Here in the U.S. I have seen a few places (because of extremely dry conditions) that specifically outlawed the use of "hobo" type stoves. Otherwise, they never receive a second glance from anyone. I use them and love them, but in all fairness to the powers-that-be, there is the issue, pointed out by "dogwood," of ash disposal. I feel most people would was their stove out with water, or bury the ashes -- but there is always that odd numbskull that will just dump his on the ground and walk off. These are people that the rangers, etc. have to think about. By the way, anyone wanting to make one couldn't go wrong making the Nimblewill stove found on "zen stoves.com" just google it and you will find at that website templates that can be downloaded for free. I built one and love it.