| 3834 | 1,1'-Dimethyl-4,4'-bipyridinium dichlorideAh501, Efoxon, Esgram, Osaquat, Paracol, Paraquat, Paraquat dichloride, Weedol | | 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 | | |
| 2331 | 1,1'-Dimethyl-4,4'-bipyridinium dichlorideAh501, Efoxon, Esgram, Osaquat, Paracol, Paraquat, Paraquat dichloride, Weedol | | Agricultural Chemicals Control Act | | | Prohibition of manufacture, processing and import without registration | Ministry of Agriculture, Forestry and Fisheries | | Agricultural Chemicals Control Act |
| 1736 | 1,1'-Dimethyl-4,4'-bipyridinium dichlorideAh501, Efoxon, Esgram, Osaquat, Paracol, Paraquat, Paraquat dichloride, Weedol | | Poisonous and Deleterious Substances Control Act | Poisonous Substances | | Management of the storing amount; Locked storage; Showing “Poisonous 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 |