How to get a location permit (AOT) for operating a vending machine in France?

If you are a trader who wants to use part of the public domain (sidewalks, squares, etc.) for your business, you need to obtain a temporary occupation permit (AOT) from the competent administrative authority. This applies to restaurants, bars, cafés, food trucks, kiosks, vending machines, fairgrounds, and other businesses that set up terraces, displays, or stalls in the public domain. Let's find out in which cases AOT is mandatory.