The Ministry of Cooperatives, Labour, and Social Welfare of Iran is responsible for the to plan and supervise application of labour and cooperative law, comprehensive welfare and social security system and other relevant laws and regulations. This ministry at the beginning of each year indicates the minimum labour wage for general workers. The organizations should obey the minimum wage condition and the related insurance condition that is indicated by the Social Welfare Organization and the Tax office of Iran. Worker Social Services Department that is functioning under the management of the ministry is responsible for investigating the differences between the worker and the employer.