About the Americans with Disabilities Act
A starting-point overview of the ADA — its history, purpose, who it protects, and who enforces it. For the full statutory language, see the complete ADA text; for a deep plain-English walkthrough, see our comprehensive guide.
History at a glance
Civil Rights Act
Establishes the legal framework for federal civil rights protection — later used as a model for the ADA.
Rehabilitation Act §504
Bars disability discrimination by federal agencies and federally funded programs. First major disability rights law.
ADA signed
President George H. W. Bush signs the Americans with Disabilities Act into law on July 26, 1990. Effective dates phased 1992–1994.
ADA Amendments Act
Congress broadens the definition of "disability" in response to narrow Supreme Court interpretations.
2010 ADA Standards
DOJ publishes the revised 2010 Standards for Accessible Design (the measurements consultants use today).
Website enforcement
DOJ confirms websites of public accommodations fall under Title III — a wave of web-accessibility lawsuits follows.
Who the ADA protects
The ADA protects individuals with a disability, defined as:
- A physical or mental impairment that substantially limits one or more major life activities, OR
- A record of such an impairment, OR
- Being regarded as having such an impairment.
"Major life activities" include: caring for oneself, performing manual tasks, seeing, hearing, eating, sleeping, walking, standing, lifting, bending, speaking, breathing, learning, reading, concentrating, thinking, communicating, and working — plus major bodily functions (immune, digestive, neurological, respiratory, reproductive, etc.).
Who enforces it
Title I (employment)
U.S. Equal Employment Opportunity Commission (EEOC)
Titles II & III
U.S. Department of Justice (DOJ Civil Rights Division) + private lawsuits
Title IV (telecom)
U.S. Federal Communications Commission (FCC)
Transportation (Title II)
U.S. Department of Transportation (DOT)
Private right of action
Under Title III, individuals can sue businesses directly — without first going through the DOJ. This is why you see so many "serial plaintiff" cases: a single attorney can file dozens of website-accessibility complaints in a year. Title I (employment) requires an EEOC charge first.
Next steps
- ADA Basics for Businesses — what compliance looks like in practice
- Comprehensive ADA breakdown — each title, deeply
- The full statutory text of the ADA
- Free self-audit checklist