Spain · National · Royal Decree

Royal Decree 374/2001 · Chemical agents at work

In force, as amended

Current official Spanish title: Real Decreto 374/2001, de 6 de abril, sobre la protección de la salud y seguridad de los trabajadores contra los riesgos relacionados con los agentes químicos durante el trabajo.

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 out how to identify, assess and control risks from hazardous chemical agents, including specific controls, health surveillance and emergency arrangements.

Who it applies to

Activities involving hazardous chemical agents present at the workplace or resulting from the work, subject to Article 1’s rules on interaction with other legislation.

Key provisions

Assess hazardous properties, exposure, quantities, working conditions and combined effects; measure inhalation exposure unless the article’s sufficient-justification exception applies.

Article 3

Prioritise substitution; where it does not eliminate risk, apply technical controls, collective protection and work organisation before personal protection.

Article 5

Arrange health surveillance according to the risk and the article’s conditions, including the situations where it is mandatory.

Article 6

Plan responses to accidents, incidents and emergencies, including resources, training, exercises and appropriate information for response services.

Article 7

History and versions

Initial publication: 01/05/2001 · Initial entry into force: 05/05/2001

BOE-A-2001-8436

Royal Decree 846/2026 amended Annexes I and II and added the sole transitional provision. It introduced diisocyanate limits, with a transition until 31 December 2028, and moved the specific lead limits out of these annexes.

Publication: 23/10/2026 · Effective date: 24/10/2026

BOE-A-2026-22080

Royal Decree 598/2015 amended Articles 2.5(a) and (b), 3.1(a) and 9.2(d).

Publication: 04/07/2015 · Effective date: 05/07/2015

BOE-A-2015-7458

A correction of printing errors was published on 22 June 2001.

BOE-A-2001-11960

A correction of printing errors was published on 30 May 2001.

BOE-A-2001-10162
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.

Transitional provisions and application notes

  • From 24 October 2026 until 31 December 2028, diisocyanates have transitional limits of 10 µg NCO/m³ for daily exposure and 20 µg NCO/m³ for short-term exposure. The Annex I values of 6 and 12 respectively apply afterwards unless the legislation changes.

    Transitional provision sole
  • The 2026 reform leaves Annex II empty and removes the lead limits from these annexes: the specific rules are in Royal Decree 665/1997. This does not remove protection against lead.

    Annex II

Official BOE legal relationships

Earlier references (6)
Subsequent references (4)

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
  4. BOE-A-2026-22080

Based on data from Spain’s Official State Gazette (BOE). Consolidated text is informational: consult the official publication for legal purposes. The history includes every subsequent relationship in the retrieved BOE record, but does not guarantee coverage of all judgments 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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