GlossaryStandards & accessibility
EN 301 549
European harmonized accessibility standard for ICT (information and communication technology), incorporating WCAG 2.1 AA and additional functional requirements.
EN 301 549 is the standard referenced by the EU's Web Accessibility Directive and the European Accessibility Act. It applies to public-sector websites and apps in EU member states and increasingly to private-sector products covered by the EAA.
For captioning, EN 301 549 incorporates WCAG 2.1 AA's requirements (1.2.2 prerecorded, 1.2.4 live) plus additional ICT-specific provisions around real-time communication.
EU-based event organizers and vendors selling captioning to EU customers should expect EN 301 549 conformance as part of procurement and accessibility-statement requirements.