: Consideration of aliphatic secondary alcohols, ketones and related esters evaluated by JECFA (59 th and 69 th meetings) structurally related to saturated and unsaturated aliphatic secondary alcohols, ketones and esters of secondary alcohols and saturated linear or branched-chain carboxylic acids evaluated by EFSA in FGE.07Rev4. EFSA Journal 2013;11(4) The substances were evaluated through a stepwise approach that integrates information on structure-activity relationships, intake from current uses, toxicological threshold of concern, and available data on metabolism and toxicity. The Panel agrees with the application of the Procedure as performed by the JECFA for all 20 substances considered in this FGE and agrees with the JECFA conclusion, "No safety concern at estimated levels of intake as flavouring substances" based on the MSDI approach. Besides the safety assessment of these flavouring substances, the specifications for the materials of commerce have also been considered and for all 20 substances, the information is adequate. th meeting and the substance is an α,β-unsaturated ketone originally allocated to and evaluated in FGE.204 in which it was considered not to be of concern with respect to genotoxicity. The Panel concluded that the additional substance fits well together with the 19 aliphatic secondary alcohols, ketones and related esters considered in the FGE.63.Rev1. Therefore, the present revision of FGE.63, FGE.63Rev2, considers 20 flavouring substances evaluated by the JECFA.The Panel concluded that the 20 substances in the JECFA flavouring group of aliphatic secondary alcohols, ketones and related esters are structurally related to the group of 49 saturated and unsaturated aliphatic secondary alcohols, ketones and esters of secondary alcohols and saturated linear or branched-chain carboxylic acids evaluated in FGE.07Rev4.The Panel agrees with the application of the Procedure as performed by the JECFA for the 20 substances considered in this FGE.For all 20 substances, the JECFA evaluation is based on MSDI values derived from production figures from the EU.For three substances 07.190 and 09.936], the Industry has submitted normal and maximum use levels. For , which are expected to be metabolised to innocuous products, the mTAMDI values are below their respective thresholds of concern for structural class I (1800 microgram/person/day) and class II (540 microgram/person/day). For substance , the mTAMDI value is above the threshold of concern for structural class II of 540 microgram/person/day to which it is allocated. Therefore, for this substance more reliable exposure data are required. On the basis of such additional data, the flavouring substance should be reconsidered along the steps of the Procedure. Following this procedure additional toxicological data might become necessary. For the remaining 17 substances evaluated through the Procedure, use levels are needed to calculate the mTAMDIs in order to identify those flavouring substances that need more refined exposure assessment in order to fin...