Image of back arrow Back to filtered results

XRN 5496
Change to Service Description Table

Last Updated
25 Apr 2022
Release Type
Implementation Date
20 Apr 2022
Proposer Xoserve Impacted DSC service area


Not applicable

Customer Change Team Leader


A new service line ASGT-CS SA8-42 has been created to support

XRN5458  which was raised to implement the solution required to be delivered as set out in the Urgent Modification 0791 - Contingency Gas Procurement Arrangements when a Supplier acts under a Deed of Undertaking

Service Requirement Description

Service Requirement Trigger

To enable National Grid NTS to procure gas where, following the termination
of a Shipper User providing shipping services to one or more Gas
Suppliers, no new Shipper User (a ‘Registered User’) is appointed
and one or more of the Suppliers acts in accordance with its deed
of undertaking until such time a new Registered User is in place.

From the point the Termination Notice is issued to a Shipper User (the Terminated Shipper) and where there is no new Registered User is in place or appointed



Impacted Customer Types

  • IGT
  • NGT
  • Shipper
  • DNO


Document title Comment Last updated CoMC outcome
Change Proposal Documentation Change 04/04/2022 Approved on 20/04/2022
Initial Review N/A N/A N/A
DSG Discussion Overview provided 25/04/2022 N/A
High Level Solution Options N/A N/A N/A
Solution Review N/A N/A N/A
Detailed Design N/A N/A N/A
Evaluation Quotation Reports (EQR) N/A N/A N/A
Business Evaluation Reports (BER) N/A N/A N/A
Change Completion Reports (CCR) N/A N/A N/A


Initial Review
Change Proposal raised 04/04/22
Status Awaiting approval at CoMC
Expected: 00/00/00
Status Stage not used
Solution Consultation
Expected: 00/00/00
Status Stage not used
Awaiting Delivery
Expected: 00/00/00
Status Stage not used
In Delivery
Expected: 00/00/00
Status Stage not used
Expected: 20/04/22
Status CoMC approved document changes

Contact the Change Team

Need to get in touch with a member of the Change Team?

You can email us at: and we'll get back on the same day between the hours of 9:00am to 4:30pm.