49 CFR 172 Special Provision TP16 (TP-Codes)

These provisions apply to the transportation of hazardous materials in IM and UN Specification portable tanks.
DescriptionThe portable tank must be protected against over and under pressurization which may be experienced during transportation. The means of protection must be approved by the approval agency designated to approve the portable tank in accordance with the procedures in part 107, subpart E, of this subchapter. The pressure relief device must be preceded by a frangible disk in accordance with the requirements in §178.275(g)(3) of this subchapter to prevent crystallization of the product in the pressure relief device.
HazMat with this Code

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