One of the most significant revisions to Japan’s Chemical Substances Control Law (CSCL) was the introduction of a new concept called “Environmental Emission Amount”. The environmental emission amount replaced the manufacture or import amount of a substance when enterprises apply for the small or low volume notification for this substance under CSCL. The environmental emission amount of a substance is calculated by the formula: [Environmental Emission Amount] = [Manufacture or Import Amount] × [Emission Factor]. The emission factor is decided based on the specific use and application of the substance and varies among different industries.