Under NBN Co’s Special Access Undertaking, NBN Co must lodge a replacement module application covering the regulatory cycle after 2026.
On 1 July 2024, the ACCC provided notice to NBN Co specifying that the due date for lodging its replacement module application is 2 July 2025. The ACCC also provided a request for information and documents in support of NBN Co’s application.
NBN Co was required to consult with access seekers and consumer advocacy groups regarding relevant expenditure proposed during that regulatory cycle before lodging its application.
The ACCC will assess the replacement module application lodged by NBN Co. The ACCC will consult with stakeholders, assess the proposal, and make a replacement module determination based on its assessment.
The replacement module determination establishes a set of access terms and conditions for the upcoming regulatory cycle (of between 3 to 5 years). It will also address the other matters raised in NBN Co’s replacement module application.
The ACCC will make its replacement module determination at least 20 business days before the last day of the current regulatory cycle (30 June 2026), unless extended by up to 6 months.
NBN Co provided its replacement module application and supporting documents to the ACCC on 2 July 2025.
The ACCC published NBN Co’s replacement module application and redacted supporting materials on 24 July 2025, pending consideration of NBN Co confidentiality claims within these and other supporting materials. We will release further supporting materials as the confidentiality claims are considered.
We published our consultation paper on the replacement module on 22 August 2025. Following this, we published a consultation paper focusing on benchmark service standards on 18 November 2025.
Indicative timetable for ACCC consideration of NBN Co’s replacement module application
The table outlines an indicative timetable for the ACCC’s processes to consider NBN Co’s replacement module application and make our replacement module determination.
| Milestone | Date* |
|---|---|
| NBN Co submits its replacement module application to the ACCC | 2 July 2025 |
| ACCC publishes replacement module application and supporting materials | July/August 2025 |
| ACCC publishes a consultation paper | 22 August 2025 |
| Due date for submissions to the consultation paper | 19 September 2025 |
| ACCC publishes consultation paper on benchmark service standards | 18 November 2025 |
| Stakeholder forum | 28 November 2025 |
| Due date for submissions to benchmark service standards consultation paper | 17 December 2025 |
| ACCC publishes a draft determination | By 31 March 2026 |
| Submissions close on the draft determination | End April 2026 |
| ACCC publishes its replacement module determination | By 2 June 2026 unless extended |
*This is an indicative timetable and dates are subject to change.