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.

Views reference
Modification status
ID Name Status Last Updated Sort ascending
CMP316 CMP316: TNUoS Arrangements for Co-located Generation Sites Current
CMP403 and CMP404 CMP403 and CMP404: Introducing Competitively Appointed Transmission Owners & Transmission Service Providers (Section 14 and 11) Current
CMP436 CMP436 Update CUSC arrangements to replace the Electricity Arbitration Association with the London Court of International Arbitration (LCIA) (Non Charging) Current
CMP437 CMP437: Update CUSC arrangements to replace the Electricity Arbitration Association with the London Court of International Arbitration (LCIA) (Charging) Current
CMP420 CMP420: Treatment of BSUoS Revenue Recovery, and creation of a BSUoS Fund Withdrawn
CMP426 CMP426: TNUoS charges for transmission circuits identified for the HND as onshore transmission Current
Establishing ISOP in industry codes 2024 Establishing ISOP in industry codes 2024 Current
CMP417 CMP417: Extending principles of CUSC Section 15 to all Users Current
CMP413 CMP413: Rolling 10-year wider TNUoS generation tariffs Current
CMP418 CMP418: Refine the allocation of Dynamic Reactive Compensation Equipment (DRCE) costs at OFTO transfer Current

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.