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    Spain · National · Royal Decree

    Royal Decree 337/2010 · Prevention services and construction safety

    Amending instrument not repealed according to the BOE record; consult the current receiving legislation

    Official title in the original Spanish publication: Real Decreto 337/2010, de 19 de marzo, por el que se modifican el Real Decreto 39/1997, de 17 de enero, por el que se aprueba el Reglamento de los Servicios de Prevención; el Real Decreto 1109/2007, de 24 de agosto, por el que se desarrolla la Ley 32/2006, de 18 de octubre, reguladora de la subcontratación en el sector de la construcción y el Real Decreto 1627/1997, de 24 de octubre, por el que se establecen disposiciones mínimas de seguridad y salud en obras de construcción.

    Original publication and analysisELI 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

    It reformed prevention-service organisation and certain subcontracting and construction requirements. It connects three regulations that must be read together in their current versions.

    Who it applies to

    Employers, prevention services, construction contractors and subcontractors. This record explains the 2010 reform and transitions rather than treating the accreditation regime as frozen at that date.

    Key provisions

    It amended preventive arrangements, resources, accreditation and service activities, as well as aspects of simplified planning and training. Current conditions and thresholds must be checked in the Regulation.

    Article one: preventive organisation

    It amended Articles 11 and 15 of Royal Decree 1109/2007 concerning workforce calculation and the contents of the Subcontracting Book within the sector-specific framework.

    Article two

    It removed Article 18 of Royal Decree 1627/1997 on prior notice and amended Article 19(1) on opening notification. It did not thereby abolish workplace-opening notification duties.

    Article three and repealing provision

    It provided for basic criteria governing prevention services’ healthcare resources. Royal Decree 843/2011 subsequently developed that framework.

    Final provision one

    History and versions

    Initial publication: 23/03/2010 · Initial entry into force: 24/03/2010

    BOE-A-2010-4765

    Published on 23 March 2010 and effective from 24 March 2010. It amended Royal Decrees 39/1997, 1109/2007 and 1627/1997. BOE analysis records Royal Decree 843/2011 as implementing legislation; the Regulation later received further reforms, including accreditation changes in 2015.

    Published on 23 March 2010 and effective from 24 March 2010. It amended Royal Decrees 39/1997, 1109/2007 and 1627/1997. BOE analysis records Royal Decree 843/2011 as implementing legislation; the Regulation later received further reforms, including accreditation changes in 2015.

    Publication: 23/03/2010 · Effective date: 24/03/2010

    BOE-A-2010-4765

    This instrument’s amendments are incorporated into Royal Decree 39/1997 · Prevention services regulations. The latest published wording of the receiving text checked is dated 2025-10-17; that date belongs to the receiving instrument and is not a new publication of this amending instrument.

    BOE-A-1997-1853

    This instrument’s amendments are incorporated into Royal Decree 1109/2007 · Implementing rules for construction subcontracting. The latest published wording of the receiving text checked is dated 2010-03-23; that date belongs to the receiving instrument and is not a new publication of this amending instrument.

    BOE-A-2007-15766

    This instrument’s amendments are incorporated into Royal Decree 1627/1997 · Safety and health on construction sites. The latest published wording of the receiving text checked is dated 2010-03-23; that date belongs to the receiving instrument and is not a new publication of this amending instrument.

    BOE-A-1997-22614

    Royal Decree 843/2011 developed the basic resource-organisation criteria for prevention services’ healthcare activity envisaged in final provision one. Its current record is linked.

    BOE-A-2011-11428
    Incorporation of this amendment into consolidated receiving texts

    The table identifies where this amendment was incorporated. Dates refer to its versions in each receiving text, not a complete history of subsequent amendments to that text.

    PublicationEffective dateOfficial referenceReceiving textAffected provisions
    23/03/201024/03/2010BOE-A-2010-4765Royal Decree 39/1997 · Prevention services regulationsArticle 2, Article 11, Article 15, Article 17, Article 18, Article 19, Article 20, Article 21, Article 23, Article 24, Article 25, Article 26, Article 27, Article 28, Article 29, Article 30, Article 33, Article 37, Transitional provision third, Final provision first
    23/03/201024/03/2010BOE-A-2010-4765Royal Decree 1109/2007 · Implementing rules for construction subcontractingArticle 11, Article 15
    23/03/201024/03/2010BOE-A-2010-4765Royal Decree 1627/1997 · Safety and health on construction sitesArticle 18, Article 19

    Transitional provisions and application notes

    • They governed adaptation by accredited entities, joint services and existing agreements. Those transitional periods are neither permanent extensions nor substitutes for current requirements.

      Transitional provisions one to three

    • It preserved effects of specified earlier training certificates and adjusted references to prior notice. Individual validity depends on the stated conditions and cannot be assumed for every certificate.

      Additional provisions

    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 (4)
    Subsequent references (1)

    Official sources

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

    Sources for the amending instrument

    1. Original publication and analysis
    2. ELI identifier

    The BOE provides no separate consolidated text for this amending instrument. Its original publication and the receiving texts are linked so that the current wording can be consulted.

    Consolidated receiving texts

    1. Royal Decree 39/1997 · Prevention services regulations
    2. Royal Decree 1109/2007 · Implementing rules for construction subcontracting
    3. Royal Decree 1627/1997 · Safety and health on construction sites

    Official BOE sources consulted on 14 November 2026. This amending instrument should be read together with the current receiving legislation. Consolidation is for information; consult the official publication for legal purposes.

    Sabentis editorial summary. The official title and legal sources are retained in Spanish. This is not an official English translation and does not replace the legal text.

    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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