There is nothing official specifically for Cast Members' wheelchairs that I am aware of.... Back in 1997, I was in the College Program....when I checked into Vista Way, the counselors just told me to keep the chair clean, and not to add anything to it that would get guests' attention. Same general rule of thumb as the personal grooming and appearance.
I got sick and had to go home early. I never finished the College Program, and since I did not know what I really wanted to do other than WDW.....I took a few years to try to find myself. In 2003, I got involved with Greyhounds in Randleman, NC. Another volunteer happened to be from Orlando. She was up here going to college. I had never met anyone who actually lived in Orlando before. I was totally starstruck for a while. A total WOW factor. We became great friends, and she told me about the Rosen school at UCF. After 9 months of thinking about it, With the encouragement of my friend and her awesome family, I got up the courage to go back to school and try for UCF. Another VERY IMPORTANT goal is finally completing the College Program.
Two years ago, I needed to get a new wheelchair to meet my needs. We designed the new chair with my WDW dreams in mind. First thing was to make sure the chair would clear the arch over the "It's a Small World" boarding area. When I started designing the seat, I took the basic rules of the Disney Look into consideration. I am sure that they would allow the positioning harness and headrest if I asked, but they would detract from the look of the costume. I want to be the best cast member I can be, and not ruin the magic for the guests. I have not talked to Disney to see what they will accept as "reasonable accomodations" for the costume. Rather, I just chose supports that can detach or fold out of the guests' sight. I really want to make Mickey proud. In addition, I chose a paint color that would not stand out in the parks. I wanted Gator Orange, but decided to go with "Midnight Blue" to look more professional.