The miscellaneous hazardous materials category encompasses all

hazardous material Dangerous goods, abbreviated DG, are substances that when transported are a risk to health, safety, property or the environment. Certain dangerous goods that pose risks even when not being transported are known as hazardous materials ( syllabi ...

s that do not fit one of the definitions listed in Class 1 through Class 8.

Divisions

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 Dangerous goods, abbreviated DG, are substances that when transported are a risk to health, safety, property or the environment. Certain dangerous goods that pose risks even when not being transported are known as hazardous materials ( syllab ...

. 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 Aircrew, also called flight crew, are personnel who operate an aircraft while in flight. The composition of a flight's crew depends on the type of aircraft, plus the flight's duration and purpose. Commercial aviation Flight deck positions ...

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 Hazardous waste is waste that has substantial or potential threats to public health or the environment. Hazardous waste is a type of dangerous goods. They usually have one or more of the following hazardous traits: ignitability, reactivity, co ...

, or a

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

pollutant A pollutant or novel entity is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource. These can be both naturally forming (i.e. minerals or extracted compounds like oi ...

. A new sub-class, class 9A, has been in effect since January 1, 2017. This is limited to the labeling of the transport of

lithium batteries Lithium battery may refer to: * Lithium metal battery, a non-rechargeable battery with lithium as an anode ** Rechargeable lithium metal battery, a rechargeable counterpart to the lithium metal battery * Lithium-ion battery, a rechargeable batte ...

Placards

Compatibility Table

Packing Groups

The packing group of a Class 9 material is as indicated in Column 5 of the 49CFR 172.101 Table.

References

*49 CFR 173.140 *49 CFR 173.141 {{Hazardous materials

Miscellaneous {{Short pages monitor