The Rules for Courts-Martial: The Procedure Behind a Military Trial
On this page
The Rules for Courts-Martial are the procedural part of the Manual for Courts-Martial. They are cited as R.C.M. followed by a number, they are not statute, and they are written by the President under one article of the Uniform Code of Military Justice.
This page sets out where those rules come from, what the Code requires of them, and which procedural decisions the Code makes itself so that the rules cannot. It does not set out any rule, because we did not open the Manual. That is stated here, again at the section that would otherwise carry the rules, and again at the foot of the page.
It does not describe any procedure and it gives no advice.
The authority, and the ceiling on it
“(a) Pretrial, trial, and post-trial procedures, including modes of proof, for cases arising under this chapter triable in courts-martial, military commissions and other military tribunals, and procedures for courts of inquiry, may be prescribed by the President by regulations which shall, so far as he considers practicable, apply the principles of law and the rules of evidence generally recognized in the trial of criminal cases in the United States district courts, but which may not, except as provided in chapter 47A of this title, be contrary to or inconsistent with this chapter.”
Source: 10 U.S.C. 836 (Article 36), subsection (a).
Three consequences follow for the Rules for Courts-Martial specifically.
They cover the whole arc. “Pretrial, trial, and post-trial procedures” is the delegation, so a rule may govern anything from a preliminary hearing to post-trial motions.
They are benchmarked against federal civilian practice. The regulations “shall, so far as he considers practicable, apply the principles of law … generally recognized in the trial of criminal cases in the United States district courts.”
They lose to the statute. A rule “may not … be contrary to or inconsistent with this chapter.” Where a rule and an article appear to conflict, the article governs, and that is why the rest of this page is about the articles.
Subsection (b) requires the rules to be “uniform insofar as practicable” across the armed forces.
What the Code decides itself, so no rule can
This is the useful half of the page, and it is the part the statute supplies. Wherever the Code fixes a procedural point, a rule cannot move it.
The forums and their composition. Article 16 states the three kinds of court-martial and their makeup, including “a military judge and eight members” for a noncapital general court-martial and “a military judge and four members” for a special court-martial.
The impanelling numbers. Article 29(b)(2) requires the judge to impanel “12 members in a capital case” and “eight members in a noncapital case”, and (b)(3) “four members” in a special court-martial. The rules govern how impanelling is done; the Code fixes how many.
Who rules on what. Article 51(b): the military judge “shall rule upon all questions of law and all interlocutory questions”, and the ruling “is final and constitutes the ruling of the court.”
The vote to convict. Article 52(a)(3) requires “the concurrence of at least three-fourths of the members present when the vote is taken.”
The instructions before a vote. Article 51(c) requires the judge to instruct on the elements and to charge the members on the presumption of innocence and on reasonable doubt.
What happens at sessions without members. Article 39(a) lists them, including “holding the arraignment and receiving the pleas of the accused.”
The waiting period after service. Article 35(b) gives five days for a general court-martial and three for a special court-martial, at the accused’s objection, and removes the subsection “in time of war.”
Equal access to evidence. Article 46(a) gives trial counsel, defense counsel and the court-martial “equal opportunity to obtain witnesses and other evidence”, though it delegates the mechanics.
What the Code expressly leaves to the rules
The Code also names the places where a rule is required, and reading them shows the division from the other side.
Article 29(b)(1) opens “Under rules prescribed by the President” before requiring the judge to impanel after determination of challenges. Article 32(a)(1)(B) makes waiver of the preliminary hearing available “[u]nder regulations prescribed by the President”. Article 18(a) allows a general court-martial to adjudge any punishment not forbidden by the chapter “under such limitations as the President may prescribe”, and Articles 19 and 20 use the same formula. Article 56(a) puts every offense maximum in the President’s hands.
So the pattern is consistent: the Code fixes structure, thresholds and allocations of authority, and delegates procedure and punishment limits.
What this page cannot contain, and why
A trial proceeds in an order, and the order is written down: sessions, motions practice, voir dire, the examination of witnesses, objections, findings, and the sentencing proceeding. That sequence is what the rules in this title fix.
None of that is on this page. The Manual for Courts-Martial was not opened. Access was attempted on 19 September 2026 at jsc.defense.gov twice, at media.defense.gov and at tjaglcspublic.army.mil, and each returned an HTTP 403 refusal. No Rule for Courts-Martial is quoted, numbered or paraphrased anywhere on this page, because inventing the content of a rule would be worse than the gap.
The title of this page promises the procedure behind a military trial. What it delivers is the authority for that procedure and the statutory limits inside which it must sit. Anyone who needs an operative rule needs the Manual itself.
What this page does not decide
Any question of procedure. The rules are in a document that was not opened.
Whether a rule is consistent with the Code. Article 36(a) supplies the test; applying it requires both texts.
What a rule number refers to. R.C.M. numbering was not opened and no rule is cited here by number.
Where to go from here
The document these rules sit inside is covered in the Manual for Courts-Martial, and the evidentiary half of the Manual in the military rules of evidence. For the procedural points the Code fixes itself, in the order a trial meets them, see inside a court-martial trial.
Sources
- 10 U.S.C. 836 · Article 36, President may prescribe rules · the delegation, the district-court benchmark, the consistency ceiling and the uniformity requirement
- 10 U.S.C. 829 · Article 29, Assembly and impaneling · numbers fixed by statute, procedure left to rules
- 10 U.S.C. 851 · Article 51, Voting and rulings · the judge’s rulings and the required instructions
- 10 U.S.C. 852 · Article 52, Votes required for conviction · the three-fourths threshold
- 10 U.S.C. chapter 47 · the Code in full · Articles 16, 18, 19, 20, 32, 35, 39, 46 and 56, referred to above
What this page did not open, stated plainly because the title turns on it. The Manual for Courts-Martial, and therefore every Rule for Courts-Martial, was not opened. Four access routes were tried on 19 September 2026 and each was refused. No executive order amending the Manual was opened. No court decision was opened.
Checked on 19 September 2026, and checked for currency as well as for accuracy. Every statutory provision cited on this page was traced to the current United States Code: where a provision has not been amended since the 2023 edition, that edition’s text is the current text and its amendment record was read to confirm it; where a provision was amended by Pub. L. 118–159 (23 December 2024) or Pub. L. 119–60 (18 December 2025), the current text is quoted above and the amending Act is named beside it. The two Acts’ own texts were read to establish the complete list of provisions in this chapter that they changed. This was done through the Cornell mirror of the Code and through the Acts as published by the Government Publishing Office; the House preliminary Code could not be reached from here, so no third source confirms it. No independent expert review has taken place yet, and this page says so rather than implying one.