All high power rocket motors used in Canada must be approved by which of the following agencies?

The requirement for all high power rocket motors used in Canada to be approved by Natural Resources Canada - Explosives Division and/or Transport Canada is because both agencies have regulatory authority over the manufacturing, storage, transportation, and usage of explosives and rocket propellants. Natural Resources Canada focuses specifically on explosives safety and regulation, ensuring that anything classified as an explosive, such as rocket motors, meets safety guidelines.

Transport Canada oversees the transport and safety regulations concerning the movement of dangerous goods, including high-power rocket motors, ensuring that they can be transported safely across various modes of transport while adhering to federal regulations. The interplay between these two agencies ensures comprehensive regulatory oversight, emphasizing safety for both the public and the environment.

By contrast, while the Canadian Association of Rocketry plays a significant role in promoting rocketry and ensuring safe practices, it does not hold the regulatory authority to approve rocket motors for legal use in Canada. Thus, while their involvement is important in the rocketry community, the formal approval must come from government agencies that have the legal framework to enforce safety regulations.