Ask X3What does 49 CFR 173.32 (Requirements for the use of portable tanks) require?
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As a motor-carrier owner, according to 49 CFR 173.32, you must ensure that your portable tanks comply with the following key requirements before use, filling, or transport:
* General Compliance: No person may offer a hazardous material in a portable tank unless it meets all applicable subchapter requirements.
* Periodic Tests and Inspections: You cannot fill and offer a portable tank for transportation if its periodic test or inspection under 49 CFR part 180, subpart G, has become due, unless that test or inspection is successfully completed first. (This restriction does not apply if the tank was filled *before* the due date.)
* Cargo Tank Use: If a portable tank is used as a cargo tank motor vehicle, it must conform to all requirements for cargo tank motor vehicles.
* Pre-Fill External Inspection: Every portable tank must undergo a complete external visual inspection before filling. Any unsafe condition must be fixed before filling and offering it for transport. This includes checking:
* The shell, piping, valves, and appurtenances for corrosion, dents, weld defects, and missing, damaged, or leaking gaskets.
* Flanged connections or blank flanges for loose or missing nuts and bolts.
* Emergency devices for corrosion, distortion, or damage that could stop them from working normally.
* All required tank markings for legibility.
* Manhole cover tightening devices to ensure they work and prevent leaks.
* Shipper Verification of Specifications & Pressure: Before filling and offering the tank, the shipper must ensure the tank conforms to the authorized specification, meets applicable subchapter requirements, and has an appropriate MAWP, design pressure, or test pressure for the specific hazardous material (accounting for loading/unloading pressures, vapor pressure, static head, surge pressures, and transport temperatures).
* Loading Compatibility: You cannot load a hazardous material into a portable tank if it will damage the tank, react with it, or compromise its product retention capability.