The USDA Agricultural Research Service intends to award a contract on a single-source basis for Chemical Analysis services, but is inviting quotes from all responsible sources to potentially compete the requirement. This is a combined synopsis/solicitation, meaning no separate written solicitation will be issued. The acquisition is unrestricted and not set aside for small business, with NAICS code 541380 and a size standard of $19 million. Timely submissions will be considered, though the government retains sole discretion on whether to compete the contract. No performance location or budget amount is specified.