CHESS Replacement Project Update


December 2021

Well, we’ve made it to the end of 2021! Thank you for your continued support and partnership. And what a positive way to finish for the CHESS Replacement project – so let me share some important and recent milestones.

We opened the first of the integrated Industry Test Environments (ITE1) at the end of November. This was a significant milestone that allows software providers to transition from our customer development environment (CDE) to complete testing functional and non-functional workflows, an important pre-cursor to technical accreditation activities commencing next year. The opening of ITE1 also exposed for the first time, the newly developed secure and browser-based CHESS User Interface (UI) that uses the ledger API to provide access to the CHESS replacement system.

Last week, the consultation period closed for stakeholders to provide feedback on the operating rule amendments. A call out to all those organisations who provided feedback, your input will assist us in finalising the rules for the new system.

On Friday we published a paper outlining the strategy for cutover and migration. The paper includes an overview of the cutover weekend and key activities for CHESS users, including the approach for market dress rehearsals (MDRs) and considerations for post MDR day 1 testing. Further engagement with stakeholders on cutover and migration will be part of new CHESS user working groups that we will look to establish in the new year.

You can read a full update of project activity by clicking on relevant sections below.

I am also pleased to say the opportunity for investors to receive their CHESS holding statements and notifications electronically was successfully launched on 13 December.  For further information, please refer to our media release or contact

I hope you continue to find this newsletter useful, but if you have any feedback or enquires related to the CHESS Replacement project, please continue to direct them to 

Finally, I wish to thank all the organisations that have worked with us over the course of 2021, your input and feedback has been invaluable, and we look forward to your ongoing engagement and support with the project in 2022. In the meantime, enjoy the holiday season.


Tim Hogben
Group Executive
Securities and Payments

Engagement Activities

Customer Development Environment Updates

Rule Amendment & Public Consultation Timeline

Customer Frequently Asked Questions

Technical Documentation

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