Arbitration Act 2005 s 12
(1) The parties are free to determine the number of arbitrators. (2) Where the parties fail to determine the number of arbitrators, the arbitral tribunal shall— (a) in the case of an international arbitration, consist of three arbitrators; and (b) in the case of a domestic arbitration, consist of a single arbitrator.
Bilangan penimbang tara
(1) Pihak-pihak adalah bebas untuk menentukan bilangan penimbang tara. (2) Jika pihak-pihak gagal menentukan bilangan penimbang tara, tribunal timbang tara hendaklah— (a) dalam hal suatu timbang tara antarabangsa, terdiri daripada tiga orang penimbang tara; dan (b) dalam hal suatu timbang tara domestik, terdiri daripada penimbang tara tunggal.
Source: Laws of Malaysia, Attorney General's Chambers of Malaysia (lom.agc.gov.my). Not a copy of the Gazette printed by the Government Printer (Interpretation Acts 1948 and 1967, s 61).