Modifications can be raised by any party to the UNC and should be made on the standard forms available at:
Modifications should be sent to
A copy of the Legal Text Guidance Document is available at:
A copy of the Modification Register is available at: https://www.gasgovernance.co.uk/mods
UNC Workgroup and Modifications meetings are located under the Modifications Tab.
UNC Related Documents
Documentation related to the UNC and its development are available from these pages. This includes the latest version of the UNC itself, modifications, and all related meetings. Copies of the Transporters' Individual Network Codes are also provided
We have produced a short guide to what you can expect of us, which includes links to some industry websites, available in the Help menu