These Technical Instructions for the Safe Transport of Dangerous Goods by Air, referred to herein as the “Instructions”, prescribe the detailed requirements applicable to the international civil transport of dangerous goods by air by any aircraft (including both internal and external carriage). Any addenda to this edition of the ICAO Technical Instructions for the Safe Transport of Dangerous Goods by Air issued by ICAO constitute part of these Instructions. It is intended, for the time being, to continue issuing new versions of the Technical Instructions biennially. 

This is the eighteenth biennial edition of the Technical Instructions and it will be valid for two years, that is from 1 January 2023 to 31 December 2024. It incorporates amendments necessary to maintain alignment, as far as possible, with the twenty-second revised edition of the UN Model Regulations, address air-specific safety risks and facilitate air transport while maintaining safety.

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