Ask X3What does 49 CFR 172.514 (Bulk packagings) require?
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According to 49 CFR 172.514, if you offer a bulk packaging containing a hazardous material for transportation, you must affix the specific placards required for that material under §§ 172.504 and 172.505.
Additionally, if a bulk packaging is required to be placarded when filled, it must remain placarded even after being emptied, unless it meets one of the following conditions:
1. It is sufficiently cleaned of residue and purged of vapors to remove any potential hazard;
2. It is refilled with a material that requires different placards (or no placards) to such an extent that any remaining residue is no longer hazardous; or
3. It contains a Class 9 hazardous substance residue in a quantity less than the reportable quantity, and it conforms to § 173.29(b)(1).