The following list set out all live Modifications, including those under development, currently out for consultation, awaiting Authority Direction or awaiting implementation. Click on each Modification to visit the individual Modification page, where you can find all related documentation and information.
Information on live Modifications can also be found in the ‘Modifications Register‘.
Information on closed Modifications, which are Modifications that have been implemented, withdrawn or rejected, can be found on the ‘Closed Modifications’ page of our website.
Live Modifications
IGT180 – CDSP Obligations required for the introduction of the Gas Shipper Obligation: This Modification is currently with the Workgroup for development and assessment. This Modification is related to UNC0922.
IGT183 – Maintenance criteria for Emergency Contact data held in Central Systems: This Modification is currently with the Workgroup for development and assessment. This Modification relates to UNC0926S.
All other live Modifications are either awaiting Authority Direction, implementation or are out for consultation as per below.
Live Consultations
There are currently no Modifications out for industry consultation.
Modifications Awaiting Authority Direction
CSL01 – Exclusion of Standalone Networks from IGT UNC: The Final Modification Report was issued to the Authority on 1st June 2026.
Modifications Awaiting Implementation
There are currently no Modifications awaiting implementation.