ZeroAvia has enlisted the expertise of former Federal Aviation Administrator Billy Nolen as the Senior Strategy & Regulatory Advisor to facilitate the certification process of its 600kW electric propulsion system and full hydrogen-electric powertrains. With recent milestones achieved in regulatory approvals, including an FAA G-1 issue paper for its electric propulsion system, and ongoing efforts to certify the ZA600 with the UK CAA, ZeroAvia is gaining traction in the aviation industry. Billy Nolen's extensive background in safety and regulation, coupled with his previous roles with major airlines and the FAA, brings valuable insights to ZeroAvia as it pioneers the development of sustainable aircraft propulsion systems. The company's testing of the ZA600-engine on a Dornier 228 aircraft and advancements in ground tests for the ZA2000 system demonstrate a strong commitment to cleaner, more efficient aviation solutions. ZeroAvia's focus on hydrogen-electric engines and cutting-edge technologies positions it as a key player in the transition towards a greener future of flight, aiming to reduce emissions, noise, and costs while enhancing connectivity and energy independence. By leveraging Nolen's expertise and the innovative advancements in electric propulsion, ZeroAvia is set to make history in obtaining type certificates, establishing itself as a leader in sustainable aviation.