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
PM0148 PM0148 - STCP Consequential Modification for CMP447: Removal of designated strategic works from cancellation charges/securitisation Current view
CM0102 CM0102 Rectification to implementation of various legal text Implemented view
CM097 CM097:Electromagnetic Transient (EMT) and Root Mean Square (RMS) Model Submission for Transmission Owners (TOs) Current view
PM0134 – Introducing Competitively Appointed Transmission Owners & Transmission Service Providers PM0134 – Introducing Competitively Appointed Transmission Owners & Transmission Service Providers Implemented view
PM0141 PM0141 Incorporating a revised outage change code list in STCP 11.2 Appendix 5 Implemented view
PM0147 PM0147 RMS and EMT Model Sharing Process (STCP 12-2 Issue 01) Current view
PM0124 PM0124: Enduring Expansion Constant & Expansion Factor Review Current view
PM0120 PM0120: Connections Triggering Distribution Impact Assessment Current view
CM079 CM079: Consideration of STC/STCP changes in relation to CMP330/374 Current view
CM078 CM078: Connections Triggering Distribution Impact Assessment 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.

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.