(a) Any motion filed with the Board must provide a concise statement of the reasons supporting the motion.(b) When a person or party files a motion, other than a motion for an extension of time under § 4.405 , any party has 15 days after service of the motion to file a written response, unless a provision of this subpart or the Board by order provides otherwise.(c) The Board will rule on any motion as expeditiously as possible.(d) The requirements of § 4.401(d) apply to a motion. 75 FR 64665 , Oct. 20, 2010