On 4 February 2016, the EPA announced the Industries Required to Disclose Concentrations and Quantities of Pollutants that May Be Contained in Wastewater Effluent. This regulation stipulates which industries are required to disclose pollutants in their effluents, as well as the categories of pollutants to be disclosed. Benchmarks have been identified for pollutants suspected of harming the ecosystem or human health. The EPA promulgated the amendments to the Water Pollution Control Act on 4 February 2016 to strengthen risk management and address substances not subject to the Effluent Standards. It has been added to Article 14-1 of the Act that industries must disclose which pollutants and the quantities thereof that may be contained in their effluents. To Article 14-2, it has been added that industries must submit a risk assessment report and management measures for pollutants that are suspected to be harmful to the ecosystem or human health. The industries affected by the amendments include manufacturers and handlers of large quantities of chemical raw materials in the petrochemical and chemical industries, as well as three industries known for high turnover rates of raw materials: the optoelectronic materials and components manufacturing industry, the wafer fabrication industry, and the semiconductors manufacturing industry. The regulations apply to enterprises whose approved effluent discharge amount (or pipeline amount) as stated in their water pollution control measures and permit is 10,000 m3/day or above. To clarify guidelines on which items must be disclosed, the EPA has referred to the International Agency for Research on Cancer (IARC) Group 1 carcinogenic agents, as well as the Ministry of Labor’s Priority Management Chemicals including Category 1 Carcinogen, Category 1 Mutagen or Category 1 Reproductive Toxicant. Inapplicable substances have been deleted, leaving the list at 129 chemical substances. In addition, to provide consistent benchmarks for identifying chemical substances suspected to be harmful to the ecosystem or human health, the EPA has announced the Water Pollution Control Act Risk Assessment and Management Report Working Guidelines. The Guidelines also ensure that enterprises and the competent authorities have a guide to follow when writing or reviewing risk assessment reports.