The HHS Section 504 rule requires WCAG 2.1 AA by May 11, 2027 for organizations with 15 or more employees, and by May 10, 2028 for smaller ones. HHS pushed both dates back one year in May 2026. The requirement itself did not change, and the National Federation of the Blind has sued to bring the original dates back.
Hospital sites are large, and the riskiest parts are rarely the pages marketing controls. Find-a-doctor tools, bill pay, price transparency files, patient portals and online check-in are usually vendor products, and the rule covers them because you provide them through a contract.
Public and county hospitals carry Title II as well: April 26, 2027 for governments of 50,000 people or more, April 26, 2028 for smaller ones.