Revised Code of Washington

Wash. Rev. Code § 5.28.060 (2026)

Affirmation equivalent to oath

✓ current as of May 2026
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Whenever an oath is required, an affirmation, as prescribed in RCW 5.28.050 is to be deemed equivalent thereto, and a false affirmation is to be deemed perjury, equally with a false oath.
[2 H. C. s1698; 1869 p 379 s 6; RRS s 1269.]

Notes:

Perjury: Chapter 9A.72 RCW.
Notes of Decisions
Cited in 3 cases, 1978–1996 · leading case: Stiley v. Block, 925 P.2d 194 (Wash. 1996).
Stiley v. Block, 925 P.2d 194 (Wash. 1996). · cites it 7× “QUESTIONS PRESENTED The questions presented in this case are: (1) whether the trial court erred in instructing the jury on the duty Respondent Block owed to Petitioner Stiley; (2) whether the trial court erred in not instructing the jury on contributory negligence; (3) whether…”
Stiley v. Block, 925 P.2d 194 (Wash. 1996). · cites it 7× “QUESTIONS PRESENTED The questions presented in this case are: (1) whether the trial court erred in instructing the jury on the duty Respondent Block owed to Petitioner Stiley; (2) whether the trial court erred in not instructing the jury on contributory negligence; (3) whether…”
In Re Est. of Nikiporez, 574 P.2d 1204 (Wash. Ct. App. 1978). “1 RCW 5.28.060 provides in pertinent part, "Whenever an oath is required, an affirmation, as prescribed in RCW 5.”
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