Specifications include, but are not limited to: The State of Tennessee Department of Transportation issues this Request for Information (“RFI”) for the purpose of gathering information concerning an enterprise subscription service model for replacement equipment, administrative software, service and maintenance for all of the fortythree (43) GNSS reference stations across Tennessee (hereinafter “Sites” or “Stations”) which currently make up the TDOT CORS Network (hereinafter “CORS” or the “Network”). TDOT wishes to replace all of the existing TDOT GNSS reference Stations in the TDOT CORS Network with an enterprise subscription service (the “Subscription”) to improve the network redundancy and accuracy of network solutions. TDOT may also expand the CORS Network to as many as two hundred (200) stations.