sentences:  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.Paralympic athletics has been one of the sports at the Paralympic Games since 1960, though deaf athletes and athletes with an intellectual disability compete separately at the Deaflympics and Special Olympics World Games, respectively.The three major sport-specific world championships for para-athletics are the World Para Athletics Championships, the World Deaf Athletics Championships and the INAS World Athletics Championships.