State and local governments will often post documents on their websites using Portable Document Format (PDF). But PDF documents, or those in other image based formats, are often not accessible to blind people who use screen readers and people with low vision who use text enlargement programs or different color and font settings to read computer displays.
In a society in which business is increasingly conducted online, excluding businesses that sell services through the Internet from the ADA would ‘run afoul of the purposes of the ADA’” in that it would prevent “‘individuals with disabilities [from] fully enjoy[ing] the goods, services, privileges, and advantages, available indiscriminately to other members of the general public.
The statement that “noncompliance with a voluntary technical standard for website accessibility does not necessarily indicate noncompliance with the ADA” is new and significant.  It is a recognition that a website may be accessible and usable by the blind without being fully compliant with the privately developed Web Content Accessibility Guidelines (WCAG) 2.0 or 2.1.  The statement confirms what some courts have said so far:  That the operative legal question in a website accessibility lawsuit is not whether the website conforms with WCAG, but whether persons with disabilities are able to access to a public accommodation’s goods, services, and benefits through the website, or some alternative fashion.