Quick Answer
ADA (Americans with Disabilities Act) and Section 508 both point US organizations toward the same technical target: WCAG accessibility. DOJ's Title II rule now sets specific WCAG 2.1 Level AA deadlines for state and local government websites, April 26, 2027 for governments serving 50,000 or more residents, and April 26, 2028 for smaller governments and special districts. Section 508 requires federal agencies and their contractors to meet the same technical bar. Private businesses are not covered by Title II, but courts and the DOJ treat WCAG 2.1 AA as the accepted evidence standard in ADA Title III lawsuits, and lawsuit filings keep climbing year over year. An ADA and Section 508 accessibility audit combines automated scanning, manual keyboard and screen reader testing, and a WCAG mapping that shows exactly where a site or app falls short and what to fix first.