On Dec. 26, 2017, the DOJ withdrew the proposed rulemaking for Title II and Title III, effectively killing any forward progress on adoption (more on that here: https://www.law.com/dailybusinessreview/2018/03/01/website-operators-are-on-notice-recent-events-may-force-change/). While disappointing, this is not surprising, given the current administration's commitment to deregulation. That said, I fully expect the courts to continue to fill the gap and hold businesses accountable, so I would encourage you to take accessibility standards into account as you work up the governance for your enterprise intranet services. If it would be helpful for me to put you in touch with an attorney with experience in these matters, I'd be more than happy to do so. Feel free to shoot me an email anytime at [email protected] Best of luck!

However, full compliance with the ADA’s promise to provide an equal opportunity for individuals with disabilities to participate in and benefit from all aspects of the programs, services, and activities provided by State and local governments in today’s technologically advanced society will only occur if it is clear to public entities that their websites must be accessible.
Because they only read text, screen readers and refreshable Braille displays cannot interpret photographs, charts, color-coded information, or other graphic elements on a webpage. For this reason, a photograph of a mayor on a city’s website is inaccessible to people who use these assistive technologies, and a blind person visiting the website would be unable to tell if the image is a photo, a logo, a map, a chart, artwork, a link to another page, or even a blank page.
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. 
Disabilities covered under the ADA can be physical (e.g., muscular dystrophy, dwarfism, etc.), sensory (e.g., blindness, deafness, deaf-blindness), or cognitive (e.g., Down Syndrome). In 2008, the Americans with Disabilities Amendment Act broadened the scope of how disability is legally defined: psychological, emotional, and physiological conditions are now included.
The DOJ is currently working to release new technical standards for digital accessibility. The latter updates to the ADA guidelines will be in conjunction with the latest version of WCAG 2.1, which includes the most widely accepted digital accessibility requirements across the globe. If organizations want to overcome the current limitations of ADA guidelines, then they should follow the WCAG 2.1 checklist,11 as well as the suggestions provided by the ADA. The latter two steps, combined with the help of a trusted digital accessibility compliance platform,12 can help organizations achieve digital accessibility best in class standards throughout all of their digital formats and across all media.
The Department has assembled an official online version of the 2010 Standards to bring together the information in one easy-to-access location.  It provides the scoping and technical requirements for new construction and alterations resulting from the adoption of revised 2010 Standards in the final rules for Title II (28 CFR part 35) and Title III (28 CFR part 36).
In response to the members’ concern about the proliferation of website litigation lawsuits, DOJ said:  “Given Congress’ ability to provide greater clarity through the legislative process, we look forward to working with you to continue these efforts.”  DOJ is essentially putting the ball back in the Congressional court, where little is likely to happen.
These and other types of multimedia can present two distinct problems for people with different disabilities. People who are deaf or hard of hearing can generally see the information presented on webpages. But a deaf person or someone who is hard of hearing may not be able to hear the audio track of a video. On the other hand, persons who are blind or have low vision are frequently unable to see the video images but can hear the audio track.

The statement that “noncompliance with a voluntary technical standard for website accessibility does not necessarily indicate noncompliance with the ADA” is new and significant.  It is a recognition that a website may be accessible and usable by the blind without being fully compliant with the privately developed Web Content Accessibility Guidelines (WCAG) 2.0 or 2.1.  The statement confirms what some courts have said so far:  That the operative legal question in a website accessibility lawsuit is not whether the website conforms with WCAG, but whether persons with disabilities are able to access to a public accommodation’s goods, services, and benefits through the website, or some alternative fashion.