When, after the expiry of a period of two months following its receipt by the Chairman of the National Commission, a claimant withdraws his appeal against the decision or opinion of the Departmental Commission, the National Commission may nevertheless, in accordance with the rules laid down in the first paragraph of Article R. 752-38, decide to rule on the draft submitted to it. It shall inform the parties of its decision at least ten days before the meeting at which the draft will be examined.