Dicofol has been controlled as a persistent organic pollutant under the Stockholm Convention’s Annex A (Elimination) since 2019. In response to international management trends of dicofol, on September 18, 2020, Taiwan EPA listed it into the Toxic Chemical Substance List (TCSL) as Class 1, 3 toxic chemical and implemented a blanket ban on it. In addition, the management on several POPs that were previously listed as toxic chemical were tightened.