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.
| ID | Name | Status | Last Updated Sort ascending | |
|---|---|---|---|---|
| CM084 | CM084: Clarify STCP modification approach for cross-code changes | Concluded | ||
| CM092: Schedule 9: TO Construction Terms Update | CM092: Schedule 9:TO Construction Terms Update | Concluded | ||
| CM059 | CM059: Changes to Section C and H following OFGEM Response to Adjudication Request | Concluded | ||
| PM083 | PM083: STCP 19-5 – Update and clarification of process for issuing an FSKN to prospective OFTOs | Concluded | ||
| PM0100 | PM0100: STCP19-3 'Operational Notification & Compliance Testing – update to reflect current process, common practice and terminology.' | Concluded | ||
| CM071 | CM071: Housekeeping amendment to definition of National Grid Electricity System Operator (NGESO) for legal separation on 1 April 2019 | Concluded | ||
| CM077 | CM077 - Re-alignment of STC and STCP provisions for Construction Offer Timescales | Concluded | ||
| PM0126 | PM0126: Transmission Impact Assessment Process in relation to CMP298 | Current | ||
| PM0135: Proposed changes to STCP19-3 to improve the clarity around Compliance responsibilities between the Electricity System Operator and Transmission Owners | PM0135: Proposed changes to STCP19-3 to improve the clarity around Compliance responsibilities between the Electricity System Operator and Transmission Owners | Current | ||
| CMFT060 | CMFT060: This proposal seeks to modify the System Operator Transmission Owner Code (STC) to reflect inconsistencies identified by Ofgem in the legal drafting changes under Code Governance Review Phase 2 in Section B of the STC | Concluded |
More about modifications
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.
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.