Para-snowboarding classification is the classification system for Para snowboard. The sport originally called Adaptive Snowboard is now practiced by hundreds of athletes around the world. The International Paralympic Committee (IPC) defines three classes: SB-LL for athletes with a physical impairment affecting one or both legs (with SB-LL1 and SB-LL2 for more- and less-severe impairment), and SB-UL for athletes with a physical impairment affecting one or both arms who compete standing. The sport made its official Winter Paralympic debut in the 2014 Winter Paralympics in Sochi, Russia.