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XRN 5556H
CMS Rebuild – Delivery of GSR and MUS

This XRN is part of XRN 5556 CMS Rebuild parent XRN
Last Updated
11 Dec 2023
Release Type
Implementation Date
Proposer Xoserve Impacted DSC service area


Not applicable

Customer Change Team Leader


This XRN will be a child XRN to 5556. Within this version we will strive to deliver additional functionality and processes where possible, however our priority processes are Gas Safety Regulations (GSR), Manage Unregistered Sites (MUS). Should we have capacity in this version release to include anything additional, this shall be communicated out via Change Packs and the forums ChMC, CoMC and the Customer Focus Group.

We are currently targeting the late Q4 2023 for delivery. As per previous releases we shall be discussing in detail the process within our Customer Focus Groups and the supporting Change pack will be issued for consultation in July for August ChMC.

Impacted Customer Types

  • Shipper
  • DNO
  • IGT


Document title Comment Last updated CHMC outcome
Change Proposal CP raised 11/12/2023 For information at ChMC 12/07/23
DSG Discussion N/A 01/08/2023 N/A

Detailed Design

3203.3 - VO - PO 14/08/2023 Approved at ChMC 09/08/23

Detailed Design

3221.2 - VO - PO  16/10/2023 Approved at ChMC 11/10/23

DSG Discussion

N/A 02/10/2023 N/A


Initial Review
Change Proposal raised 28/06/23
Status For information at ChMC 12/07/23
Expected: 00/00/00
Status Stage not required
Solution Consultation
Expected: 00/00/00
Status Stage not required
Awaiting Delivery
Within Detailed design phase 12/07/23
Status Detailed Design Change Pack issued for consultation, for voting at ChMC 09/08/2023-approved at ChMC
In Delivery
Detailed Design Change Pack issued for consultation, approved at ChMC 11/10/2023 11/10/23
Status Awaiting implementation date
Expected: 00/00/00
Status Awaiting

Contact the Change Team

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