Types of Arbitrators
1. Ad Hoc Arbitrator or Panel of Arbitrators - is selected after dispute arises. He is named to arbitrate a specific dispute or a specific group of disputes, and there is no commitment to select him again.
§ those who are selected and appointed by the parties in accordance with the established procedures in the CBA
§ thru the assistance of the NCMB or its appropriate Regional Branch
2. Permanent Arbitrator or Panel of Arbitrators - those who are specifically named in the parties’ CBA. He is selected to serve for a period of time, usually during the life of the CBA, rather than for just one case or specific group of cases.