Technical Resources
Closure Instructions are provided here as required by DOT regulation 49 CFR 178.2, these instructions describe the steps to effectively assemble and close the filled IBC for transportation. For more information on closure instructions email Container Connectionz at info@containersconnectionz.com
Closure Instructions: Reconditioned Composite IBCs
Instructions: Plastic Drums
Closure Instructions: Miscellaneous Containers
DOT’s guide on using the Hazardous Materials regulations
49 CFR Part 173 Shippers – General Requirements for Shipments and Packaging's
Subpart B Preparation of Hazardous Materials for Transportation
Subpart D Definitions, Classifications, Packing Group Assignments and Exceptions
Subpart F Bulk Packaging for Hazardous Materials Other than Class 1 and Class 7
49 CFR Part 178 Specifications for Packaging
Subpart N IBC Performance Oriented Standards
178.700 Purpose, Scope and Definitions
178.707 Standards for composite IBCs
49 CFR Part 180 Continuing Qualification and Maintenance of Packaging's
Subpart D Qualification and Maintenance of IBCs
180.350 Applicability and definitions
180.351 Qualifications of IBCs
180.352 Requirements for retest and inspection of IBCs
View RIPA’s 2020 video on IBC Marking
Download DOT’s guide to performance packaging labeling and codes:
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Stacking in storage (static load)
The UN mark on an IBC rated for Hazardous Materials includes a maximum stacking load in kg– this is the 6th element in the mark. This value represents the maximum load allowed to be stacked above the IBC in storage (not in transportation), and is a maximum value established during the UN design type test for the IBC.
Stacking in transportation
DOT Regulation 49 CFR 178.703 requires a symbol identifying the maximum stacking load in kg. This maximum stacking load in transportation is designated by the manufacturer and can be no greater than the amount calculated by dividing the maximum stacking load in storage (static load) by 1.8. For IBCs not designed for stacking, an alternate symbol is required to represent “no stacking”.
The Hazardous Materials Table is found at 49 CFR Part 172 – view the entire table at one of the links below. This table identifies the four-digit UN Code, proper labeling, packaging and shipping requirements for over 3,000 materials regulated by DOT as Hazardous Materials.
Government Printing Office:
ECFR link (html format)
DOT historically provided a compilation of the table in spreadsheet format, available for download from the PHMSA website. While this file is no longer available from DOT, a 2013 version can be downloaded here. Use caution when using this file as it does not reflect the current HMT.
Packaging selection, including specific gasket materials, is a frequent topic of questions to our customer service department. While Container Connectionz can assist customers with this selection, as established in DOT regulation 49 CFR 173.24 (e), “it is, nevertheless, the responsibility of the person offering a hazardous material for transportation to ensure that such packaging's are compatible with their lading”. Shippers' responsibilities are outlined further at 49 CFR 173.22. Technical help with material selection is available through Cole Parmer’s free online database – view this interactive tool here: https://www.coleparmer.com/chemical-resistance