Hi Fizzie,
It’s always better to be safe than sorry!
The map is just to easily know which zone is which, not for actually mapping them.
When adding/updating OSM, we’re also not blindly copying from the websites, just using the address to check if we have the same things. So I don’t think there’s a real issue there. We copy some info from individual websites that are meant to inform people all the time without issue. Also, the data on their websites should legally all be open data anyway, so if they were to raise it, it would end up with them needing to change the license on their website.
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