Spain · National · Royal Decree

Royal Decree 171/2004 · Coordination of business activities

In force, with published corrections

Current official Spanish title: Real Decreto 171/2004, de 30 de enero, por el que se desarrolla el artículo 24 de la Ley 31/1995, de 8 de noviembre, de Prevención de Riesgos Laborales, en materia de coordinación de actividades empresariales.

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

Implements Article 24 of the Occupational Risk Prevention Law to coordinate prevention when several employers or self-employed people share a workplace.

Who it applies to

Employers and self-employed people working at the same site. It distinguishes cooperation duties from those of the employer controlling the workplace and the principal employer; each role has a separate definition and scope.

Key provisions

Exchange sufficient information on risks from concurrent activities before work starts, when relevant changes occur and in emergencies; serious or very serious risks require written information.

Article 4

The employer controlling the workplace provides information on site-specific risks, preventive measures and emergency measures.

Article 7

Where its own workers perform activities at the site, the employer controlling it must issue the preventive and emergency instructions required by this article.

Article 8

The principal employer oversees contractors and subcontractors carrying out its own activity at its workplace and obtains the prescribed written evidence before work starts.

Article 10

Agree appropriate coordination arrangements before work starts, update them when necessary and inform workers.

Article 12

History and versions

Initial publication: 31/01/2004 · Initial entry into force: 30/04/2004

BOE-A-2004-1848

A correction of errors was published on 10 March 2004.

BOE-A-2004-4348
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

  • The first additional provision adapts coordination to construction sites and refers to Royal Decree 1627/1997. The decree has no transitional provisions; it took effect on 30 April 2004.

    Additional provision first

Official BOE legal relationships

Earlier references (1)
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.

  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 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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