Home Assurance Co. v. Cohen, 881 P.2d 1001 (Wash. 1994).
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Am. Home Assurance Co. v. Cohen, 881 P.2d 1001 (Wash. 1994). · cites it 2× “RCW 18.83.121(2) provides that the examining board of psychology may take disciplinary action against a psychologist who violates the ethical code created by the examining board.”
Maun v. Dep't of Prof'l Reg., 701 N.E.2d 791 (Ill. App. Ct. 1998). “1(16) (1995) (“Gross and willful overcharging for professional services; including filing of false statements for collection of fees for which services are not rendered”); Wash. Rev. Code Ann. § 18.83.121 (9) (West 1989) (“Gross, wilful, or continued overcharging for…”
Deatherage v. Examining Bd. of Psychology, 948 P.2d 828 (Wash. 1997). “The language of these former statutes can now be found at RCW 18.83.121 and RCW 18.130.180. The disciplinary violations in this case took place in 1986.”
Deatherage v. Examining Bd. of Psychology, 948 P.2d 828 (Wash. 1997). “The language of these former statutes can now be found at RCW 18.83.121 and RCW 18.130.180. The disciplinary violations in this case took place in 1986.”
Client A v. Yoshinaka, 128 Wash. App. 833 (Wash. Ct. App. 2005). “RCW 18.83.121; RCW 18.130.160. Ch. 18.130 RCW.”
CLIENT a v. Yoshinaka, 116 P.3d 1081 (Wash. Ct. App. 2005). “[10] RCW 18.83.121; 18.130.160. [11] RCW 18.130.”
Maun v. Dep't of Prof'l Reg. (Ill. App. Ct. 1998). “1(16) (1995) ("Gross and willful overcharging for professional services; including filing of false statements for collection of fees for which services are not rendered"); Wash. Rev. Code Ann. §18.83.121 (9) (West 1989) ("Gross, wilful, or continued over­ charg­ing for…”
— Wash. Rev. Code § 18.83.121(2) — 1 case
Am. Home Assurance Co. v. Cohen, 881 P.2d 1001 (Wash. 1994). “RCW 18.83.121(2) provides that the examining board of psychology may take disciplinary action against a psychologist who violates the ethical code created by the examining board.”
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