A rigger is a skilled tradesperson who specializes in the assistance of manual mechanical advantage device comprising pulley, block and tackle or motorised such as a crane or derrick or chain hoists (chain fall) or capstan winch. A certified rigger is a person who has been trained and certified to handle and move loads. The level of certification depends upon the individual’s training, knowledge, skill base, and ability to perform functions related to the selection, inspection, and proper use of rigging equipment. Riggers move heavy materials and equipment around worksites using rigging gear such as pulleys, cranes and winches. They assemble temporary structures like scaffolding on construction sites and move and assemble pre–cast facades and panels on buildings under construction. Riggers in the marine industry are involved with setting up the pieces of equipment necessary to keep the ship functioning: ropes, pulleys, winches, and cables. Most commonly, however, jobs are found within heavy construction, often in the oil or mining industry.

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