Writ of mandamus filed against the CEF. Arbitrator seeking inclusion of his name in the list of arbitrators accredited by the CEF, so that his arbitral awards on agreed terms recognizing the termination of employment relationships may be accepted for the purpose of allowing workers whose employment relationships have been terminated to make withdrawals from their linked FGTS accounts. Failure to demonstrate a clear and certain right. Dismissal of the writ of mandamus: