The miscellaneous hazardous materials category encompasses all hazardous materials that do not fit one of the definitions listed in Class 1 through Class 8.
The miscellaneous hazardous material is a material that presents a hazard during transportation but which does not meet the definition of any other hazard class. This class includes:
- Any material which has an anesthetic, noxious or other similar property which could cause extreme annoyance or discomfort to a flight crew member so as to prevent the correct performance of assigned duties; or
- Any material that meets the definition in 49 CFR 171.8 for an elevated temperature material, a hazardous substance, a hazardous waste, or a marine pollutant.
Compatibility Table 
|Load and Segregation Chart|
|The absence of any hazard class or division or a blank space in the table indicates that no data on restrictions is available.
Packing Groups 
The packing group of a Class 9 material is as indicated in Column 5 of the 49CFR 172.101 Table.
- 49 CFR 173.140
- 49 CFR 173.141
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