0896 Uniform Network Code (UNC) changes
- Publication type:
- Code modification
- Publication date:
- Topic:
- Gas shipping, Gas supply, Gas transmission, Energy codes
- Industry sector:
- Generation and Wholesale Market,
- Supply and Retail Market,
- Transmission Network
Related links
Outcome of changes to Uniform Network Code 0896, Reducing the current code cut-off date (Line in the Sand) from 3 to 4 years to 2 to 3 years.
Details of outcome
We have decided to approve changes to Uniform Network Code 0896. These changes mean that the code cut-off period will be reduced from 3 to 4 years to 2 to 3 years.
Start date
The change will start from 1 April 2026.
Code modification description
Changes to UNC0896 proposes a reduction in the code cut-off date, known as the Line in the Sand (LIS) from the current 3 to 4 years to 2 to 3 years. This change reflects improvements in data accuracy and availability by the deployment of smart and advanced gas meters. Previously, the longer LIS period was necessary to accommodate data lags and manual processes, but it now presents increased financial risk due to retrospective adjustments.
The change, raised by SEFE Energy, involved updating the UNC definition of the code cut-off date to reflect a shorter reconciliation window. To support this transition, a Transitional Business Rule (TBR) will be introduced. This means that shippers will have to submit 80% of consumption adjustments by 10 February 2026 and, the remaining 20% submitted by 10 March 2026. This change is designed to reduce the burden on the Central Data Service Provider (CDSP) and modernise settlement practices in line with technological advancements.
It is important that UNC0896 and UNC0886V are read together.
UNC0896 shortens the reconciliation window, while UNC0886V introduces a monthly rolling update to the code cut-off date. Implemented together, they represent a coordinated effort to modernise gas settlement processes, improve data accuracy, and reduce financial risk across the industry.