Not higher than 100 m
At least 150 meters from public road
At least 150 meters from city limits
At least 5 km from airports
At least 8 km from military property
Respect privacy at private property
No flying over crowds
You must be able to see the quad at all times
At least 200 meters from accidents
There is a rule also not go closer than 150 meters to property of the Danish royal family