South African Heavy Haul Association

the south african heavy haul association (sahha) is a non profit organisation that is dedicated to the pursuit of excellence in heavy haul railway operations, engineering, maintenance and technology in south africa. it strives to accomplish this mission through the acquisition of knowledge by organizing regional forums and events. sahha is a local chapter of the 43-year-old international heavy association (ihha), whose mission is dedicated to the pursuit of excellence in heavy haul operations, engineering, maintenance and technology. the international heavy haul association (ihha) is a worldwide non-governmental, scientific and technological association of heavy haul railways and their advocates. the ihha is incorporated as a not-for-profit association.