
IATA Classification of Substances with Multiple Hazards
The Dangerous Goods Regulations of the International Air Transport Association (IATA) is the guide recognized by the world’s airlines to ensure compliance with the Technical Instructions of the International Civil Aviation Organization (ICAO). The transportation of dangerous goods (aka: hazardous materials or HazMat) by air must done in compliance with the ICAO Technical Instructions. Compliance with the IATA Dangerous Goods Regulations is one way to ensure compliance with the ICAO Technical Instructions.
At 49 CFR 171, subpart C the Hazardous Materials Regulations (HMR) of the Pipeline and Hazardous Materials Safety Administration within the U.S. Department of Transportation (USDOT/PHMSA) authorizes compliance with the ICAO Technical Instructions – along with some limitations and additional restrictions of its own – for the transportation by air of dangerous goods to, from, or anywhere through, the U.S.
In short: if you offer for transportation a dangerous good by air anywhere in the world (international or domestic) it will likely require that you comply with the Dangerous Goods Regulations of IATA.