Service members who negotiate a plea agreement often worry about what happens if the commander who signed it leaves. Commanders rotate frequently, and a permanent change of station, a relief, or a routine reassignment can put a different officer in the convening authority chair partway through a case. The natural fear is that a new convening authority might disown the deal. Under the modern military justice system, that fear is largely unfounded, but understanding why requires looking at how plea agreements actually bind the parties today.
How a plea agreement becomes binding
In the current framework, a plea agreement is authorized by Article 53a of the Uniform Code of Military Justice. The decisive event is acceptance by the military judge. Once a military judge of a general or special court-martial accepts the plea agreement, the agreement binds the parties and the court-martial. That binding effect attaches to the agreement itself and to the institution of the court-martial, not to the individual officer who happened to sign it.
This matters for the question of a change in command. Because the obligation runs to the parties and the court, a successor convening authority steps into the same binding agreement that the predecessor entered. The agreement does not dissolve simply because a new officer assumes the role. The government, as a party, remains bound, and the identity of the human being exercising convening authority does not change that.
The 2019 shift away from convening-authority sentence approval
The phrase “before sentence approval” in the question reflects an older system, and the answer is shaped by a major change. The Military Justice Act of 2016, effective January 1, 2019, transformed how sentences are imposed and how plea agreements operate.
Before that change, the convening authority approved the sentence and could grant clemency, so the approval step was a genuine checkpoint where a plea bargain’s promised sentence limit was effectuated. Under the current system, that is no longer how it works. When a plea agreement limits the punishment, the military judge must sentence the accused in accordance with the agreement. The accused receives the benefit of the agreed limitations automatically upon the judge’s acceptance, without the convening authority needing to take action to approve a sentence to make the deal effective.
In other words, there is generally no separate convening-authority “sentence approval” step in the old sense for the new system to hinge on. The convening …