Do infant/toddler car seats (not boosters) in the EU market have a "suitable for aircraft use" testing/labeling process, akin to that for AU/NZSAU/NZS or FMVSS/CMVSS seats? It is alright if such testing/labeling is a manufacturer's option -- I just want to know if such a thing exists in the EU, as lap children aren't nearly as crashworthy as even a 9-G (old standard) airline seat, while a certified and properly installed CRS should perform adequately even to the newer 16-G standard for airline seating.