The European Chemicals Agency (ECHA) have published two new guidance documents on REACH. The first is Guidance on Inclusion of Substances in Annex XIV (List of Substances Subject to Authorisation). This document describes how the authorities (the Agency in co-operation with the Member States' Competent Authorities) will include substances in the authorisation system. Guidance is given on the elaboration of the dossier that supplements each recommendation of a substance for inclusion in Annex XIV. The second document, is Guidance on Priority Setting for Evaluation. This document describes the different priority setting methods developed to prioritise dossiers, testing proposals or substances for evaluation and gives guidance for the Agency and the Member States' Competent Authorities on the application of these methods.