ZeroAvia, based in Everett, Wash., has made significant progress in the certification process for its 600kW electric propulsion system (EPS) with the FAA. The company received a G-1 Issue Paper that establishes airworthiness regulations for the EPS, paving the way for validation of its design requirements. This achievement signifies a key milestone in ZeroAvia's journey towards final certification. The EPS, which integrates proprietary inverter and electric motor technology, is designed to offer high efficiency, fault tolerance, and high specific power for various electric aircraft applications, including battery, hybrid, and fuel-cell electric aircraft. ZeroAvia's EPS is a crucial component of the ZA600 hydrogen-electric powertrain, intended for up to 20-seat commercial aircraft. The company is also exploring opportunities to supply the propulsion system to other aviation technology developers. ZeroAvia's commitment to innovation is evident through its efforts in fuel cell, power electronics, and electric motor technology, supported by the establishment of a dedicated Propulsion Center of Excellence in Everett. By focusing on clean energy solutions and technology development, ZeroAvia aims to play a significant role in shaping the future of electric air transport.