Washington § 85.08.450 - Regularity and validity of proceedings conclusive.

Full text of Washington Revised Code of Washington § 85.08.450 — Regularity and validity of proceedings conclusive., with citation guidance and answers to common questions.

§ 85.08.450. Regularity and validity of proceedings conclusive.

Whenever any schedule of apportionment of any drainage or diking improvement district shall have been confirmed, and the assessment therefor shall have been levied, by the board of county commissioners, as provided by RCW 85.08.400 through 85.08.430, the regularity, validity and correctness of the proceedings relating to such improvement, and to the assessment therefor, including the action of the board of county commissioners upon such assessment roll and the confirmation thereof, shall be conclusive in all things upon all parties, and cannot in any manner be contested or questioned in any proceeding whatsoever by any person not filing written objections to such roll in the manner and within the time provided in RCW 85.08.400 through 85.08.430, and not appealing from the action of the board of county commissioners in confirming such assessment roll in the manner and within the time in this chapter provided. No proceeding of any kind shall be commenced or prosecuted for the purpose of defeating or contesting any such assessment, or the sale of any property to pay such assessment, or any certificate of delinquency issued therefor, or the foreclosure of any lien issued therefor: PROVIDED, That this section shall not be construed as prohibiting the bringing of injunction proceedings to prevent the sale of any real estate upon the grounds:
(1) That the property about to be sold does not appear upon the assessment roll, or
(2) That said assessment has been paid.
[ 1921 c 157 s 2; RRS s 4437.]

Source: official Washington text · Last verified 2026-08-27

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Frequently Asked Questions About Washington § 85.08.450

What does Revised Code of Washington § 85.08.450 cover?

Section 85.08.450 ("Regularity and validity of proceedings conclusive.") is part of the Revised Code of Washington, the codified statutory law of Washington. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Washington § 85.08.450?

A common citation format is "Revised Code of Washington § 85.08.450" (Washington). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Washington law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Washington official source linked on this page or consult a licensed Washington attorney.

How does Washington § 85.08.450 apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Washington can advise on how this section applies to you. Contact your state or local bar association for a referral.

Sources & Verification

Not legal advice. Verify against the official source and consult a licensed attorney in Washington.