ACT Rules Format 1.1 is a Web Standard (W3C Recommendation)

Date: 05 February 2026

Accessibility Conformance Testing (ACT) Rules Format 1.1 is now a web standard (W3C Recommendation). ACT Rules Format defines a format for writing accessibility test rules. The test rules can be used for developing automated testing tools and manual testing methodologies. For an introduction to ACT Rules, see Accessibility Conformance Testing (ACT) Overview.

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