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The paper deals with RFID (Radio Frequency Identification)implementation and utilization within supply chain managementand also includes the economic feasibility of rollingout RFID. The members of the supply chain networks- suppliers,manufacturers and distributors - will operate independentlyfrom one another and according to their own agendas.This type of unmanaged network, howeve1; results in inefficiencies.The manufacturer might have a goal of maximizing productionin order to minimize unit costs. Clearly, all members ofthe supply chain stand to gain by coordinating their efforts toimprove efficiency and overall supply chain performance. Thisarticle is divided into three parts: Supply chain, Economic feasibilityof rolling out RFID and Processes of Supply chain management.

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This article deals with research of laboratory testing by active and passive UHF tags and therefore mutual coexistence of active and passive RFID technology, which is a part of automatic identification and data capture. In this article we would like to describe an identification of transport unit based on passive technology and also by active technology. We would like to specify, how this technologies can work together and in which application focuses on postal and logistics. All results are verified by measurement in our AIDC laboratory, which is located at the University of Žilina. Our research contains different types of measurements in order to point out the possible influence of these two technologies. The results of our research bring the new point of view and indicate the ways using of UHF RFID technology in postal and logistics applications. At the end of this article is characterized the utilization of the RFID technology in postal logistics chain by using both passive and active technologies.