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Security of Gas Supply Regulation

In ForceRegulation

Introduction

Regulation (EU) 2017/1938, concerning measures to safeguard the security of gas supply, establishes a comprehensive framework to ensure the proper and continuous functioning of the EU's internal gas market. It repeals and replaces the previous Regulation (EU) No 994/2010, introducing a more robust, regionally-focused approach to preventing and responding to gas supply disruptions.

The regulation is built on the principle of shared responsibility among natural gas undertakings, Member States, and the European Commission. It mandates a three-level approach to crisis management, involving industry, national or regional authorities, and the Union. A key evolution is the establishment of 'risk groups'—predefined groups of Member States that must cooperate on assessing risks and developing joint preventive and emergency plans.

Recent amendments, notably Regulation (EU) 2022/1032, were introduced in response to geopolitical events to bolster the EU's energy security, primarily by mandating minimum gas storage levels ahead of winter periods.

Main Goal

The primary objective is to safeguard the security of gas supply across the European Union. This is achieved by establishing transparent, solidarity-based mechanisms for preventing gas crises and managing them effectively when they occur. The regulation aims to ensure that even in the event of a major supply disruption, the essential needs of citizens, especially protected customers, are met.

Who It Applies To

The regulation applies to a range of actors within the EU gas market:

  • Member States and their designated Competent Authorities.
  • Natural gas undertakings, which are responsible for implementing supply standards.
  • Transmission System Operators (TSOs) and Distribution System Operators (DSOs), who have roles in infrastructure management and crisis response.
  • Industrial gas customers and electricity producers, who are involved in emergency planning and may be subject to demand-side measures.

The regulation defines 'protected customers' who must be supplied with gas even during a crisis. This category always includes:

  • Household customers connected to a gas distribution network.

Member States can also extend this protection to:

  • Small and medium-sized enterprises (SMEs).
  • Essential social services (e.g., healthcare, emergency services).
  • Certain district heating installations.

Key Dates

  • 1 November 2017: The regulation became applicable.
  • 1 December 2018: The solidarity mechanism provisions became applicable.
  • 1 October 2018: Deadline for the first common and national risk assessments.
  • 1 March 2019: Deadline for the first preventive action and emergency plans. These are updated every four years.
  • 1 November 2022: Deadline for Member States to meet an 80% gas storage filling target for 2022.
  • From 2023 onwards: Member States must meet a 90% gas storage filling target between 1 October and 1 December each year.

Exemptions

  • Luxembourg, Slovenia, and Sweden: May be exempt from the N-1 infrastructure standard under specific conditions (e.g., having multiple interconnectors and supply sources, no storage facilities).
  • Malta and Cyprus: The regulation's obligations do not apply as long as no gas is supplied on their territories. Deadlines for compliance will be calculated from the date gas is first supplied.
  • Ireland, Cyprus, and Malta: The gas storage obligations do not apply as long as they are not directly interconnected to the gas system of another Member State.

Key Provisions

  • Infrastructure Standard (N–1 Formula): Member States must ensure that in the event of a disruption to the single largest gas infrastructure, the remaining network capacity can satisfy total gas demand on a day of exceptionally high demand.
  • Gas Supply Standard: Natural gas undertakings must be required to ensure gas supply to protected customers during extreme cold spells or for a 30-day period of high demand or major infrastructure disruption.
  • Risk Assessments and Plans: Member States, cooperating in regional 'risk groups', must conduct common risk assessments and establish joint Preventive Action Plans (to mitigate identified risks) and Emergency Plans (to manage supply disruptions).
  • Crisis Levels: Establishes three crisis levels: Early Warning, Alert, and Emergency, each triggering specific measures and information flows.
  • Solidarity Mechanism: As a last resort, a Member State facing a severe gas shortage can request solidarity from a directly connected Member State. The providing Member State must curtail supply to its non-protected customers to help supply the requesting Member State's 'solidarity protected customers'. This is provided on the basis of fair compensation.
  • Mandatory Gas Storage: Amendments require Member States with underground gas storage to ensure their facilities are filled to a binding target (90% from 2023) before the winter season. Member States without storage must make arrangements to store gas in other Member States.

Obligations & Requirements

  • Member States: Must designate a competent authority, conduct risk assessments, establish and test preventive and emergency plans, ensure compliance with infrastructure and supply standards, and enforce gas storage filling targets.
  • Natural Gas Undertakings: Must take measures to guarantee supply to protected customers, provide detailed information to authorities (including on long-term supply contracts), and cooperate in emergency situations.
  • Transmission System Operators (TSOs): Must enable permanent bi-directional capacity on interconnections between Member States (unless exempted) and cooperate during emergencies to manage gas flows.

Affected Products/Types/Actors/Processes

  • Products: Natural gas, Liquefied Natural Gas (LNG).
  • Actors: Natural gas undertakings, TSOs, DSOs, competent authorities, industrial consumers, electricity producers, district heating operators.
  • Processes: Gas procurement, cross-border gas transmission, gas storage management, crisis management, risk assessment, and emergency response coordination.

Penalties

The regulation requires Member States to establish rules on penalties for infringements. These penalties must be effective, proportionate, and dissuasive. Specific areas where penalties apply include:

  • Failure by natural gas undertakings to provide required information on gas supply contracts.
  • Failure by market participants to meet storage obligations required to fulfill the national filling targets.
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Pillars

SocialGovernance

Audience

BusinessStates

Applicable Area

EU

Categories

Legislation & frameworksEnergy ManagementRisk ManagementRegulatory ComplianceSupply Chain Risk ManagementAffordable EnergyEnergy EfficiencyEU Green Deal

Regulation (EU) 2017/1938

Timeline
  • Proposed
    Feb 16, 2016
  • Adopted
    Oct 25, 2017
  • Published
    Oct 28, 2017
  • In Force
    Nov 1, 2017
  • In Application
    Nov 1, 2017
  • Last Updated
    Mar 31, 2026

The Security of Gas Supply Regulation's requirements have been implemented in phases since its entry into force:

  • From 1 November 2017: The regulation's core provisions, including the requirement for Member States to conduct risk assessments and develop preventive action and emergency plans, became applicable.
  • From 1 December 2018: The solidarity mechanism (Article 13), a last-resort measure for crisis situations, became fully applicable.
  • By 1 October 2018: First deadline for Member States to complete and notify their national and common (regional) risk assessments.
  • By 1 March 2019: First deadline for Member States to establish and notify their Preventive Action Plans and Emergency Plans. These plans must be updated every four years.

Gas Storage Obligations (introduced by 2022 amendment): These obligations apply to Member States with underground gas storage facilities on their territory.

  • For 2022: A binding filling target of 80% of storage capacity was required by 1 November 2022.
  • From 2023 onwards: A binding filling target of 90% of storage capacity must be met at any point between 1 October and 1 December each year.

Obligations for Member States without Gas Storage:

  • These Member States must ensure that market participants within their territory have arrangements in place to use storage in other Member States. The stored volume must correspond to at least 15% of the Member State's average annual gas consumption over the preceding five years.

Documents & Attachments

Official Documents

Russian Gas and Oil Import Phase-out
Regulation (EU) 2026/261Jan 26, 2026
RegulationEnglishEU
Gas Storage for Securing Gas Supplies Regulation
Regulation (EU) 2025/1733Jul 18, 2025
RegulationEnglishEU
Russian Gas Phase-out and Energy Dependency Monitoring Regulation
Proposal for a REGULATION OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL on phasing out Russian natural gas imports, improving monitoring of potential energy dependencies and amending Regulation (EU) 2017/1938Jun 17, 2025
Proposal OfficialEnglishEU
Gas Storage Security of Supply Regulation
Proposal for a REGULATION OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL Amending Regulation (EU)2017/1938 as regards the role of gas storage for securing gas supplies ahead of the winter seasonMar 5, 2025
Proposal OfficialEnglishEU
Gas Storage Filling Trajectory Regulation
Commission Implementing Regulation (EU) 2024/2995Nov 29, 2024
Implementing ActEnglishEU
Renewable Gas, Natural Gas and Hydrogen Markets Regulation
Regulation (EU) 2024/1789Jun 13, 2024
RegulationEnglishEU
Underground Gas Storage Filling Trajectory Regulation
Commission Implementing Regulation (EU) 2023/2633Nov 20, 2023
Implementing ActEnglishEU
Underground Gas Storage Filling Trajectory Regulation
Commission Implementing Regulation (EU) 2022/2301Nov 23, 2022
Implementing ActEnglishEU
Gas Storage Regulation
Regulation (EU) 2022/1032Jun 29, 2022
RegulationEnglishEU
Gas Supply Security and Network Access Regulation
Proposal for a REGULATION OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL amending Regulation (EU) 2017/1938 of the European Parliament and of the Council concerning measures to safeguard the security of gas supply and Regulation (EC) n°715/2009 of the European Parliament and of the Council on conditions for access to natural gas transmission networksMar 23, 2022
Proposal OfficialEnglishEU
Internal Markets for Renewable and Natural Gases and Hydrogen Regulation
Proposal for a REGULATION OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL on the internal markets for renewable and natural gases and for hydrogen (recast)Dec 15, 2021
Proposal OfficialEnglishEU
Composition of Risk Groups
Commission Delegated Regulation (EU) 2022/517Nov 18, 2021
Delegated ActEnglishEU
Security of Gas Supply Regulation
Regulation (EU) No 994/2010Oct 20, 2010
RegulationEnglishEU

General Information Documents

P10_TA(2025)0146 – Security of energy supply in the EU – European Parliament resolution of 8 July 2025 on the security of energy supply in the EU (2025/2055(INI))
Jul 8, 2025
Communication Non LegislativeEnglishEU
REPORT FROM THE COMMISSION TO THE EUROPEAN PARLIAMENT AND THE COUNCIL on solidarity and certain aspects concerning gas storage based on Regulation (EU) 2017/1938 of the European Parliament and of the Council
Mar 5, 2025
InformationEnglishEU
REPORT FROM THE COMMISSION TO THE EUROPEAN PARLIAMENT AND THE COUNCIL on certain aspects concerning gas storage based on Regulation (EU) 2017/1938 of the European Parliament and of the Council
Feb 27, 2024
InformationEnglishEU
REPORT FROM THE COMMISSION TO THE COUNCIL AND THE EUROPEAN PARLIAMENT reviewing the application of Regulation (EU) 2017/1938
Oct 5, 2023
InformationEnglishEU
COMMISSION STAFF WORKING DOCUMENT Commission assessment of the Gas Security of Supply Regulation Accompanying the document REPORT FROM THE COMMISSION TO THE COUNCIL AND THE EUROPEAN PARLIAMENT reviewing the application of Regulation (EU) 2017/1938
Oct 5, 2023
InformationEnglishEU
REPORT FROM THE COMMISSION TO THE EUROPEAN PARLIAMENT AND THE COUNCIL on certain aspects concerning gas storage based on Regulation (EU) 2017/1938 of the European Parliament and of the Council
Mar 27, 2023
InformationEnglishEU
COMMISSION STAFF WORKING DOCUMENT Accompanying the document REPORT FROM THE COMMISSION TO THE EUROPEAN PARLIAMANT AND THE COUNCIL on certain aspects concerning gas storage based on Regulation (EU) 2017/1938 of the European Parliament and of the Council
Mar 27, 2023
InformationEnglishEU
European Parliament resolution of 5 October 2022 on the EU’s response to the increase in energy prices in Europe (2022/2830(RSP))
Oct 5, 2022
Communication Non LegislativeEnglishEU

Supportive Documents

Commission Recommendation (EU) 2018/177 of 2 February 2018 on the elements to be included in the technical, legal and financial arrangements between Member States for the application of the solidarity mechanism under Article 13 of Regulation (EU) 2017/1938 of the European Parliament and of the Council concerning measures to safeguard the security of gas supply
Feb 2, 2018
GuidanceEnglishEU