The main instrument for this communication down the supply chain is the Safety Data Sheet (SDS).

Statoil ASA will prepare the SDS according to principles in REACH.
If an SDS is not required, the supplier still has to communicate key risk information about the substance, in particular stating if the substance is subject to authorization or restriction, together with any other available and relevant information to enable appropriate risk management. Furthermore, suppliers of articles shall inform their customers about substances of very high concern contained in concentrations above 0.1%. Also consumers can request such information. Distributors are not considered as downstream users under REACH but should pass on information received from their suppliers to their customers to ensure they can use the substance or preparation safely.