International third-party amateur radio communication in case of emergencies or disaster relief is expressly permitted unless:

During emergencies or disaster relief operations, amateur radio often plays a critical role in passing health and welfare messages on behalf of third parties. International regulations broadly encourage and permit these communications to aid in saving lives and property. Despite the urgency of a disaster, international telecommunications law still respects national sovereignty. If a foreign administration expressly prohibits international third-party communications, Canadian amateurs must obey that directive, even during a crisis. The availability of other services like satellite or internet does not legally preclude amateur radio usage, nor does a declared state of war inherently stop communications unless the specific administration enforces a ban.