At any time before the court closes to deliberate on its finding on a charge, an accused who has pleaded not guilty to the charge may, with the leave of the judge advocate, withdraw his plea and substitute a plea of guilty.

Where an accused changes his plea under paragraph (1), the court shall proceed to sentencing of the accused.

At any time before the court closes to deliberate on its sentence on a charge, an accused who has pleaded guilty to the charge may, with the leave of the judge advocate, withdraw his plea and substitute a plea of not guilty.

Where an accused changes his plea under paragraph (3), the judge advocate shall discharge the court and direct the court administration officer to list the case for trial by a new court-martial.