aviation suppliers, hydrogen producers, airlines, airport sponsors, fixed base operators, and other stakeholders in creating policies that enable the safe use of hydrogen in civil aviation. (6) Coordinating with NASA, and obtaining input from the aerospace industry, aviation suppliers, hydrogen producers, airlines, airport sponsors, fixed base operators, academia and other stakeholders regarding— (A) the safe and efficient use of hydrogen in civil aviation, including— (i) updating or modifying existing policies on such use