Ronald McDonald House Charities (RMHC) provides temporary housing to families of seriously ill children undergoing treatment. The group's signature Ronald McDonald House program maintains about 295 facilities near hospitals in 30 countries and regions worldwide. RMHC also offers 145 Ronald McDonald Family Rooms, designed to provide places of respite within hospitals. Its 40-vehicle Ronald McDonald Care Mobile program brings routine medical services, including immunizations, to children in underserved communities. RMHC operates through local chapters in about 50 countries and regions worldwide. The first Ronald McDonald House opened in 1974, in memory of McDonald's founder Ray Kroc. RMHC was founded in 1984.