On 1 August 2016, the 6th edition of the SIAC Rules was launched (2016 SIAC Rules), and applies to SIAC arbitration proceedings commenced on or after 1 August 2016, unless the parties agree otherwise (SIAC, rule 1.2). The meaning of 'commenced' pursuant to the 2016 SIAC Rules is discussed below. The previous, 5th edition of the SIAC Rules came into force on 1 April 2013 (2013 SIAC Rules), and applies to arbitrations commenced on or after that date, unless the parties agree otherwise (SIAC, rule 1.2). When a dispute arises between the parties, as a first step, it is important to examine the precise wording and scope of any applicable arbitration agreement. It is assumed for the purposes of this Q&A that the parties have agreed in writing to arbitrate pursuant to the SIAC Rules. Note: this Q&A does not address the position in respect of arbitrations commenced before 1 April 2013. In the event that this is relevant for your dispute, please consult the edition of the SIAC Rules applicable