Please be aware that on 25th September 2026 the IGT UNC Panel approved the below 2027-28 NExA AQ Review Values:
These values will be implemented on 26th February 2027 (as part of the February 2027 Release). The values will be valid from the day of release.
Any parties with any questions about the NExA AQ Values should contact the Code Administrator (IGTUNC@talan.com).
Please be advised that BUUK has today raised the following Fast Track Self-Governance Modification Proposal:
Summary of Modification
The purpose of this Fast Track Self-Governance Modification Proposal is to correct housekeeping errors within IGT UNC Parts CI-CV, L, O and the IGT UNC Derogations Guidance document, all of which have been reviewed as part of RG008.
Next Steps
The Panel will consider this Modification, which is proposed to be a Fast Track Self-Governance Modification, at its meeting on 25th September 2026.
Any party objections to this Fast Track Self-Governance Modification Proposal should be submitted to the IGT UNC Code Administrator (IGTUNC@talan.com) by 23rd September 2026.
Further Information
Further information, including the Proposal Form and legal text, can be found on the IGT184 page of the IGT UNC website.
If any parties have any questions about this Modification, please do not hesitate to reach out to the Code Administrator.
We are pleased to confirm that version 13.29 of the IGT UNC went live with effect from 05:00 on 14th August 2026.
A copy of v13.29 (clean and tracked) can be found on the IGT UNC website, here.
Changes included in this Release
This Release incorporated changes to the IGT UNC for the following approved Modification:
This Release also incorporated Phase 2 changes for the following approved Modification:
Phase 1 changes for IGT181 went live on 23rd July 2026.
If any Parties have any comments with regards to this Code Release, please contact the Code Administrator.
We are pleased inform you that the Extraordinary July 2026 Release is now live, and v13.28 of the IGT UNC has been published today. A change marked and clean version of this Code Release have been uploaded to the IGT UNC website, here.
Modifications included in this Release
This Extraordinary Release went live with effect from 05:00 today and incorporated changes to implement the following Modifications:
If any Parties have any comments with regards to this Extraordinary Release, please contact the Code Administrator.
Please be advised that BUUK have raised a new IGT UNC Review Proposal:
Purpose of Review
The Uniform Network Code (UNC) Performance Assurance Committee (PAC) has agreed that further investigation should be undertaken to consider what the introduction of Qualification Requirements for new Shippers under both the Independent Gas Transporter Uniform Network Code (IGT UNC) and UNC might involve.
An equivalent UNC Review Group Request has been raised as 0938R – Introduction of Qualification Requirements for new Shippers’.
This request seeks to explore the elements that could potentially form part of any future market entry requirements within the IGT UNC and UNC.
Next Steps
The Panel will consider the Review Request at its meeting on 1st July 2026.
Further Information
Further information, including the Review Proposal Request Form, can be found on the RG009 page of the IGT UNC website.
If any parties have any questions about this Review, please do not hesitate to reach out to the Code Administrator.
Please be advised that Version 13.26 of the IGT UNC went live with effect from 05:00 on Friday 29th May 2026.
The updated Code can be found on the IGT UNC website, here.
Changes included in this Release
This Release incorporated the Ofgem designated changes for the implementation of the prioritisation process as set out under Code Reform.
If any Parties have any comments with regards to this Code Release, please contact the Code Administrator.
Please be advised that Centrica has today raised the following IGT UNC Modification:
Summary of Modification
IGT UNC Part I 1.15 a) outlines that the Central Data Services Provider (CDSP) has an Agency Function to maintain a record of User emergency contact details. This Modification has been raised to outline the parameters in which the emergency contact details are maintained under Part I 1.15 a) and under what circumstances emergency contact details provided for Larger Supply Points below the Annual Quantity (AQ) threshold (see IGT UNC Part I 8.0 and 9.0) should be recorded and retained.
Next Steps
The Panel will consider this Modification, which is proposed to be a Self-Governance Modification, at its meeting on 29th May 2026.
Further Information
Further information, including the Proposal Form, can be found on the IGT183 page of the IGT UNC website.
If any parties have any questions about this Modification, please do not hesitate to reach out to the Code Administrator.
Please be advised that CSL has today raised the following IGT UNC Modification:
Summary of Modification
The purpose of this Fast Track Self-Governance Modification Proposal is to align the existing IGT UNC definition with the UNC definition of the Data Permissions Matrix as proposed by UNC 0921S – Broadening the definition of the Data Permissions Matrix to align with disclosure of UK Link Gemini data.
Next Steps
The Panel will consider this Modification, which is proposed to be a Fast Track Self-Governance Modification, at its meeting on 26th June 2026.
Any party objections to this Fast Track Self-Governance Modification Proposal should be submitted to the IGT UNC Code Administrator (IGTUNC@talan.com).
Further Information
Further information, including the Proposal Form, can be found on the IGT182 page of the IGT UNC website.
If any parties have any questions about this Modification, please do not hesitate to reach out to the Code Administrator.
Please be advised that ES Pipelines Limited has today raised the following IGT UNC Modification:
Summary of Modification
This Modification seeks to align the IGT UNC with the changes implemented into the Uniform Network Code (UNC) under UNC0854 ‘Revision of Virtual Last Resort User and Contingent Procurement of Supplier Demand Event Triggers’ in May 2024. This will ensure that the UNC processes can apply to IGT Supply Meter Points (SMPs) as intended under UNC0854.
Next Steps
The Panel will consider this Modification at its meeting on 27th February 2026.
Further Information
Further information, including the Proposal Form, can be found on the IGT181 page of the IGT UNC website.
If any parties have any questions about this Modification, please do not hesitate to reach out to the Code Administrator.
Please be advised that BUUK has today raised the following IGT UNC Modification:
Summary of Modification
The Gas Shipper Obligation (GSO) is intended to be the long-term funding mechanism for initial hydrogen production projects funded through the Hydrogen Production Business Model (HPBM).
The GSO charge will be placed on Shippers based on the quantity of gas they ship to customers. The GSO scheme will be administered by the GSO Administrator (who is expected to be the Low Carbon Contracts Company (LCCC), subject to formal appointment through regulations) and will be outside of the IGT UNC (as well as the UNC). This Modification will create obligations on the Central Data Service Provider (CDSP) to provide services to the GSO Administrator to support the implementation of the GSO scheme, including a period of live data testing. It is proposed that a subsequent Modification to this one is developed and implemented to ensure the CDSP Obligations endure following implementation of the GSO legislation.
Next Steps
The Panel will consider this Modification at its meeting on 23rd January 2026.
Please be advised that this Modification is being progressed jointly with related UNC Modification 0922 – CDSP Obligations required for the introduction of the Gas Shipper Obligation. The Joint Office will be administering the joint IGT UNC and UNC Workgroup meetings. The first three meetings have been scheduled as follows:
Thursday 12th February 2026: from 9.30am to 11.30am
Thursday 12th February 2026: from 9.30am to 11.30am
Thursday 23rd February 2026: from 9.30am to 11.30am
Any IGT UNC Parties wishing to attend these meetings can provide attendee names and email addresses to the IGT UNC Code Administrator (IGTUNC@talan.com), who will pass the details onto the Joint Office. Alternatively, parties can also contact the Joint Office directly (enquiries@gasgovernance.co.uk) to provide this information.
Further Information
Further information, including the Proposal Form, can be found on the IGT180 page of the IGT UNC website.
If any parties have any questions about this Modification or the joint Workgroup meetings, please do not hesitate to reach out to the Code Administrator.