Any business that is considered a “place of public accommodation” is required to provide equal access to services under the nondiscrimination requirements of Title III of ADA. When you look at the guidelines closely, this includes hotels, entertainment venues, legal and accounting firms, retail stores, and virtually every business that is not a private club, including businesses that exist solely on the web.

As I mentioned above, under each WCAG 2.1 principle is a list of guidelines, and under each guideline are compliance standards, with techniques and failure examples at each level. Some guidelines include only Level A items; others include items for multiple levels of conformance, building from A to AAA. At each stage, you can easily see what more you would need to do to reach Level AA or AAA. In this way, many websites include elements at multiple levels of accessibility.

Small businesses with either $1,000,000 or less in revenue or 30 or fewer full-time employees may take a tax credit of up to $5,000 annually for the cost of providing reasonable accommodations such as sign language interpreters, readers, materials in alternative format (such as Braille or large print), the purchase of adaptive equipment, the modification of existing equipment, or the removal of architectural barriers.

A. No. The ADA requires that the employer provide the accommodation unless to do so would impose an undue hardship on the operation of the employer's business. If the cost of providing the needed accommodation would be an undue hardship, the employee must be given the choice of providing the accommodation or paying for the portion of the accommodation that causes the undue hardship.
An employer generally does not have to provide a reasonable accommodation unless an individual with a disability has asked for one. if an employer believes that a medical condition is causing a performance or conduct problem, it may ask the employee how to solve the problem and if the employee needs a reasonable accommodation. Once a reasonable accommodation is requested, the employer and the individual should discuss the individual's needs and identify the appropriate reasonable accommodation. Where more than one accommodation would work, the employer may choose the one that is less costly or that is easier to provide.