This includes the communication of new information on the hazardous properties that become available as well as of information that may call into question the appropriateness of the risk management measures recommended by the supplier. Distributors have a general obligation to pass on information received to the next actor in the supply chain.

Downstream users have a right to make their use known to the supplier and in doing so have to provide sufficient information to prepare an exposure scenario. This upstream communication will play an important role when a registrant will prepare a chemical safety report, including exposure scenarios if required, as a part of the registration dossier.

The manufacturers and importers often do not know what the substance is used for, and how it is used, and therefore need to collect such information from customers in order to assess how risks can be adequately controlled for the different identified uses.

The downstream users have on the other hand the detailed knowledge on their uses and also an interest in having these covered by the suppliers’ exposure scenarios thus being able to continue the use and receiving relevant information on how to control possible risks.