A Comparative of the Principles Govern of Public Procurement in the Iranian Legal System and the Organization of Economic Cooperation and Development (OECD)

Public procurement is proces supply of goods and services by government of the private sector. Due to the use of public resources through public procurement on the supply of goods and servicesPublic, private and public sectors due to conflicts of interest and misuse of public. consumption of public resources and ensuring effective management of public resources requires principles and mechanisms. Organization for Economic Cooperation and Development for all stages of the deal cycle of government guidelines and criteria on the four pillars of transparency, good governance, accountability and control as well as prevention of misconduct is classified.Of course, these principles are not objective but rather a tool to achieve the main objectives of public procurement, including increased public confidence, maintaining the value of money (fair price), conservation and optimal management of financial resources. In the Iranian legal system, public procurement should be done through tenders and tenders law enacted by the legislature in 2004 is an attempt to transparency, competitiveness and non-discrimination, fair treatment and equal in the public tenders taken.In order to effective management in public procurement the authorities must explain the risk map vulnerable spots and bottlenecks and adopt practices that lead to promotion effective mechanisms public procurement, be considered. In this study, after sketching the concept of public procurement and its objectives,The role of the principles to promotion function in public procurement from the perspective of the OECD and Iranian legal system. Keywords: public procurement, OECD , the Iranian legal system, , Transparency,competio