CUSC Modifications
You can raise a modification – or mod – when you want to propose a change to any part of the CUSC.
For more information, please contact [email protected]
Search for any current or concluded modifications by name or ID. You can sort mods by ID, name, status or date of update.
| ID | Name | Status | Last Updated Sort ascending | Link to modification |
|---|---|---|---|---|
| CMP449 | CMP449: Rectifications to pending 01 April 2025 implementation legal text | Implemented | view | |
| CMP424 | CMP424: Amendments to Scaling Factors used for Year Round TNUoS Charges | Implemented | view | |
| CMP411 | CMP411: Introduction of Anticipatory Investment (AI) within the Section 14 charging methodologies | Implemented | view | |
| CMP392 | CMP392: Transparency and legal certainty as to the calculation of TNUoS in conformance with the Limiting Regulation | Implemented | view | |
| CMP408 | CMP408: Allowing consideration of a different notice period for BSUoS tariff settings | Implemented | view | |
| CMP421 | CMP421: CUSC Section 14 – Housekeeping changes update | Rejected | view | |
| CMP422 | CMP422: CUSC Non-Charging Housekeeping changes update | Rejected | view | |
| CMP443 | CMP443 - Removing references to “Fax” or “Facsimile” within the CUSC | Implemented | view | |
| CMP405 | CMP405: TNUoS Locational Demand Signals for Storage | Current | view | |
| CMP330 & CMP374 | CMP330&CMP374: Allowing new Transmission Connected parties to build Connection Assets greater than 2km in length & CMP374: Extending contestability for Transmission Connections | Current | view |
More about modifications
Modification Tracker
Our Tracker gives you the latest details on current code modifications including the purpose and the stakeholders it affects, as well as panel comments and where it is in the review process. It is published on the 7th (or next working day) of each month.
Modification Proposal Form
If you're thinking about raising a modification, please get in touch with us. Our experts can give you advice on your Proposal, explain how the modification process works and help to answer any questions you may have. When we receive your Proposal, we'll check it through and work together to make sure it's easy to understand.
Calendar
Once you've been in touch and are ready to write your Proposal paper, send it to us by the monthly modification submission date which you can find on our Calendar.