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Rule 81.Applicability of Rules

Part X. General Provisions · Last verified September 4, 2026

In one sentenceRule 81 marks the ruleset's outer limits, abolishes nine common-law writs, and supplies the translation table that makes the borrowed civil-rule language work in the Probate Court — Clerk means Register, complaint includes petition and libel.

Full Text of Rule 81

Text sizeJump to: (a) (b) (c) (d) (e) (f) (g) (h)

(a) Applicability in General. These rules apply to all civil proceedings in courts whose proceedings they govern except:
(1) proceedings pertaining to the writ of habeas corpus;
(2) Deleted;
(3) proceedings pertaining to the disciplining of an attorney;
(4) to (8) Deleted.
In respects not governed by statute, the practice in the enumerated proceedings shall follow the course of the common law, as near to these rules as may be, except that depositions shall not be taken, nor interrogatories served, save by order of the court on motion, with notice, for good cause shown.
(b) Writs Abolished. The following writs are abolished: audita querela; certiorari; entry; error; mandamus; prohibition; quo warranto; review; and scire facias. In any action seeking relief formerly obtainable under any such writ, procedure shall follow these rules. (Identical to Mass.R.Civ.P. 81(b))
(c) Deleted.
(d) Terminology in Statutes. In applying these rules to any proceedings to which they apply, the terminology of any statute which also applies shall, if inconsistent with these rules, be taken to mean the analogous device or procedure proper under these rules. (Identical to Mass.R.Civ.P. 81(d))
(e) Procedure Not Specifically Prescribed. When no procedure us specifically prescribed, the court shall proceed in any lawful manner not inconsistent with the Constitution of this Commonwealth, these rules, or any applicable statute. (Identical to Mass.R.Civ.P. 81(e))
(f) Deleted.
(g) Deleted.
(h) The following definitions for purposes of these rules apply to terms as appearing in Mass.R.Civ.P.:
(1) Clerk includes Register of Probate.
(2) Justice includes Judge of Probate Court.
(3) Chief Justice includes the Chief Judge of Probate Court.
(4) Superior Court includes Probate Court.
(5) The word "complaint" includes "petition" and "libel."
(6) The words "jury" and "verdict" and Rules applicable to jury cases apply only to courts having jurisdiction of jury trials.
(7) Third-party actions shall not be applicable to Domestic Relations matters.
(8) References in Mass.R.Civ.P. to actions including remanded cases and/or defenses and the capacity of parties not recognized in Domestic Relations practice as set out in Rule 1 shall be inapplicable to Domestic Relations cases.
(9) In Domestic Relations matters in the Probate Court forms, where prescribed, will be required in lieu of pleadings.
End

Comments

Rule 81(a), (c), (f) and (g) have been amended by deleting proceedings not applicable to Domestic Relations Courts. Rule 81(h) has been added to broaden the definitions of some terms as appearing in Mass.R.Civ.P.

Plain-English Summary

Rule 81 is where the ruleset explains itself. Subsection (h) has no civil counterpart and is the most useful paragraph in Part X.

Where the rules do not reach

These rules apply to all civil proceedings in the courts they govern except proceedings pertaining to the writ of habeas corpus and proceedings pertaining to the disciplining of an attorney. Clauses (2) and (4) through (8) are deleted, and the Comments record that (a), (c), (f) and (g) were amended by deleting proceedings not applicable to the domestic relations courts.

In the excepted proceedings, so far as not governed by statute, practice follows the course of the common law, as near to these rules as may be — with one express carve-out: depositions shall not be taken, nor interrogatories served, save by order of the court on motion, with notice, for good cause shown.

Writs abolished

Subsection (b) abolishes nine: audita querela, certiorari, entry, error, mandamus, prohibition, quo warranto, review, and scire facias. Where relief was formerly obtainable under any of them, procedure follows these rules. Rule 60(b) abolishes the parallel post-judgment writs and petitions to vacate judgment.

Two general provisions

Subsection (d) resolves a clash between a statute and these rules: the terminology of an applicable statute, if inconsistent with these rules, is taken to mean the analogous device or procedure proper under these rules. Subsection (e) fills gaps — where no procedure is specifically prescribed, the court proceeds in any lawful manner not inconsistent with the Massachusetts Constitution, these rules, or any applicable statute. The official text of (e) reads "When no procedure us specifically prescribed"; that is how it is printed, on mass.gov as well as in the compilation, and it is reproduced above as it appears.

The translation table

Subsection (h) defines nine terms for applying language borrowed from the civil rules:

  • Clerk includes Register of Probate;
  • Justice includes Judge of Probate Court;
  • Chief Justice includes the Chief Judge of Probate Court;
  • Superior Court includes Probate Court;
  • "complaint" includes "petition" and "libel";
  • "jury" and "verdict", and the rules applicable to jury cases, apply only to courts having jurisdiction of jury trials;
  • third-party actions are not applicable to domestic relations matters;
  • references to actions, remanded cases, defenses and party capacities not recognized in domestic relations practice as set out in Rule 1 are inapplicable;
  • in the Probate Court, forms, where prescribed, are required in lieu of pleadings.

Several of those explain things a reader meets earlier in the ruleset. Item (1) reconciles Rule 79, which speaks of the clerk, with Rule 77(b) and (d), which speak of the register. Item (6) explains why Rule 54(a) still mentions a general verdict when Rule 38 is deleted. Item (7) explains why Rule 7(a) lists third-party pleadings that Rule 14's deletion leaves without a home. And item (9) is the reason a Probate Court case often begins on a printed form rather than with a drafted complaint.

Frequently Asked Questions

Does 'clerk' mean the Register of Probate?

Yes. Rule 81(h)(1) provides that Clerk includes Register of Probate. Rule 81(h) also provides that Justice includes Judge of Probate Court, Chief Justice includes the Chief Judge of Probate Court, and Superior Court includes Probate Court.

Is a petition the same as a complaint?

Rule 81(h)(5) provides that the word 'complaint' includes 'petition' and 'libel'.

Are third-party claims available in a domestic relations case?

Rule 81(h)(7) provides that third-party actions shall not be applicable to Domestic Relations matters. Rule 14 is deleted from this ruleset.

Do I file a form or a complaint?

Rule 81(h)(9) provides that in Domestic Relations matters in the Probate Court, forms where prescribed will be required in lieu of pleadings. Rule 84, which would supply the forms, is reserved pro tem.

Which proceedings are outside these rules?

Rule 81(a) excepts proceedings pertaining to the writ of habeas corpus and proceedings pertaining to the disciplining of an attorney. In those, so far as not governed by statute, practice follows the course of the common law as near to these rules as may be — except that depositions may not be taken nor interrogatories served save by order of the court on motion, with notice, for good cause shown.

What happens if the rules do not cover a situation?

Rule 81(e) provides that where no procedure is specifically prescribed, the court shall proceed in any lawful manner not inconsistent with the Constitution of this Commonwealth, these rules, or any applicable statute. Rule 83 separately allows a court to make supplemental rules.

Source & verification. Rule text, Rule History and Comments reproduced verbatim from the Massachusetts Rules of Domestic Relations Procedure as published by the Massachusetts Trial Court Law Libraries, current through amendments effective May 1, 2010. Promulgated by the Supreme Judicial Court of Massachusetts. Last verified September 4, 2026. · Official text
Also known as: applicability of ruleswrits abolisheddefinitionsclerk includes registerpetition and libelthird-party actionshabeas corpusforms in lieu of pleadings