What is the minimum HTML standard for accessibility according to WCAG 2.0?

The minimum HTML standard for accessibility according to the Web Content Accessibility Guidelines (WCAG) 2.0 is Level A. This level sets the foundational criteria that all web content must meet to be considered accessible. It includes basic requirements that aim to eliminate barriers for individuals with disabilities.

Level A encompasses critical aspects such as providing text alternatives for non-text content, ensuring that users can navigate and access content using a keyboard, and ensuring that webpages do not contain elements that could cause seizures. By meeting these Level A criteria, web developers establish a baseline level of accessibility that is essential for ensuring access to information for those with various disabilities.

Higher levels, such as Level AA and Level AAA, involve more stringent and comprehensive accessibility criteria, but Level A is the lowest standard that must be satisfied to ensure that basic accessibility needs are met. Since WCAG 2.0 defines accessibility in tiers, it clearly indicates that Level A is the starting point for compliance.