[1] Accessibility Conformance Testing (ACT) Rules Format 1.0 () <https://www.w3.org/TR/act-rules-format/>
[2] Accessibility Conformance Testing (ACT) Rules Format 1.0 () <https://www.w3.org/TR/2017/WD-act-rules-format-1.0-20170912/>
[3] Accessibility Conformance Testing (ACT) Rules Format 1.0 () <https://www.w3.org/TR/2018/WD-act-rules-format-1.0-20180308/>