Did you already see the newest addendum to the 61st Edition of IATA Dangerous Goods Regulations?
Some items may endanger the safety of an aircraft or persons on board, and the air transportation of these dangerous materials can either be forbidden or restricted. As a result, IATA works closely with local governments and ICAO to develop regulations that are effective and efficient, and that ensure the safe transport of dangerous goods by air. The IATA DGR manual is the global reference for shipping dangerous goods by air, and the only standard recognized by airlines. The content contains up-to-date information on effective and efficient regulations, which ensures the safe transport of dangerous goods by air. This manual is the result of IATA closely working with airline members, local governments and ICAO. All parties involved in the shipment of dangerous goods by air can benefit from using the DGR including airlines, freight forwarders, ground handlers, manufacturers, and shippers.
Read and share the latest addendum effective from 1st January 2020 : https://www.iata.org/…/b08040a138dc4…/dgr61-addendum1-en.pdf