USDA Agricultural Research Service intends to award a single-source contract for Combine-mounted NIRS. This combined synopsis/solicitation is for commercial items under FAR Part 12, and quotations are being requested. The acquisition is unrestricted and not set aside for small business; NAICS code 334516 applies with a 1,000-employee small business size standard. All responsible sources may submit a quotation for consideration, but the Government retains sole discretion on whether to compete the proposed contract.