Long over due from requests, I've added a description and map Web pages for the NPS' compliance with the American with Disabilities Act (ADA) in Mt Rainier NP, see description or map Web pages. These are not in the table of contents yet, as I'm working on updates to that Web page and the monthly/seasonal reports.
There is not a lot of information on ADA accessible places in the NP, just a few Web pages and the recent book (see book review), so I took the information I found there and added some I know from my travels in the NP for the Web pages.
Compliance to the ADA varys within the NP depending on the area, most of it in the southwest with Longmire and Paradise visitor areas and the northeast with the Sunrise area. There's some compliance in the southeast within the Ohanapecosh and Stevens Canyon road area.
There is no compliance in the northwest area with the Carbon River and Mowich Lake entrances as those areas exist for backcountry hikers, the Carbon River entrance closed at the NP boundary for only hiker and mountain bikers. The Mowich Lake area as minimal access at the Mowich Lake parking lot for the same reason, lack of facilities and being more a trailhead for hikers going into the backcountry.
That said, there are a few trails in the three other areas accessible for people under the ADA where the trail is relatively flat and wide enough for wheelchairs, etc., paved or with planks in some cases. This affords visitors some measure of getting into the area.
Anyway, please let me know if you have questions or suggestions for the Web pages.