https://www.w3.org/WAI/standards-guidelines/act/
Accessibility Conformance Testing (ACT) Overview | Web Accessibility Initiative (WAI) | W3C
Accessibility resources free online from the international standards organization: W3C Web Accessibility Initiative (WAI).
conformance testing actwebwai
https://www.w3.org/TR/2026/REC-act-rules-format-1.1-20260205/
Accessibility Conformance Testing (ACT) Rules Format 1.1
conformance testing actrules