In Japan, according to law, the contractor engineers who are in charge of construction supervision and management at each construction site must have national license. Such licensed engineers compose Construction Management Engineers Association in each prefecture. These 50 local or special-technology associations compose Japan Federation of Construction Management Engineers Associations (JCM).
Main missions of JCM are as follows:
1) Promotion of construction management engineers°« skills (Improvement of completion and management of skills)
2) Improvement of site-productivity (Improvement of safety, quality and efficiency)