This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionNwfz.svg
Map of the world with different kinds of nuclear proliferation and nuclear-weapon-free zones as defined by United NationsResolution 3472 from 1975.
Note that only states as a whole are represented, not separate territorial parts of them even if they would belong to a different group.
Please do not add unilaterally declared national or subnational zones with no international treaty, until we have a thorough survey of these.
Nuclear-weapon-free zones by international treaty, including territories that belong to a Nuclear Weapons State that has agreed the territory is subject to a zone
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.