The initial regulatory asset base is the value of assets used by the railway owner to provide access to its network, and it forms the foundation for calculating allowed revenue and return on investment. File Attachment Expand All | Collapse All Papers Document ERA Letter of extension of s47J(3) and 47K(3) periods 0.13 MB 18 Nov 2025 Document Statement of Depreciated Optimised Replacement Cost 2.52 MB 07 Aug 2025 Document Statement of Applicable Depreciation Schedule 0.16 MB 07 Aug 2025 Document Notice - Rail access regulation - Pre-lodgement consultation 0.16 MB 10 Apr 2025 Main navigation Public Transport Authority Costing principles Initial regulatory asset base Overpayment rules Segregation arrangements Standard access provisions Total and incremental costs Train management guidelines Train path policy