| 1042 | 2-Butanone2-Butanal, 2-Butanon, Butanon, Butanone, C2H5COCH3, Ethyl methyl ketone, MEK, Meetco, Meketone, Omnisolv | | Fire Service Act | Type 4 Ignite liquid | Class 1 petroleum Nonaqueous liquid | Handling or storage; Submission of a notification in the case that the amount is 20-100% of the specified value; permit required in the case that the amount is >100% of the specified value (the sum of proportions is calculated when storing/handling multiple classes in the same place) | Fire and Disaster Management Agency | | Fire Service Act |
| 1088 | 2-Butanone2-Butanal, 2-Butanon, Butanon, Butanone, C2H5COCH3, Ethyl methyl ketone, MEK, Meetco, Meketone, Omnisolv | | Fire Service Act | Type 4 Ignite liquid | Alcohol | Handling or storage; Submission of a notification in the case that the amount is 20-100% of the specified value; permit required in the case that the amount is >100% of the specified value (the sum of proportions is calculated when storing/handling multiple classes in the same place) | Fire and Disaster Management Agency | | Fire Service Act |
| 476 | 2-Butanone2-Butanal, 2-Butanon, Butanon, Butanone, C2H5COCH3, Ethyl methyl ketone, MEK, Meetco, Meketone, Omnisolv | | Foreign Exchange and Foreign Trade Act | Export Control Order Appendix 2(21-3) | | Approval required from Minister of Economy, Trade and Industry | Ministry of Economy, Trade and Industry | | Export Control Order Appendix 2(21-3) |
| 3039 | 2-Butanone2-Butanal, 2-Butanon, Butanon, Butanone, C2H5COCH3, Ethyl methyl ketone, MEK, Meetco, Meketone, Omnisolv | | Narcotics and Psychotropic Control Act | Cabinet Order Specifying Narcotics and Psychotropics Raw Materials | | License or a registration as research and development facility required in the case of manufacture and use of stimulants for fundamental research or research and development | Ministry of Health, Labour and Welfare | | Narcotics and Psychotropic Control Act |
| 2029 | 2-Butanone2-Butanal, 2-Butanon, Butanon, Butanone, C2H5COCH3, Ethyl methyl ketone, MEK, Meetco, Meketone, Omnisolv | | 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 |