Web Content Accessibility Guidelines (WCAG) 2.2 is now an approved International Organization for Standardization (ISO) standard: ISO/IEC 40500:2025. It is available free from ISO/IEC 40500:2025 - Information technology — W3C Web Content Accessibility Guidelines (WCAG) 2.2. This standard enables more countries to formally adopt WCAG 2.2. Additional information is in the W3C press release on WCAG 2.2 approved as ISO/IEC international standard and ‘ISO/IEC 40500, EAA, EN 301 549’ section of WCAG 2 Overview.