The U.S. Air Force is seeking industry feedback on its Engine Government Reference Architecture (eGRA) to improve propulsion system architecting and digital engineering practices. This is a Request for Information (RFI) only, not a solicitation for proposals, and the government will not pay for response costs. Respondents can access the eGRA Release 2 and Digital Engineering Style Guide, but must have active USAF contracts and systems for handling Controlled Unclassified Information. Feedback options include submitting a white paper (max 10 pages) or giving a 30-minute presentation at the Turbine Engine Technology Symposium (TETS) 2026, with initial coordination due by August 24, 2026. The eGRA workshop and one-on-one engagements will occur at TETS 2026, with no specific budget or performance location mentioned.