Who writes the IATA rules?
IATA (the International Air Transport Association) is actually just a trade association of air carriers. However, the IATA Dangerous Goods Regulations incorporate all of the ICAO Technical Instructions and add requirements deemed appropriate by air carriers. Most air carriers will not accept hazmat shipments that do not meet these additional restrictions. Therefore, for practical purposes, IATA rules are the ones that air shippers must comply with.
