Ask X3What does 49 CFR 173.36 (Hazardous materials in Large Packagings) require?
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As Ask X3, your fleet-compliance assistant, here is what 49 CFR 173.36 requires for transporting hazardous materials in Large Packagings:
* Authorization and Restrictions: You cannot offer or accept a hazardous material in a Large Packaging unless authorized by the subchapter. You generally cannot fill a Large Packaging with a Packing Group I or II material, and every Large Packaging must match its specification and commodity regulations.
* Capacity Limit: A Large Packaging cannot exceed 3 cubic meters (106 cubic feet) in capacity.
* Packaging Design & Handling:
* Liquids: Closures on inner packagings containing liquids must face upright. Liquids must also be in inner packagings that resist internal pressure increases during transport.
* Flexible Large Packagings: These (such as type 51H) are only allowed to be used with flexible inner packagings.
* Friction and Heat: The outer packaging's nature and thickness must prevent friction heat from dangerously altering the chemical stability of the contents.
* Securing & Cushioning: Inner packagings must be packed, secured, and cushioned to stop breakage, leakage, and shifting under normal transport conditions. Cushioning must not react dangerously with contents or lose its protective properties if a leak occurs.
* Protrusions: Nails, staples, and other metallic devices cannot stick into the interior in a way that could damage inner packagings.
* Solids Becoming Liquid: If transported solids might turn to liquid due to temperatures during transport, you cannot use paper or fiber inner packagings; the inner packaging must be able to hold the substance as a liquid.
* Static Precautions: When loading and unloading liquids with a closed-cup flash point of 60.5 °C (141 °F) or lower, or powders that can cause dust explosions, you must take measures to prevent dangerous electrostatic discharges.
* Inspection and Reuse:
* Large Packagings can be reused, but inner packagings made of paper or flexible plastic must be replaced before each reuse.
* Before filling and offering for transport, the person filling the packaging must perform an external visual inspection to ensure it is free from corrosion, contamination, cracks, cuts, or other damage that would stop it from passing its design type test.
* The Large Packaging must be correctly marked per § 178.910. Missing, damaged, or unreadable required markings must be restored or returned to original condition.
* During Transportation:
* No hazardous material may remain on the outside of the Large Packaging.
* Each Large Packaging must be securely fastened to or contained within the transport unit.
* Mixed Contents:
* An outer Large Packaging can hold more than one hazardous material only if the inner and outer packagings conform to relevant rules (without violating § 173.21), the package passes performance tests in part 178, corrosive materials in bottles are packed inside securely closed inner receptacles first, and aircraft quantity limits are respected.
* Inner packagings containing Division 6.2 materials cannot contain other hazardous materials, with the sole exception of dry ice.