An amendment revised the solicitation’s terms and conditions and added Attachment 3 – JA Restricting Competition. The requirement is for preventive maintenance services for the main switchgear, a Caterpillar Model AA, Serial No. 32269, located at USNPRC Building 2 in support of USDA-ARS-SEA. This is an unrestricted acquisition, not set aside for small business, under NAICS 811310 with a $12.5M small business size standard. All responsible sources may submit a quotation, with applicable clauses, instructions, evaluation criteria, the Statement of Work, and wage determination provided in the attachments.