I was in WDW in 1989 on a high school senior trip. A resort card was definitely required to ride the resort monorail when I was there.What years where this? We stayed at the Contemporary a few years starting with 1996. They did not do that at that time. I don't ever remember being asked for proof of stay to board any Disney transportation. I always saw that you were able to use the transportation with your ticket, but they never check that either.