A. SIGNING BY PARTY OR ATTORNEY; CERTIFICATE Every pleading, motion, and other document of a party represented by an attorney shall be signed by at least one attorney of record who is an active member of the Oregon State Bar. A party who is not represented by an attorney shall sign the pleading, motion, or other document and state the address of the party. The signature for filings may be in the form approved for electronic filing in accordance with these rules or any other rule of court. Pleadings need not be verified or accompanied by an affidavit or declaration.
Rule 17.Signing of Pleadings, Motions and Other Papers; Sanctions
Current through June 1, 2026 · Last verified July 11, 2026
In one sentenceRule 17 requires every pleading, motion, and paper to be signed by an attorney or an unrepresented party, ties that signature to certifications that the filing isn’t improper and is factually and legally supported, and authorizes sanctions — subject to a 21-day safe harbor — for false certifications.
Full Text of Rule 17
B. PLEADINGS, MOTIONS AND OTHER PAPERS NOT SIGNED If a pleading, motion or other paper is not signed, it shall be stricken unless it is signed promptly after the omission is called to the attention of the pleader or movant.
C. CERTIFICATIONS TO COURT
(1) An attorney or party who signs, files or otherwise submits an argument in support of a pleading, motion or other document makes the certifications to the court identified in subsections (2) to (5) of this section, and further certifies that the certifications are based on the person's reasonable knowledge, information and belief, formed after the making of such inquiry as is reasonable under the circumstances.
(2) A party or attorney certifies that the pleading, motion or other document is not being presented for any improper purpose, such as to harass or to cause unnecessary delay or needless increase in the cost of litigation.
(3) An attorney certifies that the claims, defenses, and other legal positions taken in the pleading, motion or other document are warranted by existing law or by a nonfrivolous argument for the extension, modification or reversal of existing law or the establishment of new law.
(4) A party or attorney certifies that the allegations and other factual assertions in the pleading, motion or other document are supported by evidence. Any allegation or other factual assertion that the party or attorney does not wish to certify to be supported by evidence must be specifically identified. The attorney or party certifies that the attorney or party reasonably believes that an allegation or other factual assertion so identified will be supported by evidence after further investigation and discovery.
(5) The party or attorney certifies that any denials of factual assertion are supported by evidence. Any denial of factual assertion that the party or attorney does not wish to certify to be supported by evidence must be specifically identified. The attorney or party certifies that the attorney or party believes that a denial of a factual assertion so identified is reasonably based on a lack of information or belief.
D. SANCTIONS
(1) The court may impose sanctions against a person or party who is found to have made a false certification under section C of this rule, or who is found to be responsible for a false certification under section C of this rule. A sanction may be imposed under this section only after notice and an opportunity to be heard are provided to the party or attorney. A law firm is jointly liable for any sanction imposed against a partner, associate or employee of the firm, unless the court determines that joint liability would be unjust under the circumstances.
(2) Sanctions may be imposed under this section upon motion of a party or upon the court's own motion. If the court seeks to impose sanctions on its own motion, the court shall direct the party or attorney to appear before the court and show cause why the sanctions should not be imposed. The court may not issue an order to appear and show cause under this subsection at any time after the filing of a voluntary dismissal, compromise or settlement of the action with respect to the party or attorney against whom sanctions are sought to be imposed.
(3) A motion by a party to the proceeding for imposition of sanctions under this section must be made separately from other motions and pleadings, and must describe with specificity the alleged false certification. A motion for imposition of sanctions based on a false certification under subsection C(4) of this rule may not be filed until 120 days after the filing of a complaint if the alleged false certification is an allegation or other factual assertion in a complaint filed within 60 days of the running of the statute of limitations for a claim made in the complaint. Sanctions may not be imposed against a party until at least 21 days after the party is served with the motion in the manner provided by Rule 9. Notwithstanding any other provision of this section, the court may not impose sanctions against a party if, within 21 days after the motion is served on the party, the party amends or otherwise withdraws the pleading, motion, document or argument in a manner that corrects the false certification specified in the motion. If the party does not amend or otherwise withdraw the pleading, motion, document or argument but thereafter prevails on the motion, the court may order the moving party to pay to the prevailing party reasonable attorney fees incurred by the prevailing party by reason of the motion for sanctions.
(4) Sanctions under this section must be limited to amounts sufficient to reimburse the moving party for attorney fees and other expenses incurred by reason of the false certification, including reasonable attorney fees and expenses incurred by reason of the motion for sanctions, and upon clear and convincing evidence of wanton misconduct amounts sufficient to deter future false certification by the party or attorney and by other parties and attorneys. The sanction may include monetary penalties payable to the court. The sanction must include an order requiring payment of reasonable attorney fees and expenses incurred by the moving party by reason of the false certification.
(5) An order imposing sanctions under this section must specifically describe the false certification and the grounds for determining that the certification was false. The order must explain the grounds for the imposition of the specific sanction that is ordered.
Amendment History
[CCP 12/2/78; amended by 1979 c.284 § 14; § A amended by CCP 12/8/84; amended by CCP 12/13/86; amended by 1987 c.774 § 12; amended by 1995 c.618 § 4 9/9/95; D(4) amended by CCP 12/14/96; § A amended by 2003 c.194 § 7 eff. 1/1/04; §§ A, C, D amended by 2007 c.129 §§ 27 -29 eff. 1/1/08; § A amended by CCP 12/1/12 eff. 1/1/14]
Plain-English Summary
Rule 17 requires that every pleading, motion, and other document filed by a represented party be signed by at least one active member of the Oregon State Bar who is an attorney of record; an unrepresented party signs personally and must list an address. Electronic signatures in the form the court’s e-filing system accepts satisfy this requirement, and pleadings don’t need to be verified or backed by a separate affidavit or declaration. An unsigned filing gets stricken unless it’s signed promptly once the omission is pointed out.
Signing isn’t a formality — it’s a certification. By signing, filing, or arguing in support of a document, the attorney or party certifies, based on a reasonable inquiry, that the filing isn’t presented for an improper purpose such as harassment or delay; that an attorney’s legal positions are backed by existing law or by a nonfrivolous argument for extending, changing, or overturning it, or for establishing new law; that factual assertions are backed by evidence, or specifically flagged as expected to be supported after further investigation; and that denials of the other side’s factual assertions are grounded the same way.
Section D lets the court sanction a false certification, but only after notice and a chance to be heard, and a law firm shares liability for a partner’s, associate’s, or employee’s violation unless that would be unjust. A party’s sanctions motion has to stand alone — separate from any other motion — and describe the alleged false certification with specificity. It also has to clear two timing hurdles: sanctions can’t be imposed on a party until at least 21 days after the party is served with the motion, and the court must let the target correct the problem — by amending or withdrawing the offending filing within that 21-day window — without penalty. There’s a special rule for factual assertions in a complaint filed within 60 days of a statute of limitations deadline: a sanctions motion challenging those assertions under subsection C(4) can’t be filed until 120 days after the complaint itself was filed, giving the plaintiff time to develop support for claims filed under time pressure. Sanctions are capped at what’s needed to cover the moving party’s attorney fees and expenses caused by the false certification, though the court may add a deterrent penalty — payable to the court itself — on clear and convincing evidence of wanton misconduct. And if a party stands its ground and the sanctions motion fails, the court may make the party who filed the motion pay the winning side’s attorney fees for having to fight it. Rule 17 doesn’t reach discovery misconduct, which Rule 46 handles separately.
Frequently Asked Questions
Who has to sign a pleading or motion in Oregon?
If a party is represented, at least one attorney of record who is an active member of the Oregon State Bar must sign. An unrepresented party signs personally and must include an address. Electronic signatures in the form approved for e-filing are acceptable.
What happens if a pleading isn’t signed?
Rule 17 B says it must be stricken — unless it’s signed promptly after someone points out the omission to the party or attorney who filed it.
What am I certifying when I sign a motion or pleading in Oregon?
That it isn’t filed for an improper purpose like harassment or delay, that any legal positions are warranted by existing law or a nonfrivolous argument to change it, and that factual assertions and denials are supported by evidence — or specifically flagged as ones you reasonably expect to support after more investigation or discovery.
Is there a warning period before a court can sanction me for a false certification?
Yes. Sanctions can’t be imposed on a party until at least 21 days after the party is served with the sanctions motion, and the court can’t sanction the party at all if, within that 21-day window, the party amends or withdraws the filing to fix the problem.
Can I be sanctioned right after filing a complaint close to the statute of limitations?
Not right away. If a factual assertion in a complaint filed within 60 days of a statute of limitations deadline is challenged as a false certification under subsection C(4), the sanctions motion can’t be filed until 120 days after the complaint was filed — giving the plaintiff time to develop evidentiary support.
What can a court order as a sanction under Rule 17?
An amount limited to covering the moving party’s attorney fees and expenses caused by the false certification, plus — on clear and convincing evidence of wanton misconduct — an added amount to deter future violations, which may include a monetary penalty payable to the court.
Source & verification. The rule text is reproduced verbatim from the
official Oregon Rules of Civil Procedure (ORCP 17). Prescribed by the Council on Court Procedures (ORS 1.735), subject to amendment, repeal, or supplementation by the Oregon Legislative Assembly. The plain-English summary is original and written by us. Last verified July 11, 2026. ·
Official source
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