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    Spain · National · Royal Decree

    Royal Decree 1154/2020 · Crystalline silica and carcinogenic agents

    Amending instrument not repealed according to the BOE record; consult the current receiving legislation

    Official title in the original Spanish publication: Real Decreto 1154/2020, de 22 de diciembre, por el que se modifica el Real Decreto 665/1997, de 12 de mayo, sobre la protección de los trabajadores contra los riesgos relacionados con la exposición a agentes cancerígenos durante el trabajo.

    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 brought work generating exposure to respirable crystalline silica dust within Royal Decree 665/1997 and updated measures and limit values for carcinogenic agents.

    Who it applies to

    Activities involving exposure to the regulated agents and processes, including crystalline silica generated at work. Application depends on exposure, not merely the sector’s name.

    Key provisions

    It added work involving exposure to respirable crystalline silica dust generated by a work process to the specific preventive regime for carcinogens.

    Sole article: Annex I

    It revised aspects of personal hygiene and personal-data processing. Preventive measures and health records must comply with the safeguards laid down in the regulation.

    Sole article: Articles 6(2) and 9(4)

    It replaced the limit-value annex, adding agents and transitional periods for certain exposures. That historical annex was subsequently amended again.

    Sole article: Annex III

    History and versions

    Initial publication: 23/12/2020 · Initial entry into force: 24/12/2020

    BOE-A-2020-16833

    Published on 23 December 2020 and effective from 24 December 2020. It transposed Directive (EU) 2017/2398. Royal Decrees 427/2021, 395/2022, 612/2024 and 846/2026 subsequently amended the receiving framework; updating it does not in itself constitute wholesale repeal of this instrument.

    Published on 23 December 2020 and effective from 24 December 2020. It transposed Directive (EU) 2017/2398. Royal Decrees 427/2021, 395/2022, 612/2024 and 846/2026 subsequently amended the receiving framework; updating it does not in itself constitute wholesale repeal of this instrument.

    Publication: 23/12/2020 · Effective date: 24/12/2020

    BOE-A-2020-16833

    This instrument’s amendments are incorporated into Royal Decree 665/1997 · Carcinogens, mutagens or reprotoxic substances. The latest published wording of the receiving text checked is dated 2026-10-23; that date belongs to the receiving instrument and is not a new publication of this amending instrument.

    BOE-A-1997-11145
    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
    23/12/202024/12/2020BOE-A-2020-16833Royal Decree 665/1997 · Carcinogens, mutagens or reprotoxic substancesArticle 6, Article 9, Additional provision first, Additional provision second, Final provision first, Annex I, Annex III

    Transitional provisions and application notes

    • The silica transition ended on 31 December 2021; hardwood dust and chromium VI had their own dates. These temporary limits cannot continue to be presented as applicable in 2026.

      Transitions in the 2020 Annex III

    • Mining also requires checking the relevant mining-safety instructions. General carcinogen rules and sector-specific requirements are not freely interchangeable alternatives.

      Sector-specific interaction

    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 (3)

    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 665/1997 · Carcinogens, mutagens or reprotoxic substances

    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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