Certificate of Service in Oregon: Methods, Filing, and Deadlines

A certificate of service in Oregon is the document you attach to almost every court filing after the initial complaint to show that the other parties received a copy. Under Oregon Rule of Civil Procedure 9, that proof can take one of three forms: a certificate signed by an attorney, a declaration signed under penalty of perjury, or an affidavit sworn before a notary.¹ Which form you use depends on whether you have a lawyer, and the wrong choice can stall your filing or, in a serious case, expose you to a perjury charge.

One boundary worth flagging up front. This is the rule for documents filed during the case: motions, responses, notices, discovery-related filings, and the rest. The first delivery of the summons and complaint follows a different rule, ORCP 7, with its own certificate requirements.² Everything below is about Rule 9 practice.

Who Can Sign Which Form

The three forms under ORCP 9 C(1) are not interchangeable. The certificate option is reserved for attorneys. If you are representing yourself, you cannot sign a “certificate of service.” You need to use a declaration or an affidavit.

Attorneys generally use the certificate because it is the simplest of the three: a signature and a statement that service was made, with no notary involved. Self-represented parties usually use a declaration, which works the same way but must include language stating that the signer makes the statements under penalty of perjury. An affidavit does the same job but has to be sworn before a notary, so most people skip it when a declaration will do.

The other permitted form is a written acknowledgment signed by the person who received the documents. That is useful when the opposing party or their attorney is willing to sign a receipt, but you cannot count on it, and most filers rely on the certificate or declaration route.

What the Proof Must Contain

Whichever form you use, the document has to give the court enough information to confirm that every party got what they were supposed to get. At a minimum, it should include:

The case caption—court name, party names, and case number—matching the document being served.
The title of the document served, stated specifically (for example, “Defendant’s Response to Motion for Summary Judgment”).
The date service was made, meaning the date you handed off, mailed, transmitted, or filed the document.
The name and address (mailing or email) of each recipient. When a party has an attorney, service goes to the attorney rather than the party.¹
The method of service used for each recipient, because different methods complete on different days and can affect response deadlines.
Your signature and printed name. Attorneys sign as certifying counsel; anyone else signs as a declarant under penalty of perjury or as an affiant before a notary.

The proof can appear at the end of the document being served or as a separate attachment. Either satisfies the rule.¹

Methods of Service and What Each One Requires

ORCP 9 B recognizes several ways to serve documents after the case is underway. The method you pick changes when service is complete and what your proof needs to say.

Mail

First-class mail to the recipient’s last known address is the standard method. Service is complete on the date you put the envelope in the mail, not the date it arrives.¹ The proof should state the mailing date, the recipient, and the address used.

Hand Delivery

You can hand the document directly to the attorney or party, leave it at their office with whoever is apparently in charge, or, if there is no open office, leave it at their home with someone at least 14 years old who lives there.¹ Service is complete at the moment of delivery.

Email

Email service is available unless a court order says otherwise. If the recipient has consented to email service, service is complete when the email is transmitted. If they haven’t consented, service is complete only when you receive confirmation that the recipient got the message.¹ Your proof needs to state whether the recipient consented and, if not, how you confirmed receipt.

Fax

Fax service is available only when the party is represented by an attorney and that attorney’s fax equipment is operational at the time of service. The proof must include the printed confirmation page from the fax machine showing the transmission went through.¹

Electronic Service Through OJD eFile

Oregon’s electronic filing system handles filing and service in a single step. When you file through the system, it sends a notification with a link to the filed document to all registered parties. That counts as service, and the proof just needs to state that service was completed electronically through the system.³

How Service Method Affects Deadlines

The method you choose has a downstream effect on response times. ORCP 10 B adds three days to any deadline that starts running after service when service was made by mail, email, fax, or electronic service through OJD eFile.⁴ Hand delivery is the only method that does not trigger those extra days. That matters both to the serving party planning around a deadline and to the party who has to respond.

Filing the Proof With the Court

ORCP 9 C(1) requires filed documents to be filed within a reasonable time after service. The rule does not define “reasonable time,” so the safest practice is to file the document and its proof of service together, on the day of service if possible.¹

Oregon circuit courts and the Oregon Tax Court use OJD eFile for electronic filing. Active members of the Oregon State Bar are required to file electronically. Self-represented litigants are not required to use the system and can file paper documents at the courthouse clerk’s office, though they can register for an account and use OJD eFile if they prefer.³ If you use the system, save the filing confirmations it generates. Those notifications are useful evidence that service happened.

Discovery Documents You Serve but Do Not File

Not everything you serve on the other side goes into the court file. ORCP 9 D excludes deposition notices, discovery requests made under Rule 43, and the responses to those requests. You must serve them on the opposing party, but you do not file them with the clerk.¹ Those documents can still be used as exhibits later, but they stay outside the court file unless someone introduces them at a hearing or trial. Offers to allow judgment under Rule 54 E generally follow the same pattern.

What Happens When the Proof Is Defective or False

A defective proof of service is not a harmless slip. If the opposing party can show they never received a filing, the court may refuse to consider it until service is corrected. On a motion tied to a deadline, like summary judgment or a discovery motion, that delay can throw off the whole litigation schedule.

The stakes rise sharply when the problem is not carelessness but dishonesty. Every declaration and affidavit used as proof of service in Oregon is made under penalty of perjury. Oregon treats perjury as a Class C felony when a person knowingly makes a false statement in a declaration or sworn document regarding a material issue.⁵ Claiming you mailed a document on a date you did not, or listing an address you know is stale, falls within that definition. The service system runs on honest reporting, and courts treat false certificates accordingly.

1
Oregon Public Law. Oregon Rules of Civil Procedure Rule 9 – Service and Filing of Pleadings and Other Papers
2
Oregon Rules of Civil Procedure. Oregon Rules of Civil Procedure ORCP 7 – Summons
3
Oregon Judicial Department. Uniform Trial Court Rules Chapter 21 – Filing and Service by Electronic Means
4
Oregon Public Law. Oregon Rules of Civil Procedure Rule 10 – Time
5
Oregon Public Law. Oregon Revised Statutes 162.065 – Perjury