This opportunity is for pilot chamber testing facilities to perform three test days of hypobaric Decompression Sickness (DCS) studies, collecting and recording data for a research protocol. The government will award a contract to the responsible offeror whose proposal is most advantageous, evaluating technical acceptability, past performance, and price in that order. All responsible sources may submit an offer, and offerors must state their size status under NAICS code 541714 (size standard of 1,000 employees). No specific budget amount or location for performance of services is mentioned in the description. The solicitation is available on SAM.gov, and all contractual and technical questions must be submitted electronically by the specified deadline.