The Technical Management Rules of the System articulate the operation of the Gas System, establishing the relationships between the different agents and the corresponding action procedures. They establish the general conditions for the use of the facilities by the users, as well as the main lines for the operation, and include procedures for the management of the System in normal, exceptional and emergency operation scenarios.
These Rules are applicable to the Technical Manager of the System, transporters, distributors, marketers and direct market consumers.
The NGTS and detailed protocols are continuously updated by a working group comprised of representatives of the GTS, CNMC, Ministry, CORES and REE, as well as representatives of the different types of System agents: transmission companies, distributors, shippers and direct market consumers.
The GTS is responsible for forwarding the group’s proposals to the Directorate General for Energy Policy and Mines for processing and, where applicable, approval.
Agent representatives are elected every two years. If you have any questions about the election process, please contact eleccionesgrupoNGTS@enagas.es.
Minutes of constitution of polling station 2025
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NGTs-WG elections. Provisional voter registry 2025
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Annex I - 2025 Election Calendar NGTS Working Group
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NGTS Working Group 2025 Election Procedure
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Annex II - Responsibility Statement Form 2025
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The procedures describe in detail the conditions of use and operation of the System. There are two types of procedures:
PA-6 Oversupply and capacity buyback in the Spanish Gas System
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Details of the Bilateral Capacity Transfer and Subleases Process_Version 0
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Intramonthly SLOTS Auction Bid Form_Version 1
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Details Capacity Waiver Request Process_Version 1
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Waiver of Capacity Form_Version 1
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In this section, you can download the regulations and standards for the measurement, quality and odorisation of gas and gas equipment, in accordance with the provisions of PD-01.
Natural gas. Determination of composition with defined uncertainty by gas chromatography. Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns. UNE-EN ISO 6974-6:2006
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Gas meters. Diaphragm meters. UNE-EN 1359:2006
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Ultrasonic domestic gas meters. UNE-EN 14236:2007
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Natural gas. Performance evaluation for on-line analytical systems.UNE-EN ISO: 10723:2005
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Natural gas. Determination of water by the Karl Fischer method. Part 2: Titration procedure. UNE-EN ISO: 10101-2:1998
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