(b) Provided a petition for grant of review or certificate for review has not been filed with the United States Court of Appeals for the Armed Forces, or a record of trial for review under Article 67(b) or writ appeal has not been received by the United States Court of Appeals for the Armed Forces, the Court may, in its discretion, reconsider its decision or order in any case upon motion filed either:

1. (1) By appellate defense counsel within 30 days after receipt by counsel, or by the appellant if the appellant is not represented by counsel, of a decision or order, or
2. (2) By appellate government counsel within 30 days after the decision or order is received by counsel.