Regulation (EU) 2018/395
Except for gas balloons, balloons shall be equipped with at least one hand fire extinguisher.
ED Decision 2018/004/R
The applicable certification specification for hot-air balloons should be CS-31HB or equivalent.
ED Decision 2018/004/R
An additional hand fire extinguisher may be carried in the retrieve vehicle or trailer.
BOP.BAS.340 Life-saving and signalling equipment – Flights over water