The Department of Veterans Affairs intends to issue a sole-source, firm-fixed-price open-market purchase order to Thompson Machinery Commerce Corporation for recurring full-service maintenance and rebuild of the Caterpillar G3520C generator set, radiator system, and auxiliary systems at the TVHS Alvin C. York Campus, Building 16. The requirement covers OEM-authorized/certified technicians, transportation, tools, parts, materials, and supervision for manufacturer-required maintenance, including a standard top-end overhaul at 18,000 service hours or multiples and an out-of-frame overhaul in the fifth year/option year 4, with a one-year Caterpillar warranty after the in-frame overhaul. The sole-source basis is that Thompson Machinery is the only Factory Authorized Caterpillar source for sales, service, and parts in Middle and West Tennessee and Northern Mississippi, and Caterpillar engine-control/emissions software is proprietary. The estimated ordering periods run from 12/01/2026 through 11/30/2031 across five 12-month periods. The applicable NAICS code is 333120 with a size standard of 1,250 employees.