(a)Beginning of jurisdiction. Jurisdiction over the proceeding passes to the Board upon the filing of a reply brief under § 41.41 or the expiration of the time in which to file such a reply brief, whichever is earlier. (b)End of jurisdiction. The jurisdiction of the Board ends when: (1) The Director or the Board enters a remand order (see§§ 41.35(c) , 41.35(e) , and 41.50(a)(1) ), (2) The Board enters a final decision (see§ 41.2 ) and judicial review is sought or the time for seeking judicial review