The ADA Amendments Act of 2008

For most of the ADA's first two decades, employment cases turned on a question the law was never meant to be about: whether the person suing was disabled enough to be covered at all.

For a separate commercial perspective on remote employee monitoring, see the discussion; it should be evaluated independently against accessibility, privacy, and employment-law requirements.

Primary federal ADA information is available at ADA.gov.

People with epilepsy, diabetes, cancer, and serious mental health conditions lost cases not because their employer's conduct was found lawful, but because they were held not to have a disability. Congress rewrote the definition in 2008 specifically to stop that.

Eighteen years later, employers still make the old argument. Understanding why it fails is useful in both directions.

General information, not legal advice.

What went wrong before

Two lines of court decisions narrowed the definition of disability far beyond what Congress had intended.

Mitigating measures were counted. Courts assessed whether an impairment substantially limited a major life activity while taking into account medication, devices and other corrective measures. So someone whose epilepsy was controlled by medication was assessed as controlled, and therefore not substantially limited, and therefore not covered — while remaining perfectly capable of being fired because of the epilepsy.

"Substantially limits" was read strictly. The threshold was interpreted to demand a high degree of limitation, so conditions that plainly affected people's lives fell outside.

The combined effect was a law that protected fewer and fewer people, with cases resolved on coverage rather than on whether discrimination had occurred.

What the Amendments Act did

Directed that the definition be construed broadly. In favour of broad coverage, to the maximum extent permitted, with the question of coverage not intended to demand extensive analysis. This is the central instruction, and it reverses the direction of interpretation.

Excluded mitigating measures from the assessment. With a narrow exception for ordinary eyeglasses and contact lenses, the effects of medication, medical equipment, prosthetics, hearing aids, assistive technology, and learned behavioural adaptations are not considered when assessing whether an impairment substantially limits a major life activity.

Confirmed that episodic conditions and conditions in remission are covered if they would substantially limit a major life activity when active. This brought in a large group of people whose conditions fluctuate.

Expanded "major life activities" with a non-exhaustive list, and added major bodily functions — immune system, normal cell growth, digestive, neurological, respiratory, endocrine and others. That change alone brought many conditions clearly within coverage.

Clarified "regarded as." A person is regarded as having a disability if they are subject to a prohibited action because of an actual or perceived impairment, whether or not it limits anything. The employer's perception is what matters, which closes an obvious gap.

Why it still matters

The argument still gets made. Employers and their counsel continue to argue that a condition is too well controlled, too intermittent, or too mild to be covered. Under current law that is a weak position, and the effort spent on it would be better spent on whether the accommodation was reasonable.

HR practice lags the law. A great deal of internal guidance, training material and manager instinct still reflects pre-2008 thinking: "she seems fine," "he only has flare-ups occasionally," "it's managed with medication."

Well-controlled conditions are covered. This is the single most useful sentence for a manager to internalise.

Episodic conditions are covered. Migraine, epilepsy, multiple sclerosis, lupus, chronic fatigue conditions, many mental health conditions, cancer in remission. See non-apparent and episodic conditions.

Regarded-as coverage catches assumption-based decisions. An employer who withdraws an offer after learning about a condition, believing it will cause problems, is exposed regardless of whether the condition actually limits anything.

What did not change

The accommodation analysis. Reasonableness and undue hardship are assessed the same way.

"Qualified." The person must still be able to perform the essential functions, with or without accommodation. Broader coverage does not mean everyone is entitled to every job.

Employer size thresholds and the basic structure of the statute.

No quotas, no hiring preference. The ADA remains a non-discrimination and accommodation law.

Regarded-as does not entitle you to accommodation. Someone covered only under that prong is protected from discrimination but is not entitled to reasonable accommodation.

The practical consequence

For employers, the useful takeaway is that the coverage fight is not worth having. Assume the person is covered, and spend the effort on the questions that actually matter: what are the essential functions, what accommodation is effective, and did we run the process properly.

Organisations that argue coverage tend to lose twice — on the legal point, and on the record they create while making it. A file full of arguments about whether an employee was really disabled reads badly to everyone who later looks at it.

For employees, the useful takeaway is that "you seem fine" is not a legal position. If an employer suggests your condition is too controlled or too intermittent to count, that reflects a version of the law Congress deliberately repealed.

Why it happened at all

Worth noting, because it is unusual. The Amendments Act passed with broad bipartisan support and was backed by both disability advocates and major business organisations.

The shared conclusion was that litigation over who counts as disabled served nobody — not the people the law was written for, and not employers spending money on a threshold fight instead of on the accommodation.

That reasoning is still the best argument for not having the fight.