EdLaw int/eu/web-accessibility/ACCESSIBILITY-REQUIREMENTS.md

language: en · last checked: 2026-09-06

Accessibility requirements and presumption of conformity

The substantive duty: websites and mobile applications must be perceivable, operable, understandable and robust; the disproportionate-burden derogation and how it must be assessed; and the presumption of conformity for content meeting harmonised standards — the hook through which EN 301 549 becomes the operative technical specification.

Article 4 — Requirements for the accessibility of websites and mobile applications

Verbatim from EUR-Lex (Directive (EU) 2016/2102, OJ text 32016L2102), via the Publications Office Cellar API.

Member States shall ensure that public sector bodies take the necessary measures to make their websites and mobile applications more accessible by making them perceivable, operable, understandable and robust.

Article 5 — Disproportionate burden

Verbatim from EUR-Lex (Directive (EU) 2016/2102, OJ text 32016L2102), via the Publications Office Cellar API.

1. Member States shall ensure that public sector bodies apply the accessibility requirements set out in Article 4 to the extent that those requirements do not impose a disproportionate burden on the public sector bodies for the purposes of that Article.

2. In order to assess the extent to which compliance with the accessibility requirements set out in Article 4 imposes a disproportionate burden, Member States shall ensure that the public sector body concerned takes account of relevant circumstances, including the following:

3. Without prejudice to paragraph 1 of this Article, the public sector body concerned shall perform the initial assessment of the extent to which compliance with the accessibility requirements set out in Article 4 imposes a disproportionate burden.

4. Where a public sector body avails itself of the derogation provided for in paragraph 1 of this Article for a specific website or mobile application after conducting an assessment as referred to in paragraph 2 of this Article, it shall explain, in the accessibility statement referred to in Article 7, the parts of the accessibility requirements that could not be complied with and shall, where appropriate, provide accessible alternatives.

Article 6 — Presumption of conformity with the accessibility requirements

Verbatim from EUR-Lex (Directive (EU) 2016/2102, OJ text 32016L2102), via the Publications Office Cellar API.

1. Content of websites and mobile applications that meets harmonised standards or parts thereof the references to which have been published by the Commission in the Official Journal of the European Union in accordance with Regulation (EU) No 1025/2012 shall be presumed to be in conformity with the accessibility requirements set out in Article 4 that are covered by those standards or by parts thereof.

2. Where no references to the harmonised standards referred to in paragraph 1 of this Article have been published, content of mobile applications that meets the technical specifications or parts thereof shall be presumed to be in conformity with the accessibility requirements set out in Article 4 that are covered by those technical specifications or by parts thereof.

The Commission shall adopt implementing acts establishing the technical specifications referred to in the first subparagraph of this paragraph. Those technical specifications shall meet the accessibility requirements set out in Article 4 and shall ensure at least a level of accessibility equivalent to that ensured by European standard EN 301 549 V1.1.2 (2015-04).

The implementing acts referred to in the second subparagraph of this paragraph shall be adopted in accordance with the examination procedure referred to in Article 11(3). The first such implementing act shall be adopted, where no references to the harmonised standards referred to in paragraph 1 of this Article have been published, by 23 December 2018.

3. Where no references to the harmonised standards referred to in paragraph 1 of this Article have been published, content of websites that fulfils the relevant requirements of European standard EN 301 549 V1.1.2 (2015-04) or parts thereof shall be presumed to be in conformity with the accessibility requirements set out in Article 4 that are covered by those relevant requirements or by parts thereof.

Where no references to the harmonised standards referred to in paragraph 1 of this Article have been published, and in the absence of the technical specifications referred to in paragraph 2 of this Article, content of mobile applications that fulfils the relevant requirements of European standard EN 301 549 V1.1.2 (2015-04) or parts thereof shall be presumed to be in conformity with the accessibility requirements set out in Article 4 that are covered by those relevant requirements or by parts thereof.

4. The Commission is empowered to adopt delegated acts in accordance with Article 10 in order to amend paragraph 3 of this Article by updating the reference to European standard EN 301 549 V1.1.2 (2015-04) so as to make reference to a more recent version of that standard, or to a European standard replacing it, where that version or standard meets the accessibility requirements set out in Article 4 and ensures at least a level of accessibility equivalent to that ensured by European standard EN 301 549 V1.1.2 (2015-04).

Sources

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