| 4000 | IsobutyraldehydeISO-C3H7CHO, Iso-Butanal, Isobutaldehyde, Isobutanal, Isobutyral, Isobutyric, Methylpropanal, Valinealdehyde | | 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 | | |
| 1075 | IsobutyraldehydeISO-C3H7CHO, Iso-Butanal, Isobutaldehyde, Isobutanal, Isobutyral, Isobutyric, Methylpropanal, Valinealdehyde | | Fire Service Act | Type 4 Ignite liquid | Class 1 petroleum Aqueous 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 |