International governance operates outside of the sport's able-bodied governing body International Association of Athletics Federations (IAAF) and instead is divided among those categories, with deaf athletics overseen by the International Committee of Sports for the Deaf (CISS), para-athletics for the physical disabled principally governed by the World Para Athletics subcommittee of the IPC, and para-athletics for the intellectually disabled through the International Sports Federation for Persons with Intellectual Disability (INAS). There are also condition-specific organisations, such as the International Dwarf Sports Federation and International Athletics Association for Persons with Down Syndrome. Rules for the sport are adapted from those set forth by the IAAF, with the majority of rules for para-athletics being the same as those for able-bodied competitions, with exceptions that account for competitors' abilities, such as a visual signal instead of a starting pistol in races for the deaf.