The operators need to take trainings before they are on duty. The trainings include the knowledge of organic rice producing, the requirements of the production and etc. The operators need to take annual physical examination and to obtain the health certificate. When they enter the rice mill they are requested to change the shoes, wear the working clothing and hats. Meanwhile, the mill to be maintained clean. In the packaging area, the mask is also required during the work. Food is forbidden during the operation.