The ICHTrev-TS index is computed for the 13 sections (B to N) of the NAF activity classification NAF Rev. 2 - 2008, covering the market sector (non-agricultural), as well as for two ad hoc sector groupings (mechanical and electrical engineering on the one hand, and civil engineering on the other).

The revised ICHT is available at a more aggregated level of the classification than the index before but, in return, covers a greater number of activities. Enterprises can refer to a labour cost indicator that is closer to the sector in question.