What is the Americans with Disabilities Act (ADA)?

Expert reviewed by James Emmett, MS

At a glance
The Americans with Disabilities Act (ADA) protects people with disabilities from discrimination.
The ADA applies to the government, schools, and most businesses.
Employers must provide reasonable accommodations that break down barriers for employees with disabilities.
The Americans with Disabilities Act (ADA) is a federal civil rights law. It protects people with disabilities from discrimination in most settings.
The law applies to the government, schools, and employers with 15 or more employees. It also applies to anyone who offers goods and services to the public. This includes restaurants, stores, and even websites.
The ADA is very broad in who it covers. The law protects anyone with a physical or mental condition that “substantially limits one or more major life activities.”
Major life activities include things like seeing, hearing, eating, sleeping, or walking. But there are other activities that fall into this category, including:
- Learning
- Reading
- Concentrating
- Thinking
- Communicating
- Working
- Caring for yourself
- Interacting with others
A condition doesn’t have to be severe to qualify for protection under the ADA. But it must have a significant impact on a person’s ability to do these activities, compared to most people in society.
Dive deeper
Conditions the ADA covers
Reasonable accommodations under the ADA
The ADA in workplaces
The ADA in schools
The ADA for goods and services offered to the public
What to do if an organization isn’t following the ADA
ADA fact sheetPDF
About the author

About the author
Andrew M.I. Lee, JD is an editor and attorney who strives to help people understand complex legal, education, and parenting issues.
Reviewed by
Reviewed by
James Emmett, MS is the lead workplace strategist for Understood, supporting our efforts to create more inclusive workplaces for people with disabilities.