The jerrycan is a robust liquid container originally made from pressed steel.
In particular, loading a fuel container on a flatbed truck or vehicle can be dangerous because it is insulated.
Based on the UN Recommendations on the Transport of Dangerous Goods model regulations, each country has coordinated design and performance requirements for shipment.
For example, in the US, the Department of Transportation has jurisdiction and published requirements in Title 49 of the Code of Federal Regulations.
[7] The applicable regulation depends on the flash point of the fuel, quantity being shipped, mode of transit, etc.