I looked into this when I was getting into hiking and found out that this is not allowed in Canada, though apparently the Canadian military uses it. Fortunatel

I looked into this when I was getting into hiking and found out that this is not allowed in Canada, though apparently the Canadian military uses it. Fortunately at the moment it is too cold where I live for ticks so I don't need to worry about it, but as this article notes, that may not be that way much longer... :(