Washington Dropped Its Certified Mail Rule for Eviction Notices: What Still Has to Be Proven

October 8, 2026

Property compliance

Washington changed the mailing rule for notices governed by RCW 59.12.040. House Bill 2664, Chapter 144, Laws of 2026, removed the prior requirement to send a mailed copy by certified mail from within Washington state.

The amendment took effect June 11, 2026. The statute still requires property teams to establish proper service, preserve mailing evidence, and calculate the statutory timing period correctly.

general compliance information, not legal advice

What Washington House Bill 2664 changed

House Bill 2664 amended RCW 59.12.040, which governs service of unlawful detainer notices and other notices served under chapter 59.12 RCW.

The bill:

• Passed the Washington House on February 10, 2026, by a vote of 96-0.
• Passed the Washington Senate on March 5, 2026, by a vote of 48-0.
• Was approved by Governor Bob Ferguson on March 23, 2026.
• Was filed with the Secretary of State on March 23, 2026.
• Became effective June 11, 2026.

The Washington Legislature bill summary for HB 2664 identifies the measure as Chapter 144, Laws of 2026, and provides the legislative history.

The amendment struck language requiring a mailed copy to be sent by certified mail posted from within Washington state to the recipient’s last known address. The current statute instead refers to sending a copy through the mail, addressed to the person entitled to receive it at the person’s place of residence.

This change affects certified mail requirements. It does not eliminate the need to prove that the statutory notice requirements were followed.

The current service methods under RCW 59.12.040

The current text of RCW 59.12.040 provides several service methods.

Personal delivery

A copy may be delivered personally to the person entitled to receive it.

Delivery at the premises and mailing

If the person is absent from the premises unlawfully held, service may be completed by:

1. Leaving a copy at the premises with a person of suitable age and discretion.
2. Sending a copy through the mail addressed to the person at the person’s place of residence.

Posting and mailing when residence information is unavailable

If the tenant or unlawful holder’s residence is not known, or a person of suitable age and discretion cannot be found at the premises, service may involve:

1. Affixing a copy in a conspicuous place on the premises.
2. Delivering a copy to a person residing there if one can be found.
3. Sending a copy through the mail addressed to the tenant or unlawful occupant at the premises.

Service on corporations

For a corporation, service may be made by delivering a copy to an officer, agent, or person in charge of the business at the premises.

If no such person can be found, the statute permits:

1. Affixing a copy in a conspicuous place on the premises.
2. Sending a copy through the mail addressed to the corporation at the location of the premises.

The applicable method depends on the facts of the service event. A property team should not treat ordinary mailing as a substitute for other required steps when the statute requires personal delivery, leaving a copy, posting, or delivery to a resident.

The certified mail mandate was removed, but the mailing clock remains

The practical consequence of the amendment is specific.

Washington no longer compels certified mail under RCW 59.12.040. However, the statute still states that when a copy is sent through the mail, service is deemed complete when the copy is deposited in the United States mail from within Washington state, properly addressed, with postage prepaid.

The statute also provides that five additional days must be allowed before the commencement of an action based on the notice when service is made by mail.

The relevant event is therefore deposit in the mail. The delivery date does not replace the statutory completion rule. A delivery scan, signature, or return receipt can add evidence, but the statute identifies deposit as the point at which service is deemed complete.

Property compliance procedures should capture:

• The date the notice was deposited in the mail.
• Confirmation that the mailing occurred from within Washington state.
• The recipient name and address.
• Postage payment.
• The final notice version.
• The date stated for vacating or complying.
• The additional five-day period when applicable.
• The person responsible for the mailing.
• Evidence connecting the mail record to the notice.

These controls support certified mail compliance when certified mail is selected, but they also support first-class mailing evidence when certified mail is not used.

What must be proven about the notice

Removing a mailing method does not remove the underlying proof obligation.

A termination notice served under RCW 59.12.040 must specify the date by which the recipient must vacate or, if applicable, comply. The retained record should show the exact document that was issued and the date stated in that document.

A complete proof of notice record should establish:

• The statutory authority for the notice.
• The identity of the person or entity to be served.
• The address used for mailing.
• The service method selected.
• The required personal delivery, leaving, posting, or resident-delivery steps.
• The date and location of mailing.
• Proper addressing and prepaid postage.
• The final notice content.
• The deadline to vacate or comply.
• The applicable five-day mailing period.
• The identity of the person who performed service.
• Any return, refusal, delivery, or other postal event.

A mailing receipt alone does not prove every part of the notice process. It can show that a mailpiece entered the postal system. It does not independently establish that the notice contained the required language, that the correct recipient was selected, or that other service steps were completed.

The distinction between mailing evidence and complete notice evidence is addressed in Proof of Mailing vs. Proof of Notice.

The affidavit remains the formal proof mechanism

RCW 59.12.040 states that proof of service may be made by the affidavit of the person who performed the service, in the same manner and with the same effect as proof of service of a summons in civil actions.

This provision makes the service affidavit a central part of the evidence package.

The affidavit should be supported by the underlying operational records. Depending on the service method, those records can include:

• A copy of the signed or issued notice.
• A service worksheet.
• The recipient and address record.
• A mailing receipt or postal acceptance record.
• A description of where a copy was left or posted.
• The identity of any person who received a copy at the premises.
• The mailing date and location.
• The responsible server’s name and role.
• Any delivery, return, refusal, or attempted-delivery record.

The affidavit should accurately describe what occurred. A postal receipt should not be treated as proof of personal delivery, posting, or resident delivery when those events are not documented.

Is certified mail still useful?

Certified mail is no longer mandatory under the amended RCW 59.12.040 language. It remains available as an evidence option.

A property manager may select certified mail when the organization wants more than first-class mailing evidence. Certified mail records can provide a mailing receipt, article identifier, processing history, delivery activity, attempted delivery information, and, when selected, return receipt information.

These records can help connect the notice to:

• The date of postal acceptance.
• The address used.
• The delivery or attempted-delivery outcome.
• The identity of the article.
• The retained copy of the notice.

Organizations that choose sending certified mail should still preserve the final notice, service affidavit, address verification, and deadline calculation. Certified mail does not replace the need to prove notice content or other statutory service steps.

The correct question is not whether certified mail is always required. The correct question is which evidence package best establishes compliance with the applicable statute, local rules, court requirements, and facts of the matter.

A practical Washington mailing record

A standardized mailing record can reduce gaps across property portfolios.

Before mailing

Establish the governing statute, identify the recipient, verify the address, approve the final notice, and calculate the required vacate or compliance date.

At mailing

Record the date of deposit, the Washington mailing location, the address, postage, mailing method, and person responsible for the mailing.

After mailing

Retain the postal acceptance record, delivery or return information, the final notice, and the completed service affidavit.

Before filing or further action

Confirm that the five additional days required for service by mail have been allowed. Confirm that the notice specifies the required date to vacate or comply. Confirm that the evidence package supports every service method used.

This sequence provides a practical control for property teams managing statutory notice requirements and notice requirements by state.

What property compliance teams should update

Current procedures should not continue to describe certified mail as mandatory under RCW 59.12.040 unless another applicable authority requires it.

Policy and system updates should:

• Replace outdated certified-mail-only instructions.
• Identify the permitted service methods.
• Preserve the mailing deposit date.
• Capture the Washington mailing location.
• Require proper addressing and prepaid postage.
• Retain the notice version with the mailing record.
• Generate or preserve an affidavit of service.
• Apply the five-day period when service is by mail.
• Escalate questions involving local rules or court requirements.
• Review forms and checklists against the current statute.

The statutory notice requirements guide provides related guidance for identifying the governing requirement before a notice is issued.

National Compliance Registry provides compliance registration and records management services that support controlled records, evidence retention, and reviewable compliance workflows.

Final distinction

Washington’s amendment removed a certified mail mandate for notices governed by RCW 59.12.040. It did not remove the need to prove service.

The statute still focuses on:

• The permitted service method.
• Proper mailing from within Washington state.
• Correct addressing and prepaid postage.
• Deposit in the mail as the deemed-completion event.
• Five additional days before an action based on mailed service.
• The required vacate or compliance date.
• Proof through an affidavit of service.

Certified mail remains an available way to document deposit and delivery when a party wants more than first-class mailing evidence. The most defensible record links the final notice, service method, mailing event, affidavit, deadline calculation, and any postal outcome into one accessible file.

The statute text cited is the version in effect as amended by 2026 c 144. Readers must confirm the current statute, local rules, and any court requirements for the specific matter.