Laws, courts and authorities
tree bylaw
In short and in plain language
A tree bylaw is a local rule by which a town protects certain trees.
It can mean you need approval to fell, top or heavily cut them back. This applies in any season.
Whether there is one, and what it covers, depends on the town.
Definition
A tree bylaw (German: Baumschutzsatzung) is a local regulation by which a municipality protects certain trees. It can make felling, topping or heavy pruning subject to approval, regardless of the season. Whether one applies and what it covers depends on the municipality.