Both sites support multiple languages (English and Spanish), and both include lang="es" on the element of the Spanish pages. However, on the CDC site, in addition to lang="es" the element has xml:lang="en". This potentially sends mixed messages to screen readers (is this web page in Spanish or English?) JAWS 13 seems to honor lang rather than xml:lang but I don't know about other screen readers.
In recent cases, the U.S. Department of Justice has repeatedly sided with plaintiffs arguing that a private company’s website needs to be accessible, despite any other mitigating factors. One thing is for certain, however: The number of federal lawsuits alleging violations of the ADA is currently accelerating at a rapid pace. Between January and August 2017, there were 432 ADA lawsuits filed in federal court—more than the total number of ADA lawsuits in 2015 and 2016 combined.
Monica is the creative force and founder of MayeCreate. She has a Bachelor of Science in Agriculture with an emphasis in Economics, Education and Plant Science from the University of Missouri. Monica possesses a rare combination of design savvy and technological know-how. Her clients know this quite well. Her passion for making friends and helping businesses grow gives her the skills she needs to make sure that each client, or friend, gets the attention and service he or she deserves.
Founder is extremely easy to set up on your WordPress site and includes a few key customization tools. Choose to display excerpts or complete posts on the homepage, add a search bar to the header, upload your own logo, and add social media icons for your profiles. Founder is coded following WP best practices, so it is compatible with thousands of plugins found on for further customization.
"The United States demands that H&R Block is fined a penalty to 'vindicate the public interest' and to award money to the individuals who sued the company. The ADA prohibits discrimination of disability by public accommodations in the 'full and equal enjoyment of the goods, services, facilities, privileges, advantages and accommodations,'" the Justice Department said in joining the lawsuit.
I should mention one caveat to all of this. Businesses that are required to comply but don't have the ability to bring their websites into compliance can provide an accessible alternative to provide the same information, goods, and services that they provide online, like a staffed phone line. The trick, however, is that this option has to provide at least equal access, including in terms of hours of operation. And, as we know, the internet is around 24/7, so good luck with that. 
We not only referenced the ADA’s requirements while building the website, but also sat down one-on-one with users who are blind to see how they navigated the site. These individual sessions were invaluable and provided more insights than just the law’s basic requirements. Instead of making assumptions about how these users would interact with the site, we took the time to observe their real interactions and used that data to formulate new features.
Accessibility by UserWay UserWay creates a simpler and more accessible browsing experience for users with mobility issues. Millions of people cannot use a mouse or other pointing device and rely solely on their keyboard to navigate websites. Your site should be fully navigable using a keyboard’s tab key, arrow keys, the enter key and the space bar.
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.
@Rick, I didn't specifically look at doctype, but Steve Faulkner did in his original article (see the link at the top of this post). He found that 101 of the 130 pages containing role="main" (78%) used the HTML5 doctype, which of course leaves 22% that didn't. I do recommend using ARIA even if using an earlier doctype. Validation is important, but if validation and accessibility conflict, I think most would agree accessibility should trump validation. Assistive technologies that support ARIA landmarks do so regardless of doctype, and otherwise the presence of these role attributes has no ill effects in any user agent.

If the user selects this button, the page is read aloud while text is highlighted. This is powered by ReadSpeaker, which I think is a really cool product. It provides improved accessibility to a vast audience of people who might not otherwise have their own assistive technology, such as people who are not native to the language of the page, or people with dyslexia or other reading challenges.
In an August 2016 case involving the University of California Berkeley, the DOJ ruled that the public university was in violation of ADA Title II (similar to Title III but it instead applies to government organizations) because their YouTube channel’s videos didn’t include captions for hearing impaired visitors. The DOJ found this to violate the ADA as deaf users did not have equal access to the online content.
Again using the WAVE toolbar, check for Errors, Features, and Alerts. If there are many errors, I assume this page will not serve as a good example, and stop checking. If there are only a few errors (e.g., fewer than five) I'll check those errors and might be forgiving if they're relatively minor and are offset by good accessibility in other areas.
I should mention one caveat to all of this. Businesses that are required to comply but don't have the ability to bring their websites into compliance can provide an accessible alternative to provide the same information, goods, and services that they provide online, like a staffed phone line. The trick, however, is that this option has to provide at least equal access, including in terms of hours of operation. And, as we know, the internet is around 24/7, so good luck with that. 

Many deaf-blind individuals use support service providers (SSPs) to assist them in accessing the world around them. SSPs are not “aids and services” under the ADA. However, they provide mobility, orientation, and informal communication services for deaf-blind individuals and are a critically important link enabling them to independently access the community at large.
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.”
All public-facing websites should evaluate and consider compliance with ADA laws related to their industry. That is, your website should aim to be accessible to users with a disability. Failure to comply with this requirement can lead to potential legal issues and challenges, particularly in some industries. Fortunately for WordPress site owners, there are at least a dozen plug-ins specially designed to help you achieve greater measures of ADA compliance with minimal costs and work involved. The following are five options to consider to make your WordPress website ADA compliant.
The ADA statute identifies who is a person with a disability, who has obligations under the ADA, general non-discrimination requirements and other basic obligations. It delegates fleshing out those obligations to federal agencies. The agencies issue regulations and design standards. The regulations have the details on the rights of people with disabilities and responsibilities of employers, state and local governments, transportation providers, businesses and non-profit organizations. The design standards specify how many entrances need to be accessible, how many toilet rooms and the design for those elements.  To know what the ADA requires, you need to read the law, regulations and design standards.  
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.
The World Wide Web Consortium (W3C) established the main international standards and accessibility for the World Wide Web. The WCAG is created by the W3C to provide a standard for web content accessibility that can be shared around the world. The WCAG is meant to accompany organizations as a sort of blueprint on how to make their websites ADA compliant.
For discussion’s sake – while I don’t know the specific nature of your videos, my guess is that they might be demonstrating various techniques or other content in which simply hearing the audio of the video wouldn’t deliver the full context of the content. If making that content accessible is something you’d want to do, you’d likely want to start with a written description of what takes place in the video. Beyond that, high contrast vector images or diagrams showcasing specific parts of the technique would certainly help.
Error prevention on important forms (3.3.4): For pages that create legal commitments or financial transactions or any other important data submissions, one of the following is true: 1) submissions are reversible, 2) the user has an opportunity to correct errors, and 3) confirmation is available that allows an opportunity to review and correct before submission.
Accessible design benefits all users and creates market opportunity, Reha said. She continued: “Access to information online is everywhere, so it’s easy to take for granted that it’s available to everyone, but it’s not. Such access is incredibly important for people with disabilities because it lets them become independent and improves their quality of life.”
While legal considerations might be your biggest worry, making your site more accessible is simply good customer service. More than 39 million Americans are blind and another 246 million have "low vision," Another one million are deaf in the U.S. Add to that people with mobility issues that prevent them from using their hands and that's a huge portion of the country's buying power.
Complying with ADA provisions will cost you time, money, and human effort. Based on the audit results, you will know accurately the amount of time, human effort, and money you need to invest in compliance. Armed with these facts, you can start budgeting for the above three forms of cost—time, money, and human effort. This will require a clear roadmap.

Aloha Tatiana! I wish your questions had straightforward easy answers – and if you are government funded it kind of is. (See here: if you are not government funded, this is something that is currently being debated in the legal system. That being said, the WCAG 2.0 guidelines are a good set of guidelines to help protect yourself if you feel you should. (You can see more on WCAG here:
The Department of Justice published revised final regulations implementing the Americans with Disabilities Act (ADA) for title II (State and local government services) and title III (public accommodations and commercial facilities) on September 15, 2010, in the Federal Register. These requirements, or rules, clarify and refine issues that have arisen over the past 20 years and contain new, and updated, requirements, including the 2010 Standards for Accessible Design (2010 Standards).