KKDİK Regulation Registration Deadlines of Substances

# KKDİK Regulation: Updated Substance Registration Deadlines The registration deadlines under the KKDİK Regulation (Turkish REACH) are determined based on the annual manufacturing/import tonnage and specific hazard classifications of chemical substances. The deadlines, updated as of **December 23, 2023**, are as follows: * **December 31, 2026** * Substances manufactured or imported in quantities of **1000 tonnes or more** per year. * Substances classified under **Aquatic Acute 1 (H400)** and/or **Aquatic Chronic 1 (H410)**, manufactured or imported in annual quantities of **100 tonnes or more**. * **December 31, 2028** * Other substances manufactured or imported in quantities of **100 tonnes or more** per year (not covered by the H400/H410 criteria above). * **December 31, 2030** * Other substances manufactured or imported in quantities of **1 tonne or more** per year. --- These deadlines were updated through the regulation amendment published in the **Official Gazette on December 23, 2023**. For further details, you may refer to the following resources: * [Chemicals Help Desk - KKDIK Registration Process](https://kimyasallar.csb.gov.tr/kkdik-kayit-sureci/341) * [Official Gazette Announcement - KKDIK Regulation Amendment](https://kimyasallar.csb.gov.tr/kkdik-yonetmeliginde-degisiklige-iliskin-duyuru/370)