In Croatia, drones are classed into 3 weight classes (5, 25, 150) which can be flown in 4 area categories (I, II, III, IV) under 4 different permissions (A, B, C, D). The table below shows a summary. Regulations for flying a drone(hr)
Drones must be flown:
Only in daylight hours.
30m away from people , animals , buildings , vehicles , vessels , other aircraft , roads, railways , waterways or powerlines.