5 C.F.R. § 2424.31
When necessary to resolve disputed issues of material fact in a negotiability or bargaining obligation dispute, or when it would otherwise aid in decision making, the Authority, or its designated representative, may, in its discretion:
[63 FR 66413, Dec. 2, 1998, as amended at 88 FR 62459, Sept. 12, 2023; 88 FR 69873, Oct. 10, 2023]