S.L. 387.1 · Arbitration Rules (S.L. 387.1)
S.L. 387.1 Art. 68Commencement of international arbitration.
(1) An international arbitration in relation to a particular dispute commences -
(a) when one party to an arbitration agreement sends a written request to the other referring a dispute covered by the arbitration agreement to arbitration; or
(b) both parties sign and date a joint declaration that a particular dispute has been referred to arbitration by the parties.
(2) The written request may be sent by hand, by mail or by fax and takes effect for all purposes at law when received by the respondent and in the case of a joint declaration when it is signed and dated by both parties.