No single federal deadline applies to every private U.S. business in the same way as the ADA Title II web rule for state and local governments.
ADA Title III concerns public accommodations. DOJ guidance states that inaccessible website features can limit access to goods, services and privileges offered by businesses open to the public. That does not mean there is one universal federal date, such as April 26, 2027, that applies to all private businesses under Title III.
Different legal, contractual, state-law, procurement and risk contexts may apply. Access Audit Lab can evaluate technical accessibility barriers against an agreed standard and scope, but does not give legal conclusions.
What businesses should not assume
Do not assume that WCAG is a statutory certification for every private website. Do not assume that the ADA Title II 2027 and 2028 dates automatically apply to Title III businesses. Do not assume that the absence of one universal date means technical accessibility can be ignored.
Practical technical preparation
Private-sector teams usually start with a WCAG-based audit of key templates and workflows: navigation, product discovery, forms, authentication, checkout, documents, media, modals, customer support and account management. The output should identify barriers, user impact, remediation guidance and retest status.
Related: ADA Title II deadline article and what WCAG deadlines do and do not mean.