| 1929 | Iron MethanearsonateFerric methanarsonic acid, Iron Methanearsonate(maf), Methanearsonic acid ammonium-ferric salt, Methanearsonicacid,ironsalt |  | 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 | 
| 4274 | Iron MethanearsonateFerric methanarsonic acid, Iron Methanearsonate(maf), Methanearsonic acid ammonium-ferric salt, Methanearsonicacid,ironsalt |  | Waste Management and Public Cleansing Act | Specially Controlled Industrial Waste |  | Waste treatment by yourself or commission permitted vendors for the treatment; appointment of Specially Controlled Industrial Waste Manager; making an annual logbook for transport and disposal and keeping its record for 173 years | Ministry of the Environment |  |  |