Spain · National · Royal Decree

Royal Decree 400/1996: historical ATEX equipment safety rules

Repealed from 20 April 2016; historical rules and transitional certificates

Official Spanish title: Real Decreto 400/1996, de 1 de marzo, por el que se dicta las disposiciones de aplicación de la Directiva del Parlamento Europeo y del Consejo 94/9/CE, relativo a los aparatos y sistemas de protección para uso en atmósferas potencialmente explosivas.

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

Was Spain’s safety framework for equipment and protective systems in potentially explosive atmospheres under Directive 94/9/EC. This entry supports interpretation of older documentation and the development of categories and essential requirements, without presenting it as current marketing legislation.

Who it applies to

Technical predecessor with an occupational link: equipment for mines and other explosive-atmosphere workplaces, protective systems and safety instructions. It does not replace workplace rules or extend ATEX requirements to expressly excluded equipment.

Key provisions

Distinguished Group I for mining with firedamp or combustible dust and Group II for other locations. Annex I detailed the categories; each item’s intended use and marking had to be checked.

Article 1

Marketing and commissioning required equipment not to compromise safety when properly installed, maintained and used. Demonstrations of non-conforming products required protective measures and visible indication of their status.

Article 2

Annex II essential requirements covered integrated explosion safety, materials, ignition sources, protective systems and instructions. They are relevant to historical records; present-day equipment selection requires the applicable current framework.

Annex II

History and versions

BOE publication: 08/04/1996 · Initial entry into force: 09/04/1996

BOE-A-1996-7800

Published on 8 April 1996 and effective from 9 April 1996. Royal Decree 144/2016 replaced and repealed it from 20 April 2016, subject to the certificate transition described. The consulted consolidation retains the historical wording and repeal note.

Repeal from 20 April 2016 and continuity of specified certificates and decisions under the sole transitional provision.

Publication: 14/04/2016 · Effective date: 20/04/2016

BOE-A-2016-3539
Text versions of the selected OSH provisions

The table includes only versions that introduce or amend the selected OSH subsections. Full article versions changing only other subjects remain in the official sources but are not shown as preventive reforms.

Functions and provisions connected to occupational safety and health are selected; other subjects remain available in the official sources.

PublicationEffective dateOfficial referenceAffected provisions
08/04/199609/04/1996BOE-A-1996-7800Article 1, Article 2, Article 3, Article 5, Article 8, Transitional provision sole, Final provision sole, Annex I, Annex II

Transitional provisions and application notes

  • The transition until 30 June 2003 allowed equipment compliant with the national rules existing on 23 March 1994. That period has ended and is not a current authorisation for new marketing.

    Transitional provision sole
  • Royal Decree 144/2016 preserves certificates and decisions issued under this decree. This does not by itself establish that any older item is suitable for its current conditions of use.

    Transitional provision sole

Official BOE legal relationships

This record covers the history of the selected occupational safety and health provisions. The official analysis also provides the relationships affecting other subjects in the legislation.

Official BOE legal relationships

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. BOE-A-1996-7800
  2. BOE-A-1996-7800
  3. ELI identifier
  4. BOE-A-2016-3539
  5. BOE-A-2016-3539

Official sources checked on 14 November 2026. The original publication and subsequent provisions determine the legal scope; consolidation, where available, is informative. The editorial history focuses on OSH-relevant relationships and does not replace the sources.

Sabentis editorial translation; it is not an official translation and does not replace the official 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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