EU Accessibility Act vs ADA and Section 508

All three frameworks reward the same basic engineering discipline: semantic structure, keyboard support, perceivable media, clear labels and instructions, robust forms, and documented testing. That is why WCAG based testing often remains a shared execution layer across jurisdictions.

The divergence appears at the legal edge. The EU Accessibility Act names covered product and service categories, creates manufacturer and importer duties for products, uses conformity style documentation for products, and gives market surveillance authorities power to require corrective action or restrict products. Section 508 is driven by procurement relationships, and ADA exposure is usually framed around equal access and discrimination risk rather than CE style documentation.

A workable multinational model has three layers. First, one shared engineering baseline for components, user journeys, and assistive technology testing. Second, a jurisdiction layer for scope, timelines, and evidence artefacts. Third, a governance layer that decides what gets published externally and what gets retained for procurement, customer diligence, or regulatory review.

For EU work, add explicit records for in-scope categories, EN 301 549 use, product versus service obligations, and transitional decisions. For US work, keep procurement artefacts and customer facing statements aligned to the relevant contract or litigation risk. This preserves reuse while avoiding false equivalence.