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EN 301-549 GUIDE

EN 301-549 Compliance Guide

How European organizations and public sector bodies use Sienna to meet the EN 301-549 accessibility standard.

Updated on 3/24/2026

EN 301-549 Compliance Guide

EN 301-549 is the European standard for “Accessibility requirements suitable for public procurement of ICT products and services in Europe.” It is the cornerstone of the EU Web Accessibility Directive.

The Standard

EN 301-549 is heavily aligned with WCAG 2.1 Level AA, but it includes additional requirements for non-web software, documentation, and support services.

How Sienna Supports EU Organizations

Public sector bodies across the European Union utilize Sienna to rapidly deploy the User Interface Layer of accessibility:

  1. WCAG Harmonization: By addressing criteria like 1.4.3 (Contrast) and 1.4.4 (Resize), Sienna helps satisfy the core web requirements of EN 301-549.
  2. Multilingual Support: Our instant UI translation allows users across the EU to interact with accessibility tools in their native language.
  3. Keyboard and Screen Reader Readiness: Sienna enhances the visibility of focus indicators and provides a lightweight screen reader for those without dedicated assistive software.

The EU Web Accessibility Directive

If you are a public sector organization in the EU, you are required to:

  • Be Accessible: Meet the EN 301-549 standard.
  • Accessibility Statement: Provide a detailed statement about your site’s status.
  • Feedback Mechanism: Allow users to report barriers (Sienna’s Contact Page serves this purpose).

Implementation

  1. Inject: Add the Sienna script to your site.
  2. Localize: Use our Customize tool to set the default language to your region’s preference.
  3. Declare: Update your Accessibility Statement to include Sienna’s capabilities.
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