USDA ARS issued a pre-solicitation notice for an upcoming Automated Segmented Flow Analyzer with AS2 Autosampler requirement. The government intends to solicit quotations directly from at least three manufacturers/suppliers under RFO 12.201-1(c)(2), and no formal solicitation will be posted on SAM.gov. The targeted contract award date is 23 September 2026. A responsible source is a small business with satisfactory past performance whose primary industry is the manufacture or sale of total aircraft wash systems. Interested vendors may submit company information, but responding does not guarantee inclusion and this notice is not an RFQ, RFP, or IFB.