STC Modifications

You can raise a modification – or mod – when you want to propose a change to any part of the STC. 

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 or filter according to status.

Modification status
ID Name Status Last Updated Sort ascending Link to modification
PM0143 Implementing Connection Reform PM0143 Implementing Connection Reform Implemented view
PM0142 PM0142: Application of Gate 2 Criteria to existing contracted background Implemented view
CM095 CM095 - Implementing Connections Reform Implemented view
CM091 - Implementation of Emergency and Restoration Code Phase II CM091 - Implementation of Emergency and Restoration Code Phase II Concluded view
CM094 CM094 - Amendment to Bi-annual estimate provisions Rejected view
CM084 CM084: Clarify STCP modification approach for cross-code changes Implemented view
PM0135 PM0135: Proposed changes to STCP19-3 to improve the clarity around Compliance responsibilities between the Electricity System Operator and Transmission Owners Implemented view
PM0145 Digital Communication System Integration PM0145 Digital Communication System Integration Withdrawn view
CM0101 CM0101 - Additional Definitions in Relation to PM0144 Implemented view
CM098 CM098: Updating STC Arrangements to replacing the Electricity Arbitration Association with the London Court of International Arbitration Implemented 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.

STCP Modification Proposal Form

Download the STCP Proposal form, when we receive your Proposal, we'll check it through and work together to make sure it's easy to understand.

STC Modification Proposal Form

Download the STC Proposal form, 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.