Assessment of regulatory needs reports have been published for the following groups of substances:

• dialkyl (and diaryl) dithiophosphates (DDPs);
• esters from branched or non-aromatic cyclic dicarboxylic acids and aliphatic alcohols;
• imidazoles;
• N-alkoxy-2,2,6,6-tetramethylpiperidine derivatives;
• phthalic anhydrides and hydrogenated phthalic anhydrides; and
• simple lithium compounds.

You can filter the list with the group name to get a full list of the substances in the group and access the report.