Subject to agreement to the contrary, the following provisions apply under the Sri Lanka Act in regard to any decision made in the course of arbitral proceedings:-

(a) the decision shall be by a majority of the arbitrators;
(b) failing a majority, the decision of the arbitrator appointed by the other arbitrators shall be binding [section 6 (3)];
(c) where, in terms of the agreement or the Act, there is a Chairman, then the decision of the Chairman shall be binding [section 19(1)].

Where there is a Chairman, he has the power "o administer the conduct of the arbitral proceedings" [section 19 (2)].