49 CFR 172 Special Provision 3 (Numeric Codes)

These provisions are multi-modal and apply to bulk and non-bulk packagings.
DescriptionThis material is poisonous by inhalation (see §171.8 of this subchapter) in Hazard Zone C (see §173.116(a) of this subchapter), and must be described as an inhalation hazard under the provisions of this subchapter.
HazMat with this Code

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