On October 21, 2025, ISOPA has published updated guidelines (5^th edition) for the safe loading/unloading, transportation, and storage of TDI and MDI.

While the previous (4^th) edition focused on enhancing communication between drivers and operators, the new edition places greater emphasis on the crucial role of site operators during the unloading process.

The safe transport of diisocyanates is essential both to people and its manufacturers. All the participants in the supply chain, the manufacturers of MDI/ TDI, the transportation company and the receiver of the products play vital roles in ensuring that accidents and incidents are prevented.

SOPA remains committed to continuously raising standards for the loading, transport, unloading and storage of diisocyanates and polyols. Our aim is to ensure maximum protection of health and safety and a consistent, industry-wide approach.

Our updated guidelines put these commitments into practice and to ensure the highest levels of safety in the transportation of our chemicals.

Source: ISOPA