ADA violations are the result of a failure to comply with the Americans with Disabilities Act (ADA). The ADA is a federal civil rights law that gives people with disabilities the right to access public accommodations and employment opportunities. The ADA protects people from discrimination based on their disability, as well as their association with it.
When someone has been discriminated against because of their disability or association with someone who has a disability, there is a good chance that they have been subjected to an ADA violation. This can include being denied service, being refused employment or promotion, or being forced out of work due to their disability-related needs.
The ADA requires that businesses and organizations offer reasonable accommodations for disabled employees and customers. If an employer does not make an effort to accommodate your needs without placing an undue burden on them, then they have violated the law.
The same applies if you are denied service at a restaurant or hotel because you use a wheelchair or other mobility device. In this case, it is likely that the establishment has violated the law by failing to make reasonable accommodations for you as required by law.