W3C:

2005-07-11: The Evaluation and Repair Tools Working Group has released the First Public Working Draft of Requirements for the Evaluation and Report Language (EARL) 1.0. EARL expresses test results in a vendor-neutral and platform-independent format and is used to exchange test results between Web accessibility evaluation tools. EARL also provides a reusable vocabulary for Web quality assurance and validation. Read about the Web Accessibility Initiative. (News archive)