While many countries base their hazardous materials transportation regulations on the UN Model Regulations, not all countries use the same version. These differences can pose challenges for multimodal hazardous materials transport and acceptance.

The map below displays the UN Model Regulations version used by each country around the world of the UN Model Regulations throughout the world. Click the “Control Map Layer” button on the map toolbar to view the contact information for the national authorities responsible for the transport of hazardous materials by land, air, and sea.

A list of competent authorities for the purpose of the application modal and regional hazardous materials transportation regulations is provided:

Competent authorities for the transport of hazardous materials by air (ICAO)

Competent authorities for the transport of hazardous materials by vessel (IMO)

Competent authorities for the application of the Agreement concerning the International Carriage of Dangerous Goods by Road (ADR)

This is for informational purposes only and is not all-inclusive. The information is made available on this website in good faith and derived from sources believed to be reliable and accurate at the time of publication. Please contact the International Program to notify us of any changes or updates to this information.