5 C.F.R. § 2424.10
Where an exclusive representative and an agency are unable to resolve disputes that arise under this part, they may request assistance from the Collaboration and Alternative Dispute Resolution (CADR) Program or the Office of Case Intake and Publication (CIP), which will refer requests to the CADR Program. Upon request, as resources permit, and as agreed upon by the parties, CADR representatives will attempt to assist the parties to resolve these disputes. Parties seeking information or assistance under this part may call the CADR Office at (771) 444-5802 or the Office of CIP at (771) 444-5805, or write those offices at 1400 K Street NW, Washington, DC 20424-0001. A brief summary of CADR activities is available on the internet at www.flra.gov.
5 C.F.R. §2424.10