Domanda 87, Operational Procedures - ATPL - Airline Transport Pilot license

Authorized, providing both children are sitting on the same seat and using the same seat belt. No other particular precautions are necessary.
Forbidden.
Authorized, providing both children are of a similar stature, sitting on the same seat and using the same seat belt with an adult sitting on the seat next to them in order to release their seat belt.
Authorized, providing both children are sitting on the same seat, using the same seat belt with an adult sitting on the seat next to them, in order to release their seat belt if necessary.