A current PDF of the Uniform Code of Military Justice is available free from three official sources: the Joint Service Committee on Military Justice at jsc.defense.gov, the Office of the Law Revision Counsel at uscode.house.gov, and the U.S. Naval Academy at usna.edu. The JSC version is the one most practitioners use, because it comes packaged inside the Manual for Courts-Martial along with the procedural rules, evidence rules, and maximum punishment tables that make the statute usable. The House site publishes the underlying statutory text as codified at Title 10, Chapter 47 of the U.S. Code. The Naval Academy copy is the version many service members first encounter in training.
Which Edition You’re Reading
Two dates matter when you open a UCMJ PDF. The current Manual for Courts-Martial is dated January 2, 2024, and Executive Order 14130, signed December 20, 2024, amended portions of it. The statutory text posted at uscode.house.gov is the 2024 Main Edition, dated January 6, 2025. The JSC has also posted proposed 2025 amendments for public review, so anyone tracking pending changes should check that page rather than relying on a saved copy.
The code took effect in 1951 after President Harry S. Truman signed H.R. 4080 into law on May 5, 1950. Before then, each branch had its own disciplinary system, with the Army under the Articles of War and the Navy under its Articles for the Government of the Navy. Truman called the unified code an “outstanding example of unification in the Armed Forces.” Its stated purpose, set out in the preamble of the Manual, is “to promote justice, to assist in maintaining good order and discipline in the armed forces, to promote efficiency and effectiveness in the military establishment, and thereby to strengthen the national security of the United States.”
How the Code Is Organized
The UCMJ contains Articles 1 through 146a, grouped into twelve subchapters. Each article carries both a military article number and a Title 10 section number: Article 1 is codified at 10 U.S.C. § 801, Article 146a at § 946a.
- Subchapter I — General Provisions (Articles 1–6b): definitions, persons subject to the code, jurisdiction.
- Subchapter II — Apprehension and Restraint (Articles 7–14).
- Subchapter III — Non-Judicial Punishment (Article 15).
- Subchapter IV — Court-Martial Jurisdiction (Articles 16–21).
- Subchapter V — Composition of Courts-Martial (Articles 22–29).
- Subchapter VI — Pretrial Procedure (Articles 30–35).
- Subchapter VII — Trial Procedure (Articles 36–54).
- Subchapter VIII — Sentences (Articles 55–58b).
- Subchapter IX — Post-Trial Procedure and Review (Articles 59–76b).
- Subchapter X — Punitive Articles (Articles 77–134): the specific criminal offenses.
- Subchapter XI — Miscellaneous Provisions (Articles 135–140).
- Subchapter XII — Court of Appeals for the Armed Forces (Articles 141–146a).
Who Is Subject to the UCMJ
Article 2 defines the categories of persons who fall under military jurisdiction. Court-martial jurisdiction attaches by status: if you are in one of these categories, the code applies to you regardless of whether the offense had any connection to military duties.
- Active-duty members of every branch, including the Space Force, which was incorporated through amendments enacted in December 2023.
- Cadets, aviation cadets, and midshipmen at the service academies.
- Reserve and National Guard members while on active duty, during inactive-duty training, during travel to and from training, and during intervals between consecutive training sessions on the same day or on consecutive days.
- Retired members receiving pay. The Court of Appeals for the Armed Forces upheld that jurisdiction in United States v. Begani (2021), reasoning that retirees have not severed their relationship with the military and remain subject to recall.
- Prisoners of war in the custody of the armed forces.
- Civilians serving with or accompanying a force in the field during a declared war or contingency operation, and persons serving with or employed by the armed forces overseas.
One boundary is worth flagging because readers sometimes assume the opposite. The Supreme Court has struck down UCMJ jurisdiction over civilian dependents of military personnel and civilian employees of overseas forces in peacetime, in Reid v. Covert (1957) and McElroy v. United States (1960). Family members and peacetime overseas civilian employees are not subject to court-martial.
What the Code Criminalizes
Subchapter X, running from Article 77 through Article 134, contains the punitive articles. These split into two groups.
The military-specific offenses have no civilian counterpart. They include desertion (Article 85), absence without leave (Article 86), insubordinate conduct toward superiors (Article 91), failure to obey an order or regulation (Article 92), mutiny and sedition (Article 94), misbehavior before the enemy (Article 99), and conduct unbecoming an officer (Article 133). Article 88 separately prohibits commissioned officers from using “contemptuous words” against the President, Vice President, Congress, the Secretary of Defense, and other named senior civilian officials. Its purpose is to reinforce civilian control of the armed forces. Article 88 applies only to commissioned officers; enlisted members who engage in similar speech may be charged under Article 134.
The offenses with civilian parallels include murder (Article 118), manslaughter (Article 119), rape and sexual assault (Article 120), larceny (Article 121), robbery (Article 122), kidnapping (Article 125), and assault (Article 128). Congress has added offenses over time: wrongful distribution of intimate images (Article 117a) in 2017, and domestic violence (Article 128b) in 2018.
Article 134 is the general article. It reaches “all disorders and neglects to the prejudice of good order and discipline” and “all conduct of a nature to bring discredit upon the armed forces.” Through the Federal Assimilative Crimes Act, Article 134 can also incorporate state and federal criminal statutes that lack a direct UCMJ equivalent. A doctrine known as preemption bars using Article 134 to prosecute conduct already covered by a specific punitive article.
Articles 133 and 134 have faced repeated vagueness challenges. The Supreme Court rejected one in Parker v. Levy, 417 U.S. 733 (1974), holding that the military is a “specialized society separate from civilian society” and that Congress may use broader language than would be permissible in a civilian criminal code. That decision remains the controlling precedent.
Article 15 and the Three Courts-Martial
The code provides four enforcement mechanisms of increasing seriousness.
Non-Judicial Punishment
Article 15 lets a commander address minor misconduct without convening a court-martial. The commander decides both guilt and punishment. The process is called “nonjudicial punishment” generally, “Article 15” in the Army and Air Force, and “Captain’s Mast” in the Navy and Marine Corps.
Punishment ceilings depend on the rank of the commander and of the accused. A field-grade commander (major or above) handling a case against a junior enlisted member can impose up to 45 days of extra duty, 60 days of restriction, forfeiture of half of one month’s base pay for two months, and reduction in grade. A company-grade commander’s authority is more limited.
Before the hearing, the service member has the right to examine the evidence, present evidence and witnesses, and consult with counsel. Except for personnel attached to or embarked on a vessel, the member may refuse Article 15 and demand trial by court-martial, though doing so carries the risk of additional charges. An Article 15 finding is not a federal criminal conviction.
Summary Court-Martial
A single commissioned officer presides. It tries only enlisted personnel for noncapital offenses. Maximum punishment is one month of confinement, restriction for up to two months, and forfeiture of up to two-thirds of one month’s pay. There is no right to government-provided defense counsel, but the accused may hire a civilian attorney.
Special Court-Martial
A special court-martial has at least three members and a military judge, or a judge alone if the accused requests it. The Military Justice Act of 2016 set the panel size at four members and authorized a judge-alone variant that can impose up to six months of confinement but cannot adjudge a punitive discharge. It handles noncapital offenses for all service members.
General Court-Martial
The most serious forum. It has a military judge and at least five members, with eight required under post-2016 rules and twelve in capital cases. It may try any UCMJ offense, including capital crimes, and may impose any lawful punishment up to death. All sexual assault cases must be tried at this level.
In both special and general courts-martial, the accused receives military defense counsel at no cost and may also retain civilian counsel. Conviction requires a three-fourths vote of the panel. Capital cases require a unanimous verdict of all twelve members.
How Military Justice Differs From Civilian Criminal Law
Several features distinguish a court-martial from a civilian prosecution.
- Jurisdiction runs with status, not location. Military authority follows the person; civilian jurisdiction is usually tied to where the crime occurred.
- Article 31 replaces Miranda for military questioning. It requires that a service member be informed of the nature of the accusation, the right to remain silent, and that any statement may be used as evidence. Those rights are triggered whenever a person subject to the UCMJ questions a suspect in an official capacity, even without custodial conditions. Article 31 does not include a right to have an attorney present during questioning, which Miranda does.
- Panel members replace jurors. They are selected by the convening authority, though recent reforms require randomized selection to the maximum extent practicable.
- No nolo contendere or Alford pleas. The military does not allow a defendant to plead guilty while maintaining innocence. A military judge must conduct a “providence inquiry” to establish on the record that the accused genuinely believes they committed the offense.
- Article 32 replaces the grand jury. Before charges can be referred to a general court-martial, a preliminary hearing must be held at which the defense can attend, cross-examine witnesses, and present evidence.
- Article 37 prohibits unlawful command influence. Commanders and other superiors may not improperly influence court-martial proceedings by pressuring witnesses, stacking panels, or retaliating against defense counsel. If the defense raises evidence of such influence, the government must prove beyond a reasonable doubt that it did not occur or did not affect the proceedings. Remedies range from curative instructions to dismissal of charges.
Double jeopardy also works differently than many readers expect. Because the military and federal civilian courts derive from the same sovereign, the Double Jeopardy Clause bars successive prosecutions for the same conduct across those two systems. A state prosecution and a court-martial for the same conduct can both proceed, because states and the federal government are separate sovereigns.
Appeals
Every general or special court-martial conviction is reviewable by one of four intermediate Courts of Criminal Appeals: Army, Navy-Marine Corps, Air Force, and Coast Guard. Review is automatic when the sentence includes death, a punitive discharge, or confinement of two years or more. These courts review for legal error, factual sufficiency, and sentence appropriateness.
Above the service courts sits the U.S. Court of Appeals for the Armed Forces, an Article I court of five civilian judges. Under Article 67, CAAF must review all death-sentence cases and all cases certified by a Judge Advocate General. It may grant discretionary review on petition of the accused upon a showing of “good cause.” Its review is limited to questions of law.
The Supreme Court has discretionary jurisdiction to review CAAF decisions under 28 U.S.C. § 1259, but only where CAAF actually heard the appeal. If CAAF denies a petition for review, Article 67a bars Supreme Court review of that denial.
Recent Reforms Reflected in the Current PDF
If you compare an older UCMJ PDF against the 2024 edition, several structural changes account for most of the differences.
The Military Justice Act of 2016
Enacted as part of the FY2017 National Defense Authorization Act and effective January 1, 2019, this was the most substantial rewrite of the code in decades. It fixed panel sizes at four for special courts-martial, eight for general courts-martial, and twelve for capital cases; required a three-fourths vote to convict and to agree on a sentence, and a unanimous verdict in capital cases; and introduced “segmented sentencing,” under which the military judge issues a discrete sentence for each offense and specifies whether terms run consecutively or concurrently. The act expanded appellate rights, restricted convening authorities’ power to reduce sentences, and required most court-martial documents to be made publicly accessible.
The Office of Special Trial Counsel
The FY2022 NDAA created Offices of Special Trial Counsel within each military department, transferring the decision to prosecute serious crimes from the chain of command to independent military attorneys. Covered offenses include murder, sexual assault, kidnapping, domestic violence, and stalking. The offices became operational on December 28, 2023. Each is led by a general or flag officer who reports directly to the service secretary and holds exclusive authority to decide whether an offense is covered, to refer charges to court-martial, and to enter plea agreements. Commanders cannot override a special trial counsel’s decision to prosecute, and if the counsel declines to refer charges, the commander cannot send the case to a general or special court-martial.
As of January 1, 2025, substantiated formal complaints of sexual harassment were added to the list of covered offenses under Article 134. A December 2025 amendment (Public Law 119-60) updated the bar admission qualifications for officers serving as special trial counsel. The Army’s OSTC, headquartered at Fort Belvoir, Virginia, operates 28 field offices across eight circuits.
Sentencing by Judges and the Data Gap
The FY2022 NDAA also required military judges, rather than panels, to impose sentences in all non-capital special and general courts-martial, and created a Military Sentencing Parameters and Criteria Board to establish standardized confinement ranges. The 2024 Military Justice Review Panel report found that the Department of Defense has not yet built the centralized military justice database Article 140a requires. The panel recommended that Congress require a single, uniform database by January 1, 2026, with full operational capability by January 1, 2027, and that the department make court-martial records publicly accessible at the time of filing.
The Manual for Courts-Martial
The UCMJ is the statute. The Manual for Courts-Martial is the rulebook that implements it, and for most practical questions it is the document you actually need. Originally prescribed by Executive Order 12473 on April 13, 1984, the MCM is periodically updated by presidential executive order. It has five parts: the preamble, rules for courts-martial (procedural rules), military rules of evidence, descriptions of the punitive articles with elements, explanations, and maximum punishments, and rules for non-judicial punishment. The 2024 MCM, with amendments through Executive Order 14130 of December 20, 2024, is downloadable from the JSC site, along with proposed 2025 amendments open for public review.