Key data
| Regulation | Commission Decision (Euratom) 2026/1691, of 8 July 2026 |
|---|---|
| Official reference | OJ:L_202601691 |
| Publication | 9 July 2026 |
| Entry into force | 8 July 2026 (immediate provisional application) |
| Affected parties | Nuclear operators, regulatory authorities and companies with activity in Gibraltar or linked to the territory |
| Category | Energy / Nuclear Energy |
| Geographic scope | Gibraltar (territory excluded from the Brexit Trade and Cooperation Agreement) |
| Legal framework | Euratom Treaty — European Atomic Energy Community |
Gibraltar was excluded from the Trade and Cooperation Agreement signed after Brexit, which created a regulatory vacuum in atomic energy matters for this territory. That vacuum is now closed with the Decision (Euratom) 2026/1691, which authorizes the European Commission to conclude and provisionally apply a specific agreement with the United Kingdom referring exclusively to Gibraltar under the Euratom Treaty.
Provisional application—in force since 8 July 2026, one day before its official publication—ensures that the agreement has full legal effects before the formal ratification process is completed. For affected operators and companies, this means that the obligations arising from the agreement are enforceable from now on.
What does this regulation establish?
Decision (Euratom) 2026/1691 establishes the legal framework for cooperation in atomic energy matters between the EU and the United Kingdom with respect to Gibraltar. The pillars of the agreement are as follows:
- Nuclear safeguards: Control and verification mechanisms are established for nuclear materials and facilities in Gibraltar, aligned with Euratom standards.
- Transfers of nuclear materials: The movement of nuclear materials to, from and through Gibraltar is regulated, including necessary conditions and authorizations.
- Nuclear liability: The liability regime applicable to nuclear activities linked to the territory is defined.
- Provisional application: The agreement takes effect before its formal ratification, ensuring regulatory continuity without temporal gaps.
- Brexit context: Gibraltar was expressly excluded from the EU-UK Trade and Cooperation Agreement, so this specific agreement covers that vacuum in the nuclear field.
The European Commission acts in this case on behalf of the European Atomic Energy Community (Euratom), not the EU in the broad sense, which limits the scope of the agreement exclusively to the nuclear and atomic field.
Economic and operational impact
The direct impact of this agreement is not measured in figures of fees or fines published in the regulation, but in operational and compliance changes for actors linked to Gibraltar in the nuclear field:
- Guaranteed regulatory continuity: Facilities and operators that worked in a legal limbo since Brexit now have a clear framework. This reduces regulatory risk and facilitates operational planning.
- New safeguard obligations: Operators must adapt their internal procedures to Euratom control and verification requirements applicable to Gibraltar.
- Material transfers: Companies moving nuclear materials to or from Gibraltar must review their authorizations and transfer procedures under the new framework.
- Nuclear liability: The applicable liability regime changes from the legal vacuum situation prior to the agreement, with implications for insurance and risk coverage.
- Relevance for Spain: Given the historical dispute over Gibraltar and geographic proximity to nuclear facilities, Spanish regulatory authorities and energy sector companies with presence in the Campo de Gibraltar must closely monitor the implementation of the agreement.
Who does it affect?
- Nuclear operators with facilities or activities in Gibraltar or linked to the territory.
- Regulatory authorities of the United Kingdom and the EU with competence in nuclear matters over Gibraltar.
- Transport and logistics companies that manage transfers of nuclear materials to, from or through Gibraltar.
- Insurance companies and risk management entities that cover nuclear liability in the Gibraltar field.
- Spanish energy companies with presence in the Campo de Gibraltar or with commercial relationships linked to the territory.
- Legal advisors and compliance consultants who advise clients with activity in Gibraltar in the energy or nuclear sector.
Practical example
A Spanish radioactive waste management company operating in the Campo de Gibraltar that until now managed transfers of materials to Gibraltar under a regime of legal uncertainty—a direct consequence of Gibraltar's exclusion from the Brexit Trade and Cooperation Agreement—must now review all its transfer procedures.
With the entry into force of Decision (Euratom) 2026/1691 on 8 July 2026, that company must: (1) identify which transfers of nuclear materials are affected by the new safeguards framework; (2) verify whether its current authorizations are compatible with the new Euratom requirements applicable to Gibraltar; and (3) review its nuclear liability coverage in light of the new liability regime established in the agreement. Non-compliance with Euratom safeguard obligations may result in regulatory sanctions and suspension of transfer authorizations.
What should companies do now?
- Identify if the activity is affected: Determine whether the company has nuclear facilities, materials or activities linked to Gibraltar, directly or indirectly.
- Review safeguard obligations: Analyze internal procedures for control and verification of nuclear materials to check their alignment with Euratom standards now applicable to Gibraltar.
- Audit transfer authorizations: Verify that current authorizations for the movement of nuclear materials to, from or through Gibraltar are compatible with the new legal framework.
- Review nuclear liability coverage: Contact insurers to confirm that nuclear liability policies adequately cover the new regime applicable to Gibraltar.
- Monitor the formal ratification process: The agreement has been in provisional application since 8 July 2026; following the progress of formal ratification may involve additional changes or clarifications to obligations.
- Consult with specialized advisors in nuclear law and Euratom: Given the technical nature and novelty of the framework, it is advisable to have specialized legal advice to assess the concrete impact on each operation.
Frequently asked questions
Why does Gibraltar need a specific nuclear agreement with the EU?
Gibraltar was expressly excluded from the Trade and Cooperation Agreement signed between the EU and the United Kingdom after Brexit. That exclusion created a legal vacuum in atomic energy matters for the territory. Decision (Euratom) 2026/1691 fills that vacuum with a specific agreement under the Euratom Treaty framework, applicable from 8 July 2026.
Since when is it mandatory to comply with this nuclear agreement for Gibraltar?
The agreement has been in provisional application since 8 July 2026, the date of the Commission Decision, one day before its official publication on 9 July 2026. Provisional application means that obligations are enforceable from that date, without waiting for formal ratification.
What specific matters does the Euratom agreement regulate for Gibraltar?
The agreement covers three main areas: (1) nuclear safeguards, that is, control and verification mechanisms for materials and facilities; (2) transfers of nuclear materials to, from and through Gibraltar; and (3) the nuclear liability regime applicable to activities linked to the territory.
Does this agreement affect Spanish companies without facilities in Gibraltar?
It may affect Spanish companies with activity in the Campo de Gibraltar or with commercial, logistics or nuclear material management relationships linked to the territory. The regulatory summary expressly points out the relevance for Spain due to the historical dispute over Gibraltar and geographic proximity to nuclear facilities.
What is the difference between this agreement and the Brexit Trade and Cooperation Agreement?
The Brexit Trade and Cooperation Agreement does not include Gibraltar: the territory was expressly excluded from its scope of application. Decision (Euratom) 2026/1691 creates a parallel and specific agreement for Gibraltar, limited to the field of atomic energy and managed by the European Commission on behalf of Euratom, not the EU in the broad sense.
Official source
Consult the complete regulation in official source
Notice: This article is for informational purposes only and does not constitute legal advice. For specific decisions, consult a qualified professional. Source: https://eur-lex.europa.eu/./legal-content/AUTO/?uri=OJ:L_202601691