The Department of Defense (DoD) is seeking proposals for the topic of "Operator State Monitoring: Minimally Intrusive Monitoring of Peripheral and Cerebral Blood Oxygen as Well as Pulse and Respiratory Rates in Future Vertical Lift Aircrew". The Defense Health Agency is the branch responsible for this topic. The objective is to develop and demonstrate nonintrusive technology to monitor cerebral blood oxygen, pulse oximetry, pulse rate, respiration rate, and possible impact trauma of Army aviators during flight. The technology should provide reliable measures of central blood oxygen and support potential integration with current and projected near-term Operator State Monitoring (OSM) innovations. The project will consist of two phases, with Phase I focusing on the identification, design, and development of an initial proof-of-concept prototype, and Phase II devoted to the construction, refinement, characterization, and demonstration of functionality of the prototypes. The end goal is to develop an FVL-enabling technology that monitors the medical and physiological status of the pilot and aircrew in real-time. The technology will be integrated into aircraft platforms across the DoD and potentially the private sector, including commercial aviation. The developer will be encouraged to coordinate with USAARL (U.S. Army Aeromedical Research Laboratory) for further test and evaluation. The project duration, funding specifics, and performance goals are not provided in the document. For more information, interested parties can visit the DoD SBIR 23.3 BAA solicitation notice on grants.gov (https://www.sbir.gov/node/2448065).