One hazard that arises from working on scaffolding is a lack of training among the employees. If workers are not trained properly, they will be more prone to accidents and to cause accidents to fellow workers. All employees must be competent for the type of scaffolding work they are undertaking and should have received appropriate training relevant to the type and complexity of scaffolding they are working on. Employers must provide appropriate levels of supervision. As a minimum requirement every scaffold gang should contain a competent scaffolder who has received training for the type and complexity of the scaffold to be erected, altered or dismantled. Erection, alteration and dismantling of all scaffolding structures should be done under the direct supervision of a competent person.    All scaffolding inspection must be carried out by a competent person whose combination of knowledge, training and experience is appropriate for the type and complexity of the scaffolding.