The U.S. Geological Survey is conducting market research to identify qualified small businesses capable of providing Accelerator Mass Spectrometry (AMS) Radiocarbon Analyses. This is a sources sought notice for planning purposes only and is not a request for proposals. Responses, limited to 10 pages, must be submitted via email and received by the specified deadline. The applicable NAICS code is 541380 with a size standard of $19 million. No contract award, budget, or performance location is guaranteed from this announcement.