ADA、Section 508、米国のウェブ訴訟

The Americans with Disabilities Act of 1990 predates the modern web, so it never names a single technical standard for websites.

Because the ADA stayed silent on the web, U.S. courts stepped in, repeatedly treating websites as places of public accommodation under Title III.

In Robles v. Domino, the Ninth Circuit let a blind user sue over an unusable site and app. The Supreme Court declined review, leaving the ruling to stand.

Settlements and rulings kept pointing to one spec, so WCAG 2.x Level AA quietly became the de facto bar U.S. courts expect sites to meet.

Separately, Section 508 of the Rehabilitation Act requires federal agencies and their vendors to make electronic and information tech accessible.

The 2017 508 Refresh formally tied federal compliance to WCAG 2.0 Level AA, aligning government rules with the same standard private suits cite.

Web accessibility lawsuits now number in the thousands each year in the U.S., often led by repeat plaintiffs targeting retail and finance sites.

Many cases start with a demand letter citing specific barriers and asking for a fix plus damages, long before anything reaches a courtroom.

One-line accessibility overlay widgets are widely criticized and have themselves drawn lawsuits, since they rarely fix the underlying code.

The same exposure reaches native mobile apps and kiosks, not just desktop websites, whenever they connect to a covered business.

Legal risk is often what finally funds accessibility work, but real, tested conformance is the only durable way to reduce that risk.

Recall how U.S. law settled on a web standard.

The ADA stayed silent, so courts made WCAG AA the bar, Section 508 binds government, and filings keep rising. Real fixes beat overlays.