You probably won't have to check your site with all of the available evaluation tools out there, but it is a good idea to do so for the most common web browsers. Just as accessibility software makes it easier for people with disabilities to navigate the Internet, these tools make it easier for developers to ensure accessibility from the start. When you think you've mastered it, go back through the Section 508 compliance checklist to ensure you've met every goal.
Real-time captioning (also known as computer-assisted real-time transcription, or CART) is a service similar to court reporting in which a transcriber types what is being said at a meeting or event into a computer that projects the words onto a screen. This service, which can be provided on-site or remotely, is particularly useful for people who are deaf or have hearing loss but do not use sign language.
Vu said that she gets one question all the time: What are the legal standards? There is no legal standard, but there are guidelines out there: The Web Content Accessibility Guidelines (WCAG), version 2.0, with 3 levels of conformity: A, AA, AAA. They were put out by W3C. Companies can use those guidelines. The Justice Dept. uses the A and AA levels.
Regarding examples of accessible websites, I would suggest the Accessiweb gallery: Accessiweb is a reference list 100% based on WCAG2, and they deliver quality marks (the "Accessiweb label") upon website owners solicitation. The website undergoes a thorough manual review (on a carefully defined 10-page sample, more or less), and it gets the label only if it's flawless on every page. The level is reflective of the number of defects found and not corrected. Bronze is exactly equivalent to level A, Silver to AA, and Gold to AAA. So getting a Silver label means all A and AA tests were passed on all of the sample. Bronze, two stars: All A tests were passed, plus 50 to 75% AA tests. And so on.
This plugin has been very useful in creating a fully ADA compliant site. Not only is it cheaper than most plugins, it encourages you as you work on the site. Letting you know what needs changed, and how far you have left to go. There's been a few issues' I've noticed with the builder "Themify", in the scanning. But whatever the issue is, most of the time the plugin creator has been very helpful in resolving these issues. The creator of the plugin responds within about 3 hours or less whenever you email. Most the time it's less than 30 minutes depending on the issue. Very glad to have such great support for the plugin. I highly recommend any business that is looking for building a ADA Compliant site, to use this plugin as it has done a great job for websites I use, and it's got a great price tag! It's well worth the price, and the additional features it gives to show you the definition of what each error is, is very useful.
The Department of Justice’s revised regulations for Titles II and III of the Americans with Disabilities Act of 1990 (ADA) were published in the Federal Register on September 15, 2010. These regulations adopted revised, enforceable accessibility standards called the 2010 ADA Standards for Accessible Design, "2010 Standards." On March 15, 2012, compliance with the 2010 Standards was required for new construction and alterations under Titles II and III. March 15, 2012, is also the compliance date for using the 2010 Standards for program accessibility and barrier removal.
Web designers often design in such a way that does not allow the user to adjust font size or color. While they may be protecting their brand, they are also inhibiting some users. Many visually impaired need to use high contrast color settings or very large fonts to read a website. Don't design your website in a way that makes it impossible for them to do this. 
Penn in particular nearly made the cut because I really like their keyboard accessibility. It amazes me how few sites provide visible indication of keyboard focus, when it's incredibly simple to achieve (just add a style for a:focus in your style sheet). Penn did this, and consequently it's very easy for sighted keyboard users to keep track of their position as they tab through the page. They also included a keyboard-accessible dropdown menu. However, there are some dynamic features on the Penn home page that really need ARIA markup for full accessibility. They also have a few contrast problems, most notably their slideshow navigation, which is red-on-red:
Automated testing is the first step toward determining if your website is accessible to people with disabilities, including those using assistive technologies like screen readers, screen magnifiers, switch controls, and others. The free testing tools on this website will give you an idea of whether your website is compliant with laws like Section 508, the Americans with Disabilities Act (ADA), and the 21st Century Communications and Video Accessibility Act. If you find you have many violations, Level Access has experts that can help you reduce your legal risk.
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.

Web accessibility addresses the needs of every website visitor to achieve an optimal level of usability and ADA compliance. Many people browsing the web have a permanent disability (visual, mobility or neurological impairment), or a temporary impairment such as a broken arm, broken or lost eyeglasses, and so on. Many baby boomers have aging-related issues that make using the web more challenging, and they’re not alone–about 20% of the U.S. population has an identified disability.

Finally, WA11Y is another top ADA compliance plug-in to consider. A toolbox of resources to help you meet most ADA compliance needs, the plug-in packs multiple accessibility tools, each with a unique purpose. Tota11y, the first tool in the box, for instance, annotates all elements of your web pages and identifies any accessibility issues. Another tool in the box, WAVE, performs a detailed accessibility analysis of each page and provides printable reports. Then, you have FILTERS which is used to modify data within Wa11y.
A person’s method(s) of communication are also key. For example, sign language interpreters are effective only for people who use sign language. Other methods of communication, such as those described above, are needed for people who may have lost their hearing later in life and do not use sign language. Similarly, Braille is effective only for people who read Braille. Other methods are needed for people with vision disabilities who do not read Braille, such as providing accessible electronic text documents, forms, etc., that can be accessed by the person’s screen reader program.
Meanwhile, the Justice Dept. enforcement team is doing cramdowns over web sites and mobile apps. For example, PeaPod grocery delivery service, which Vu assisted when the Justice Dept. gave them a hard time. In addition, H&R Block was sued by the National Federation of the Blind and the Justice Dept. became a plaintiff in the case — H&R Block complied.
You probably won't have to check your site with all of the available evaluation tools out there, but it is a good idea to do so for the most common web browsers. Just as accessibility software makes it easier for people with disabilities to navigate the Internet, these tools make it easier for developers to ensure accessibility from the start. When you think you've mastered it, go back through the Section 508 compliance checklist to ensure you've met every goal.
Higher search engine rankings is another potential benefit of voluntary compliance with the ADA. During your migration, an ADA specialist will audit it to detect and address usability challenges. These difficulties include the inability for search engine spiders to index your site easily. When you address such issues, your site will rank highly in search engines.
...the full and equal enjoyment of the goods, services, facilities, or accommodations of any place of "public accommodation" by any person who owns, leases, or operates a place of public accommodation. Public accommodations include most places of lodging (such as inns and hotels), recreation, transportation, education, and dining, along with stores, care providers, and places of public displays.
The ADA guidelines provide the foundation that organizations need to achieve digital accessibility best approaches, however they are not exhaustive. They do not provide direction for all of the accessibility challenges that people with disabilities face. They also fail to provide detailed technical instructions. With these limitations in mind, there is a ray of hope.
Talk to your web designer about other techniques that will make your site more user-friendly for people with disabilities. Worried that’s not in your budget? Consider the fact that DOJ fines start at $75,000. And it's still yet to be determined if a non-compliant website is liable for one fine or will be charge per page for each violation. As the recent lawsuits illustrate, though, settlements quickly add up into the millions.
Updated regularly to fully meet ADA standards, WP Accessibility addresses persistent WordPress theme compliance challenges. Among other things, you can: enable (or add) Skip links with WebKit by adding JavaScript to move keyboard focus; add language and text direction with HTML attributes; add toolbar toggling between high contrast, large print, and grayscale (desaturated) views; and even add long descriptions to images. Even better, WP Accessibility comes with several built-in third-party tools for enhanced performance. These include tools for CSS diagnosis as well as tools to show the contrast between hexadecimal color values.
The pressure is mounting to implement technology that more directly connects with residents, but balancing the shift to enable all citizens – including the approximately 19 percent with disabilities – can seem insurmountable. Beyond ensuring your organization is doing right your community, being in compliance with the Americans with Disabilities Act (ADA) or Section 508 standards is daunting – especially with the threat of a fine or lawsuit for non-compliance.

The Americans with Disabilities Act (ADA) was first passed in 1990. Twenty years later, the US Department of Justice released an update called the 2010 ADA Standards for Accessible Design. These standards cover the design of physical spaces and have been interpreted to include web locations as well, so it can be difficult for the would-be accessible website designer to use them.