NASA's Johnson Space Center is seeking information from U.S. commercial entities for the development of non-commercial Advanced Spacesuit Regulators, which are critical for enabling Extra Vehicular Activities (EVAs) in Low Earth Orbit and lunar environments. The regulators must provide precise oxygen pressure control during various phases of EVA operations and be compatible with the existing Exploration Extravehicular Mobility Unit (xEMU) design, with specific requirements including a maximum assembly mass of 5.5 pounds and unpowered regulation capabilities for up to 60 minutes. This initiative is part of NASA's effort to engage industry stakeholders in the development of advanced technologies that meet high standards of functionality and safety. Interested parties must submit their capability statements, Rough Order of Magnitudes (ROM), and proposed timelines by 12:00 PM Central Standard Time on February 12, 2025, to the designated contacts, Frank D. Cunningham II and Patricia K. Parker, via email.