29 C.F.R. § 4003.58
Powers of the Appeals Board.
CFR 2008 annual edition (revised as of 2008-07-01) · in effect Jul 1, 1997 to Jul 1, 2009
In addition to the powers specifically described in this part, the Appeals Board may request the submission of any information or the appearance of any person it considers necessary to resolve a matter before it and to enter any order it considers necessary for or appropriate to the disposition of any matter before it.