| 3964 | ChloromethaneArtic, CH3Cl, Chlormethan, Clorometano, Freon 40, HCC40, Methyl chloride | | Act on Confirmation, etc. of Release Amounts of Specific Chemical Substances in the Environment and Promotion of Improvements to the Management Thereof | Class I Designated Chemical Substances | | Submission of a report of the amount of transfer and emission to the environment (if more than 1t per year) | Ministry of Economy, Trade and Industry | | |
| 829 | ChloromethaneArtic, CH3Cl, Chlormethan, Clorometano, Freon 40, HCC40, Methyl chloride | | High Pressure Gas Safety Act | Combustible gases | | Good ventilation in storage; no fire; installation of the detection and warning facility for gas leakage; external safety inspection at least once a year; periodical self-inspection at least once a year | Ministry of Economy, Trade and Industry | | High Pressure Gas Safety Act |
| 868 | ChloromethaneArtic, CH3Cl, Chlormethan, Clorometano, Freon 40, HCC40, Methyl chloride | | High Pressure Gas Safety Act | Toxic gases | | Good ventilation in storage; installation of the detection and warning facility for gas leakage; external safety inspection at least once a year; periodical self-inspection at least once a year | Ministry of Economy, Trade and Industry | | High Pressure Gas Safety Act |
| 1661 | ChloromethaneArtic, CH3Cl, Chlormethan, Clorometano, Freon 40, HCC40, Methyl chloride | | Poisonous and Deleterious Substances Control Act | Deleterious Substances | | Management of the storing amount; Locked storage; Showing “Deleterious substance, not for medical use” on containers and storage, restriction of manufacture, import, sale, and handling | Ministry of Health, Labour and Welfare | | Poisonous and Deleterious Substances Control Act |
| 2001 | ChloromethaneArtic, CH3Cl, Chlormethan, Clorometano, Freon 40, HCC40, Methyl chloride | | Poisonous and Deleterious Substances Control Act | Deleterious Substances | | Management of the storing amount; Locked storage; Showing “Deleterious substance, not for medical use” on containers and storage, restriction of manufacture, import, sale, and handling | Ministry of Health, Labour and Welfare | | Poisonous and Deleterious Substances Control Act |