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.

Modification status
ID Name Status Last Updated Sort ascending
CMP254 CMP254: Addressing discrepancies in disconnection / de-energisation remedies Concluded
CMP270 CMP270: Potential consequential changes to the CUSC as a result of CMP265 Concluded
CAP148 CAP148: Deemed Access Rights to the GB Transmission System for Renewable Generators Concluded
CAP120 CAP120 - Connection Application Form– Alternative Connection Offers in England & Wales and Scotland Concluded
CAP164 CAP164: Transmission Access – Connect and Manage Concluded
CAP179 CAP179: Prevention of Timing Out of Authority Decisions Concluded
CMP217 CMP217: Clarification of the CUSC ‘Interruption Payment’ and ‘Interruption Period’ definitions Concluded
CAP159 CAP159: CUSC Mid Term Elections Concluded
CMP195 CMP195: Code Governance Review post implementation clarifications Concluded
CAP102 CAP102 - Revision of CUSC Amendment Provisions to allow a Proposer to state whether they believe their Amendment has a security of supply dimension which means in the view of the Proposer it should be excluded from the Appeals Mechanism by the Authority Concluded

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.