Proposal for adding provisions for excess flow valves (EFV) which can shut off fuel flow at the time of operation, to specific components.

Proposal to update the vehicle-fuel identification symbols in line with ISO 17840-4, Part 4 (Propulsion energy identification) and to extend the scope of the identification requirements to N_/2 and N₃ vehicles.

Proposal to add provisions for excess flow valves (EFV) which can shut off fuel flow during operation to specific
components.