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    Spain · National · Royal Decree

    Royal Decree 681/2003 · Explosive atmospheres at work

    In force; no subsequent express amendments recorded

    Current official Spanish title: Real Decreto 681/2003, de 12 de junio, sobre la protección de la salud y la seguridad de los trabajadores expuestos a los riesgos derivados de atmósferas explosivas en el lugar de trabajo.

    Original publication and analysisConsolidated textELI identifier
    On this page
    1. What it regulates
    2. Who it applies to
    3. Key provisions
    4. History and versions
    5. Transitional provisions and application notes
    6. Official BOE legal relationships
    7. Official sources
    8. Explore the concepts in Sabentis Explore

    What it regulates

    Sets requirements for assessment, prevention, zone classification and documentation protecting workers from explosive atmospheres.

    Who it applies to

    Workplaces where exposure to explosive atmospheres may occur. Article 1 excludes specified medical treatment, regulated gas use, explosives or unstable substances, extractive industries and transport under specific regimes; transport designed for potentially explosive atmospheres is not excluded.

    Key provisions

    Prioritise preventing explosive atmospheres; where this is not possible, prevent ignition and mitigate explosion effects, reviewing controls after significant changes.

    Article 3

    Assess the overall likelihood and duration of explosive atmospheres, ignition sources, installations, substances, processes, interactions and foreseeable consequences.

    Article 4

    Classify zones under Annex I, apply the minimum requirements in Annex II and mark access points where necessary under Annex III.

    Article 7

    Prepare the explosion protection document before work begins and update it after major changes; it must demonstrate assessment, controls, zones and safe use, including coordination under Article 6.

    Article 8

    History and versions

    Initial publication: 18/06/2003 · Initial entry into force: 30/06/2003

    BOE-A-2003-12099

    The BOE record checked contains no subsequent relationships. This does not rule out complementary legislation or implied changes.

    All text versions recorded by the BOE

    Publication and effective dates are different. The table retains the dates and provisions of each recorded text version; it does not treat future transitional deadlines as requirements already applicable.

    PublicationEffective dateOfficial referenceAffected provisions
    18/06/200330/06/2003BOE-A-2003-12099Preamble, Chapter I, Article 1, Article 2, Chapter II, Article 3, Article 4, Article 5, Article 6, Article 7, Article 8, Additional provision sole, Transitional provision sole, Final provision first, Final provision second, Final provision third, Signature, Annex I, Annex II, Annex III

    Transitional provisions and application notes

    • Workplaces used before 30 June 2003 had to adapt within three years. That historical period did not cover alterations, extensions or remodelling after that date.

      Transitional provision sole

    Official BOE legal relationships

    Relationships may affect only specific provisions. They do not by themselves determine the status of the whole instrument: consult its history and application notes.

    Earlier references (2)

    Official sources

    Official sources checked on 14/11/2026. Updating a database record does not by itself mean that the legislation has been amended.

    1. Original publication and analysis
    2. Consolidated text
    3. ELI identifier

    Based on data from Spain’s Official State Gazette (BOE). Consolidated text is informational: consult the official publication for legal purposes. The history includes all subsequent relationships in the retrieved BOE record, without guaranteeing coverage of all judgments, complementary legislation or implied changes.

    The official title is retained in Spanish. English and Catalan texts are editorial summaries, not official translations of the legislation.

    Editorial information

    Publication date: 14 November 2026.

    Editorial responsibility: Sabentis editorial team.

    Editorial review by Pablo RodríguezLinkedIn

    Executive Vice President of the International ORP Foundation and Chief Financial Officer of Sabentis.

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