ADA stands for the Americans with Disabilities Act, a federal civil rights law enacted in 1990 that prohibits discrimination based on disability in employment, state and local government services, businesses open to the public, and telecommunications. It gives people with disabilities enforceable rights to equal access, requires employers and businesses to remove barriers, and sets out how to file a complaint when they don’t.
The law is organized into five sections called Titles, each covering a different area of public life and enforced by a different federal agency. Understanding the ADA means knowing three things: whether you qualify as a person with a disability, whether the employer or business is covered, and what the law actually requires them to do.
Who Qualifies as a Person With a Disability
The ADA uses a three-part test. You are covered if any one of these applies:
- You have a physical or mental impairment that substantially limits one or more major life activities, such as walking, seeing, hearing, breathing, learning, or the functioning of a major bodily system.
- You have a documented history of such a condition, even if it is currently in remission. Cancer survivors remain protected on this basis.
- An employer or business treats you as though you have a disability, whether or not you actually do.
All three categories carry the force of law under 42 U.S.C. ยง 12102.1Office of the Law Revision Counsel. 42 U.S. Code 12102 – Definition of Disability
For roughly the first 18 years the ADA was on the books, courts read “substantially limits” so narrowly that many people with serious conditions couldn’t clear the threshold. The ADA Amendments Act of 2008 reversed that. It directed courts to interpret the phrase broadly, confirmed that conditions in remission or that flare periodically still qualify when active, and required that the effects of treatments like medication or hearing aids be ignored when assessing limitation.2ADA.gov. ADA Amendments Act of 2008 Questions and Answers The result is that ADA cases now focus less on whether someone is “disabled enough” and more on whether the covered entity met its obligations.
Not every condition qualifies. Current illegal drug use is explicitly excluded, so an employer can refuse to hire or can fire someone who is actively using illegal drugs. Former addiction can qualify if the person is in recovery or a supervised treatment program.3U.S. Commission on Civil Rights. Sharing the Dream: Is the ADA Accommodating All? Temporary, minor conditions generally fall outside coverage.
Who Has to Follow the ADA
The ADA reaches three broad groups, and each has different obligations.
Private employers with 15 or more employees are covered by the employment rules.4U.S. Equal Employment Opportunity Commission. Small Employers And Reasonable Accommodation Employers with fewer than 15 employees aren’t covered by the federal employment provisions, though many state laws pick up smaller employers.
State and local government entities are covered no matter how small. That includes agencies, courts, public schools, public transit systems, and special-purpose districts.5Office of the Law Revision Counsel. 42 USC 12132 – Discrimination
Private businesses that serve the public, called “places of public accommodation,” are also covered. Hotels, restaurants, theaters, doctors’ offices, retail stores, banks, and gyms all fit. They must remove physical barriers where doing so is readily achievable and must ensure their policies don’t exclude people with disabilities.6Office of the Law Revision Counsel. 42 USC 12182 – Prohibition of Discrimination by Public Accommodations
Religious organizations and the entities they control sit outside the public accommodation rules entirely. That exemption covers houses of worship, religiously affiliated schools, hospitals, day care centers, and thrift stores, and it applies whether the specific activity is religious or secular.7Office of the Law Revision Counsel. 42 USC 12187 – Exemptions for Private Clubs and Religious Organizations
The Five Titles of the ADA
Title I: Employment
Title I bars covered employers from discriminating against qualified applicants or employees in hiring, firing, pay, promotions, training, and other terms of employment. A “qualified” individual is someone who can perform the essential functions of the job with or without reasonable accommodation. Employers must provide accommodations unless doing so would create undue hardship.8U.S. Equal Employment Opportunity Commission. Titles I and V of the Americans with Disabilities Act of 1990 The Equal Employment Opportunity Commission enforces Title I.
Title II: State and Local Government
Title II covers everything state and local governments do, from issuing driver’s licenses to running public transit. Buildings, vehicles, programs, and now digital services all must be accessible. The Department of Justice enforces Title II.
Title III: Public Accommodations
Title III requires private businesses that serve the public to make their goods and services accessible. Existing buildings need barriers removed where the fix is easily accomplished without major expense; new construction must be fully accessible from the start. When a business can’t remove a barrier, it has to offer an alternative way to provide the service.6Office of the Law Revision Counsel. 42 USC 12182 – Prohibition of Discrimination by Public Accommodations
Title IV: Telecommunications
Title IV requires telephone and internet-based communication companies to provide relay services so that people with hearing or speech disabilities can communicate over the phone. Operators translate between voice and text in real time. The Federal Communications Commission enforces Title IV.9Federal Communications Commission. Title IV of the Americans with Disabilities Act
Title V: Miscellaneous Provisions
Title V includes protections that cut across the whole law, most importantly the ban on retaliation. No employer or business can punish you for filing an ADA complaint, taking part in an investigation, or opposing a discriminatory practice.10Office of the Law Revision Counsel. 42 USC 12203 – Prohibition Against Retaliation and Coercion
Reasonable Accommodations at Work
Reasonable accommodation is where Title I becomes practical. When you need a workplace adjustment because of a disability, your employer must work with you to find a solution unless the cost or disruption would be genuinely unreasonable for the business. That back-and-forth is often called the interactive process.11U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship Under the ADA
Common accommodations include modified schedules, restructuring non-essential job duties, specialized equipment, physical changes to a workspace, or reassignment to a vacant position. You don’t need to name the perfect solution when you ask. Describing the barrier is enough to start the conversation.
The “undue hardship” defense is the employer’s escape valve, and the bar is high. A $20 screen magnifier isn’t a hardship for a midsize company. Courts weigh the cost against the employer’s overall resources, the nature of the business, and the operational impact. Most accommodations turn out to cost very little. The harder fights are usually over schedule changes or remote work, where the pushback is disruption rather than dollars.
Service Animals and Public Access
Under federal regulations, a service animal is a dog individually trained to perform specific tasks for someone with a disability. Guiding a person who is blind, alerting someone who is deaf, pulling a wheelchair, and interrupting self-harming behavior all count as trained tasks. Miniature horses can qualify under a separate provision; no other species do.
Businesses and government agencies must allow service animals wherever the public is normally permitted. When it isn’t obvious that a dog is a service animal, staff may ask only two questions: whether the animal is required because of a disability, and what task it has been trained to perform. They cannot demand documentation, require a demonstration, or ask about the person’s disability.12ADA.gov. ADA Requirements: Service Animals
Emotional support animals are different. They provide comfort through companionship but are not trained to perform specific tasks, and the ADA does not require businesses or government agencies to admit them. Separate state laws and federal housing rules may apply, but those protections don’t reach restaurants, stores, or other public accommodations under the ADA.
Websites and Mobile Apps
The ADA now reaches digital services. In 2024 the Department of Justice finalized a rule requiring state and local government websites and mobile applications to conform to the Web Content Accessibility Guidelines (WCAG) 2.1, Level AA. That standard covers screen reader compatibility, keyboard navigation, video captioning, and color contrast.13ADA.gov. Nondiscrimination on the Basis of Disability; Accessibility of Web Information and Services of State and Local Government Entities
An April 2026 interim rule extended the deadlines. Government entities serving populations of 50,000 or more now have until April 26, 2027. Smaller entities and special-purpose districts have until April 26, 2028. Healthcare organizations receiving federal HHS funding face a separate deadline of May 11, 2026. Narrow exceptions apply to archived content, pre-existing PDFs, and third-party social media posts not created under a contract.
What You Can Recover
Remedies under the ADA depend on which Title applies.
For employment discrimination under Title I, an employee or applicant can seek compensatory damages for emotional harm and punitive damages for egregious conduct. Federal law caps the combined total based on employer size, from $50,000 for employers with 15 to 100 employees up to $300,000 for employers with more than 500. Those caps were set in 1991 and have not been adjusted for inflation.14Office of the Law Revision Counsel. 42 USC 1981a – Damages in Cases of Intentional Discrimination in Employmenta> Back pay, front pay, and attorney’s fees sit on top of the caps, and the EEOC can order reinstatement or other equitable relief.
For public accommodation claims under Title III, individuals cannot recover monetary damages under federal law. The remedies are a court order requiring the business to fix the barrier, modify a policy, or provide an auxiliary aid, plus attorney’s fees for a prevailing plaintiff.15Office of the Law Revision Counsel. 42 USC 12188 – Enforcement Some state accessibility laws do allow damages, so the federal limitation isn’t always the full picture. The Department of Justice, when it brings its own enforcement action, can seek both damages for individuals harmed and civil penalties against the business.
Filing Deadlines
The ADA has strict deadlines that can permanently bar a claim if you miss them.
- For employment claims, you have 180 days from the discriminatory act to file a charge with the EEOC. If your state or locality has its own anti-discrimination agency, the deadline extends to 300 days.16U.S. Equal Employment Opportunity Commission. Time Limits for Filing a Complaint
- Once the EEOC issues a Notice of Right to Sue, you have exactly 90 days to file a lawsuit in federal court. Miss that window and the right to sue is gone regardless of how strong the case is.17U.S. Equal Employment Opportunity Commission. Filing a Lawsuit
- Title III private lawsuits have no deadline set by the ADA itself. Federal courts borrow the most analogous state deadline, so the filing window varies by state.
The employment clock starts on the date the discrimination happened, not the date you realized it was discriminatory. If your employer denied a reasonable accommodation request on March 1, the deadline runs from March 1.
How to File a Complaint
Employment discrimination claims go through the EEOC. You can start on the EEOC Public Portal by submitting an online inquiry; agency staff then interview you and draft the formal charge based on the information you provide, which you review and sign through your online account.18U.S. Equal Employment Opportunity Commission. How to File a Charge of Employment Discrimination You can also file in person at a field office or by mail. There is no fee. The EEOC may offer mediation, and if the case isn’t resolved, the agency investigates and eventually issues a Notice of Right to Sue.
Complaints about inaccessible businesses, government buildings, or public services go to the Department of Justice Civil Rights Division. You can file online through the ADA.gov complaint portal or by mail to the U.S. Department of Justice, Civil Rights Division, 950 Pennsylvania Avenue NW, Washington, DC 20530.19ADA.gov. File a Complaint Include the name of the business or agency, what happened, when it happened, and who was involved. There is no fee.
Protection Against Retaliation
Filing a complaint or asking for an accommodation can feel risky when you depend on the employer or business. The ADA addresses that directly: it is illegal for any covered entity to retaliate against you for exercising your rights, whether by firing, demoting, or disciplining an employee, or by intimidating anyone who took part in an ADA investigation.10Office of the Law Revision Counsel. 42 USC 12203 – Prohibition Against Retaliation and Coercion Retaliation claims carry the same remedies as the underlying discrimination claim, so an employer who retaliates faces the same exposure as one who discriminated in the first place.