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
PM0108 PM0108: STCP 11.4 Enhanced Service Provision Concluded view
CM070 CM070: Consequential STC Updates following implementation of RfG and HVDC into the GB Grid Code Concluded view
PM0109 PM0109: STCP27-01 Legal Separation Amendments Concluded view
PM0110 PM0110: Housekeeping Modification to align STCP18-1 -STCP18-6 with existing working practices Concluded view
PM0119 PM0119: TNUoS Revenue Collection Risk Transfer Concluded view
CM082 CM082: STC Governance Improvements Concluded view
PM0125 PM0125 - STCP01-1 Amendment to Allow Electronic Switching Instruction Concluded view
CM092: Schedule 9: TO Construction Terms Update CM092: Schedule 9:TO Construction Terms Update Concluded 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.