Consultation TSC 2026
The consultation process for the TSC (Transmission Service Conditions) 2026 will commence on Tuesday November 11th 2025. Questions and responses regarding the proposed changes in this draft TSC can be sent by email to the Customer Desk. The consultation will run until Wednesday November 26th. We expect to publish the final TSC 2026 on our website early December 2025. The TSC 2026 will take effect on 1 January 2026.
The TSC contains the general conditions concerning the transmission of natural gas and the performance of the services as part of agreements between GTS and a shipper or AMEX/EWEX (end user with exit capacity). These general conditions supplement the Dutch gas codes as established by the regulatory authority, the Netherlands Authority for Consumers and Markets (ACM).
The main change GTS intends to implement is that the updated TSC will, where possible, adopt and use definitions as defined in the new Gas Regulation and the Dutch Energy Act, which will take effect on January 1, 2026. An accompanying explanation and an overview of changes to the TSC appendices can be found in the document "Changes TSC 2026". An overview of changes to the main text of the TSC can be found in the document "Compare Main text TSC 2026 vs 2025". For completeness, the intended new versions of the TSC and its appendices are also published in full on this page.