Reasonable accommodations under the Americans with Disabilities Act are changes to a job, a government service, or a public business that give a person with a disability equal access. ADA accommodations can be physical, like a ramp or an ergonomic chair; procedural, like a modified schedule or a policy exception; or communicative, like a sign language interpreter or a screen reader. Who has to provide them, and what they have to provide, depends on the setting and the specific barrier you face.
Who Qualifies for an Accommodation
You qualify if you have a physical or mental impairment that substantially limits one or more major life activities, if you have a record of such an impairment, or if you are regarded as having one. Major life activities include walking, seeing, hearing, breathing, learning, concentrating, and communicating, along with major bodily functions like the immune system, neurological function, and digestion.1Office of the Law Revision Counsel. 42 U.S. Code 12102 – Definition of Disability
The “record of” prong protects people who once had a qualifying impairment but have since recovered or gone into remission. A cancer survivor who completed treatment years ago remains covered if an employer treats them differently because of that medical history. The “regarded as” prong catches situations where the discrimination is based on a perceived disability, even if no actual limitation exists.
Two rules about how “substantially limits” gets applied matter in practice. Conditions that flare up and go into remission, like epilepsy or multiple sclerosis, count as disabilities if they would substantially limit a major life activity when active. And the helpful effects of medication, hearing aids, prosthetics, and similar measures are not considered when deciding whether you have a qualifying disability.2U.S. Department of Justice. ADA Amendments Act of 2008 – Questions and Answers Someone whose seizures are controlled by medication is still protected.
Where the ADA Applies
The accommodation rules come from three separate parts of the statute, and knowing which one governs your situation tells you what to expect.
Title I covers employment. It applies to private employers, state and local governments, employment agencies, and unions with 15 or more employees. If your employer has fewer than 15 workers, Title I does not apply, though a state disability discrimination law might.3U.S. Equal Employment Opportunity Commission. The ADA – Your Responsibilities as an Employer
Title II covers state and local government programs, services, and activities regardless of size. Public schools, courts, transit systems, and government offices all fall under it.
Title III covers private businesses open to the public: restaurants, hotels, retail stores, theaters, doctors’ offices, and private schools. There is no employee-count minimum.
In an employment case, the ADA only requires accommodation of a “qualified individual,” meaning someone who can perform the essential functions of the job with or without accommodation.4Office of the Law Revision Counsel. 42 U.S.C. 12112 – Discrimination Essential functions are the core duties of the role, not every task on a job description. Whether a duty is essential depends on the employer’s judgment, how much time is spent on it, what happens if no one does it, and how past employees actually spent their time. An accommodation can reshape how you do a job but cannot eliminate its core purpose. A delivery driver can request hand controls for the vehicle but cannot be excused from driving.
What Reasonable Accommodations Look Like
The law lists examples that include making existing facilities accessible, restructuring a job, providing modified work schedules, reassigning someone to a vacant position, acquiring or modifying equipment, and providing qualified readers or interpreters.5Office of the Law Revision Counsel. 42 U.S.C. 12111 – Definitions In practice, requests tend to fall into a few groups.
Workplace Changes
These are the everyday adjustments: an ergonomic chair for chronic back pain, voice recognition software for someone who cannot type, a flexible schedule that fits medical appointments, or permission to work from home when the job allows it. Accommodations should ensure equal opportunity in hiring, enable a qualified employee to perform essential functions, and allow employees with disabilities to enjoy equal benefits at work.6U.S. Department of Labor. Accommodations
Reassignment to a vacant position is a last resort. Employers should first look for accommodations that keep you in your current role, and only turn to reassignment when nothing else works or the alternatives would create an undue hardship.7U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship Under the ADA
Physical Changes to Buildings
Structural modifications include ramps, wider doorways, grab bars in restrooms, and lowered counters. Title III requires businesses to remove architectural barriers when doing so is “readily achievable,” meaning without significant difficulty or expense. New construction must be fully accessible from the start.
Policy Changes and Communication Aids
Sometimes the barrier is a rule rather than a wall. A store that bans animals must let in service dogs. A standardized test must offer extra time to a student with a qualifying learning disability. A government office that communicates only by phone must offer an alternative for someone who is deaf. Public accommodations and government entities must provide auxiliary aids and services, which include qualified interpreters, Braille materials, audio recordings, large-print documents, and screen-reading support for digital content.8eCFR. 28 CFR 36.303 – Auxiliary Aids and Services
Service Animals and Emotional Support Animals
Under the ADA, a service animal is a dog trained to perform a specific task related to a person’s disability. Guide dogs, seizure-alert dogs, and psychiatric service dogs trained to interrupt harmful behaviors all qualify. No breed restrictions apply, and the dog does not need certification or professional training.9ADA.gov. Service Animals
Emotional support animals are treated differently. A dog whose presence provides comfort, without being trained to perform a specific task, is not a service animal under the ADA. A restaurant must allow a service dog and has no ADA obligation to allow an emotional support animal. Housing is governed by a separate law, the Fair Housing Act, which does protect emotional support animals as reasonable accommodations even without task-specific training.
When it is not obvious that a dog is a service animal, a business may ask only two questions: whether the dog is required because of a disability, and what task the dog has been trained to perform. Staff cannot ask about the nature of your disability, demand medical documentation, require special identification for the dog, or ask for a task demonstration.10ADA.gov. ADA Requirements – Service Animals
How to Request an Accommodation at Work
There is no required form or specific language. A request happens any time you let your employer know that you need a change at work because of a medical condition. Saying “I’m having trouble getting to work on time because of my medication schedule” is enough to start the process, even without the word “accommodation.”
Medical Documentation
Your employer can ask for medical documentation, but only enough to confirm that you have a disability and that the requested change is connected to it. Useful documentation describes the nature, severity, and duration of the impairment, which activities it limits, how it affects your ability to do those activities, and why the specific accommodation you are asking for would help. A doctor’s letter that focuses on functional limitations tends to work better than one that only names a diagnosis. “Patient cannot sit for more than 30 minutes without significant pain” gives an employer more to work with than “patient has lumbar disc degeneration.”
Your employer must keep medical information in a separate confidential file, not in your regular personnel records. Supervisors can be told only what they need to know about your work restrictions and any accommodations, and first-aid or safety personnel may be informed if your condition might require emergency treatment.
The Interactive Process
Once you make a request, your employer is expected to engage in what the EEOC calls an “interactive process,” a back-and-forth conversation about what you need and what the employer can provide.7U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship Under the ADA Your employer does not have to give you the exact accommodation you request. They can offer an equally effective alternative. If you ask for a standing desk and the employer offers a sit-stand converter that achieves the same result, that can satisfy the obligation.
An employer that refuses to have this conversation, or stonewalls without explaining why, risks liability for failing to accommodate. One that engages in good faith but ultimately cannot find a workable solution has a stronger defense.
When a Request Can Be Denied
The ADA does not require every accommodation someone asks for. Three defenses let a covered entity say no.
Undue Hardship
An accommodation is not required if it would impose significant difficulty or expense. The analysis looks at the cost of the accommodation, the resources and size of the specific facility, the overall resources of the parent organization, and the impact on business operations.11eCFR. 29 CFR 1630.2 – Definitions A $50,000 elevator installation might be an undue hardship for a 20-person company on thin margins but not for a large corporation. The analysis also considers available tax credits and outside funding, so an employer cannot claim hardship without checking whether financial help would offset the cost.
Fundamental Alteration
A business does not have to make a change that would fundamentally alter the nature of its goods, services, or operations.12Office of the Law Revision Counsel. 42 U.S.C. 12182 – Prohibition of Discrimination by Public Accommodations A burn specialist is not required to treat an unrelated condition just because the patient has a disability. A clothing store that does not offer personal shoppers to any customer is not required to offer one solely for a customer who uses a wheelchair. The test is whether the requested change would turn the business into something it is not.
Direct Threat
An employer can deny an accommodation or refuse to hire someone who poses a significant risk of substantial harm to themselves or others that cannot be eliminated or reduced through accommodation. This cannot rest on generalizations or stereotypes. The determination must come from an individualized assessment considering the duration of the risk, the nature and severity of potential harm, the likelihood harm will actually occur, and how imminent the danger is.13eCFR. 29 CFR 1630.2 – Definitions It has to be grounded in current medical knowledge and objective evidence, not speculation.
Retaliation Is Separately Illegal
The ADA prohibits retaliation against anyone who requests an accommodation, files a discrimination complaint, or takes part in an ADA investigation. Intimidating, threatening, or coercing someone for exercising their rights is also unlawful.14Office of the Law Revision Counsel. 42 U.S.C. 12203 – Prohibition Against Retaliation and Coercion Your employer cannot fire you, demote you, cut your hours, or create a hostile environment because you asked for a change or filed a complaint. This holds even if your original accommodation request is denied on the merits. Retaliation is its own claim.
Filing a Complaint If You Are Denied
Where you file depends on which title of the ADA applies.
Employment
For workplace complaints, file a charge with the Equal Employment Opportunity Commission. The deadline is 180 calendar days from the date the discrimination occurred, extended to 300 days if a state or local agency also enforces a disability discrimination law.15U.S. Equal Employment Opportunity Commission. Time Limits for Filing a Charge These deadlines are strict, include weekends and holidays, and do not pause while you pursue an internal grievance or union process.
The EEOC investigates and may try to resolve the dispute. To file a lawsuit in federal court, you need a Notice of Right to Sue. You can request one after 180 days from filing your charge, and the EEOC is required to issue it at that point if you ask. Once you receive the notice, you have 90 days to file suit. Miss that window and you will likely be barred from proceeding.16U.S. Equal Employment Opportunity Commission. Filing a Lawsuit
Government Services and Public Businesses
For Title II or Title III complaints, file with the Department of Justice Civil Rights Division online or by mail. The DOJ review can take up to three months. After review, the DOJ may investigate, refer the matter to its ADA Mediation Program, forward it to another federal agency, or ask you for more information. The DOJ cannot investigate every complaint and will notify you if it cannot act.17ADA.gov. File a Complaint
You can also file a private Title III lawsuit without going through the DOJ. Remedies are limited though. In a private Title III suit you can obtain injunctive relief, meaning a court order requiring the business to make the change, but not monetary damages. Only the Attorney General can seek monetary damages in a Title III enforcement action, and punitive damages are not available even then.18Office of the Law Revision Counsel. 42 U.S.C. 12188 – Enforcement Title I employment cases can include compensatory and punitive damages.
For Title II and Title III disputes, the DOJ also runs a free ADA Mediation Program as a faster alternative. It is voluntary and confidential, uses mediators trained in ADA requirements, and costs nothing. Any agreement reached is binding, either side can withdraw, and if mediation fails the complaint returns to the DOJ for possible investigation.19U.S. Department of Justice. The ADA Mediation Program – Questions and Answers