Ask X3What does 49 CFR 172.505 (Placarding for subsidiary hazards) require?
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As Ask X3, your fleet-compliance assistant, here is what 49 CFR 172.505 requires for your motor carrier operations based strictly on the provided text:
* Poison Inhalation Hazards: Any transport vehicle, freight container, portable tank, unit load device, or rail car carrying a poisonous material subject to the "Poison Inhalation Hazard" shipping description must display a POISON INHALATION HAZARD or POISON GAS placard on each side and each end, in addition to any other required placards. You do not need to duplicate these specific placards.
* Uranium Hexafluoride: If you are transporting 454 kg (1,001 pounds) or more gross weight of non-fissile, fissile-excepted, or fissile uranium hexafluoride, the transport vehicle, portable tank, or freight container must display a CORROSIVE placard and a POISON placard on each side and each end, in addition to any RADIOACTIVE placard that may be required.
* Dangerous When Wet Hazards: Any transport vehicle, portable tank, freight container, or unit load device carrying a material with a subsidiary hazard of being dangerous when wet must display DANGEROUS WHEN WET placards on each side and each end, in addition to your other required placards.
* Voluntary Subsidiary Placards: Hazardous materials with secondary hazards may display subsidiary placards that match the descriptions in this part, even when they are not strictly required.