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Rule 3.Commencement of Action

Last amended November 1, 2023 · Last verified July 8, 2026

In one sentenceRule 3 lets a plaintiff start a Maine civil action either by serving the summons and complaint on the defendant first, or by filing the complaint with the court first, and sets the deadline for completing whichever step comes second.

Full Text of Rule 3

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Except as otherwise provided in these rules, a civil action is commenced in one of two ways:
(a) Service. A civil action may be commenced by the service of a summons, complaint, and notice regarding Electronic Service. If so commenced, the complaint must be filed with the court within 20 days after completion of service of the summons, complaint, and notice regarding Electronic Service.
(b) Filing. A civil action may be commenced by filing a complaint with the court. If so commenced, the return of service shall be filed with the court within 90 days after the filing of the complaint. If the complaint or the return of service is not timely filed, the action may be dismissed on motion and notice, and in such case the court may, in its discretion, if it shall be of the opinion that the action was vexatiously commenced, tax a reasonable attorney fee as costs in favor of the defendant, to be recovered of the plaintiff or the plaintiff’s attorney.

Advisory Committee’s Notes & Reporter’s Notes

Advisory Note – November 2023

Rule 3 is amended to change formatting for consistency with these rules.

Advisory Note– July 2018

The amendment to Rule 3, together with amendments to Rules 4, 5(b), 11, and 101 of the Maine Rules of Civil Procedure, are part of a package of simultaneous amendments to require represented parties to serve pleadings and other papers electronically upon one another or by delivering copies pursuant to Rule 5(b)(1) following service of the summons and complaint under Rule 4. Parties who are not represented by an attorney may opt in to Electronic Service.

A more detailed description of Electronic Service and the procedures for complying with its requirements is stated in the Advisory Note to Rule 5.

Advisory Committee’s Note

Rule 3 is amended to cure an omission which has existed since the original promulgation of the Rule. When a civil action is commenced by service, there is a 20-day time limit within which the complaint must be filed with the court. There is no comparable requirement that service be accomplished within a stated time when the action has been commenced by filing the complaint with the court. Although some leeway to account for difficulties in making service is desirable, there have been recent instances of actions filed against easily served entities such as hospitals or housing authorities in which service has not been accomplished for a year or more after the filing of the complaint. Such delay is not only inappropriate and potentially prejudicial to defense preparation. It is also inconsistent with other measures recently taken to expedite the pretrial proceedings. See 1988 Amendment of M.R. Civ. P. 16.

In 1983, as part of a major revision of service of process procedures under which service is to be made by the plaintiff rather than by the United States marshal, Congress added Rule 4(j) to the Federal Rules of Civil Procedure. This provision imposed a 120-day time limit on service after filing and plainly reflected the concern of Congress that, with the clerk no longer controlling service, some sanction was necessary to avoid delay and abuse. Before the 1983 amendment, under Federal Rule 4(a), there was practice of dismissal for untimely service if process was not served “forthwith” by the marshal under the clerk’s direction. Without even the support of “forthwith” in Maine Rule 4(b), Maine judges have been understandably reluctant to impose sanctions for untimely service, despite the encouragement of 1 Field, McKusick, and Wroth, Maine Civil Practice § 4-1 (2d ed. 1970). But see Order, Dalot v. Smith, No. CV-86-75 (Me. Super Ct., Franklin Co., 6-3-88) (Alexander, J.). [See Dalot v. Smith, 551 A.2d 448, 449 (Me. 1988).]

The present amendment addresses this situation by imposing a requirement that return of service must be filed within 90 days after the filing of the complaint with the sanction of dismissal and, in the event of a vexatious filing, imposition of attorney fees. Of course, in a case where a justifiable reason for further delay is present, the 90-day period may be enlarged by court order under M.R. Civ. P. 6(b). For similar rules in other states, see Vt. R. Civ. P. 3; Mass. R. Civ. P. 4(j) (eff. 7/1/88).

Advisory Committee’s Note — January 1, 1973

Plain-English Summary

Maine gives plaintiffs a choice most states do not: commence a case by service, or commence it by filing. Under the service route, the action begins the moment the summons, complaint, and notice regarding Electronic Service are served on the defendant, and the plaintiff then has 20 days to file the complaint with the court. Under the filing route, the action begins the moment the complaint is filed, and the plaintiff then has 90 days to file the return of service showing the defendant was served.

Miss the back-end deadline under the filing route, and the consequence is real: the court can dismiss the action on motion and notice, and if it finds the suit was brought vexatiously, it can tax a reasonable attorney fee as costs against the plaintiff or the plaintiff’s attorney. Recent amendments reflect Maine’s move toward Electronic Service — the notice regarding Electronic Service now travels with the summons and complaint as a matter of course, part of a coordinated package of amendments touching Rules 3, 4, 5, 11, and 101.

Frequently Asked Questions

What are the two ways to commence a civil action in Maine?

By serving the summons, complaint, and notice regarding Electronic Service on the defendant first (with 20 days to then file with the court), or by filing the complaint with the court first (with 90 days to then file the return of service).

What happens if the return of service is not filed within 90 days of filing the complaint?

The action may be dismissed on motion and notice, and if the court finds the case was commenced vexatiously, it may tax a reasonable attorney fee as costs against the plaintiff or the plaintiff’s attorney.

What is the notice regarding Electronic Service that now travels with the summons?

It is the document, added by amendments coordinated with Rules 4, 5, 11, and 101, that tells represented parties they are subject to Electronic Service and gives unrepresented parties the option to opt in to it.

Source & verification. The rule text and Advisory Committee’s Notes / Reporter’s Notes are reproduced verbatim from the official Maine Rules of Civil Procedure (Me. R. Civ. P. 3), prescribed by the Supreme Judicial Court of Maine (4 M.R.S. § 8, the Rules Enabling Act). The plain-English summary is original and written by us. Last verified July 8, 2026. · Official source
Also known as: commencing a lawsuit in Mainehow to start a casefiling a complaintcommencement of actionreturn of service deadline