Norfolk Naval Shipyard is conducting market research to identify qualified contractors capable of modernizing three 100-ton Heavy Lift Transporters (HLTs), serial numbers 125, 126, and 127. The work involves replacing all major components with current-generation technology while retaining the frame chassis, engine, and generator. The government intends to award a sole source contract to the OEM, TDS Automation, but is seeking evidence of other authorized and capable vendors. No budget information is specified, and the location for performance of services is not mentioned. Responses are for planning purposes only and must be submitted via email by interested parties.