Success Criterion 1.1.1 "Non-text Content" is a Level A requirement under the "perceivable" principle of WCAG 2.2. EN 301 549 clause 9.1.1.1 maps this criterion for procurement conformance.
Correct: <img src="chart.png" alt="Q3 retention: 84%">. Incorrect: alt="" on a chart that carries meaning, or alt="chart.png" describing the file not the content. Decorative images must have EMPTY alt — giving them text forces screen readers to announce noise.
Engine coverage: partially automated (audit tier 1/2) — automated findings flag candidates; a clean VPAT claim still needs the documented manual check.
Last reviewed 2026-11-02 — generated from the engine’s WCAG criterion registry.
Reading up on WCAG 1.1.1? The engine verifies this surface from the perimeter — live on sovereign EU/UK partitions.