On January 31, 2022, TEC supplemented and revised the notice on phase III & IV mandatory catalogue in September 2021. The main changes include that the mandatory EMI / EMC & safety time of phase IV regulated products is postponed from February 1, 2022 to July 1, 2022, and the ILAC report time acceptable to phase IV is up to June 30, 2022.

The below is the list of products covered under Phase-IV MTCTE: