State and local governments will often post documents on their websites using Portable Document Format (PDF). But PDF documents, or those in other image based formats, are often not accessible to blind people who use screen readers and people with low vision who use text enlargement programs or different color and font settings to read computer displays.
So, without a clear set of accessibility regulations to comply with, how can you tell if your website is compliant? The best measure available is the aforementioned WCAG 2.0 Level AA guidelines. WCAG standards have been the guiding accessibility principle in the European Union and other countries since 1999, with the most recent update taking effect in Spring of 2018. While WCAG is a set of recommended actions rather than enforceable legislation, it forms the backbone of many online accessibility laws around the world and offers a strong model for any American organization striving to provide equal access for all users.
Another important consideration is that the ADA does not allow businesses to simply provide an alternative such as a phone number. Lastly, include accessibility issues as part of your website and mobile strategy. When new technologies are implemented or pages added, part of the process should include the implications for persons with disabilities. 

While the U.S. Department of Labor's (DOL) Office of Disability Employment Policy (ODEP) does not enforce the ADA, it does offer publications and other technical assistance on the basic requirements of the law, including covered employers’ obligation to provide reasonable accommodations to qualified job applicants and employees with disabilities. For a quick overview of the ADA read “The Americans with Disabilities Act: A Brief Overview.”

Because web designers tend to work as freelancers on a project basis, they must be excellent communicators, willing to manage their own work, and available on your schedule. Some critical skills, such as working collaboratively and responding enthusiastically to feedback, aren’t core to good web design, but make working with a web designer much easier. Finally, look for a web designer who has cross-functional knowledge, such as understanding marketing and conversion rate optimization in addition to web design.
Leading web developers have been pioneering accessibility and publishing standards since 1994. In 1999, the Web Accessibility Initiative (WAI) and the World Wide Web Consortium (W3C) created the Web Content Accessibility Guidelines (WCAG). In essence, the people who determine how the internet is written came together to advise web developers on how to make websites accessible not only to people with disabilities, but to all web users, including those with highly limited devices.
The ADA is the Americans with Disabilities Act, passed almost 30 years ago in 1990. This act was originally put in motion pertaining solely to physical location. It requires establishments to provide people with disabilities easy access to various levels throughout the business. This act was set to achieve an equal experience to all people, handicapped or not.