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Dayton T. Brown is known world-wide for excellence in engineering and testing services for the development and ultimate approval and acceptance of Rail and Transit products. DTB provides a wide range of in-lab and on-site EMC and Environmental simulation testing services. Testing is performed in accordance with the latest standards and tailored transit authority specifications. In addition, DTB is a member of RSSI (Railway Systems Suppliers, Inc.), which is a trade association serving the communication and signal segment of the rail transportation industry.