World records in disability athletics are ratified by the International Paralympic Committee (IPC). In Paralympic athletics competitions, athletes are given a class depending on the type and extent of their disability. The classes are as follows: * 11–13: Blind and visually impaired * 20: Intellectually disabled * 32–38: Athletes with cerebral palsy; classes 32–34 compete in wheelchairs, while 35–38 are ambulant * 40–46: Ambulant athletes with amputations or other disabilities such as dwarfism * 51–58: Wheelchair athletes with spinal cord injuries or amputations