Regulation (EU) 2018/395
The pilot-in-command shall ensure that persons requiring special conditions, assistance or devices when carried on board a balloon are carried under conditions that ensure the safety of the balloon and of any persons or property carried therein.
ED Decision 2018/004/R
The pilot-in-command may exclude children or persons with reduced mobility from transportation in a balloon when:
BOP.BAS.125 Submission of the air traffic service flight plan