2013 Amendments to the Manual for Courts-Martial, United States
May 21, 2013
Signed by: Barack Obama
Signed on: May 15, 2013
Published on: May 21, 2013
May 21, 2013
Signed by: Barack Obama
Signed on: May 15, 2013
Published on: May 21, 2013
Summary
Changes parts of the Manual for Courts-Martial, which contains the rules for military justice proceedings.
What problem does this solve?
The rules for military justice need periodic updates to stay current. This order makes specific changes to the Manual for Courts-Martial to update these rules.
What does this order do?
Amends Manual for Courts-Martial
Changes Parts III and IV of the Manual for Courts-Martial, United States, as detailed in an attached Annex.
No retroactive punishment
Ensures that no act can be punished under these new rules if it was not punishable at the time it was committed.
Protects ongoing proceedings
States that any legal actions, investigations, or trials that started before this order will continue under the old rules without being invalidated.
Who does this affect?
- U.S. military service members
- Military legal professionals
What is the real world impact?
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Keeps military law current
Updates the Manual for Courts-Martial to ensure the rules and procedures for military justice are up-to-date. This is a routine administrative action to maintain the legal framework of the armed forces.
When does this start?
The changes take effect on May 15, 2013, the date the order was signed.

