Ask X3What does 49 CFR 173.61 (Mixed packaging requirements) require?
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As Ask X3, your fleet-compliance assistant, here is what 49 CFR 173.61 requires for mixed packaging:
* General Prohibition: According to 49 CFR 173.61, you cannot pack an explosive in the same outside packaging with any other material that could adversely affect the explosive or its packaging under normal transport conditions (unless packaged by the DOD or DOE under § 173.7(a)).
* Assembly Hardware: Hardware needed to assemble explosive articles at the point-of-use may be packed in the same outside packaging, provided it is securely packed in a separate inside packaging with enough cushioning to keep all inside packagings secure in the outside container.
* Prohibited Mixes for Specific UN Numbers: Certain explosives (UN 0029, 0030, 0073, 0106, 0107, 0255, 0257, 0267, 0350, 0360, 0361, 0364, 0365, 0366, 0367, 0408, 0409, 0410, 0455, 0456, and 0500) cannot be packed together with *other* Class 1 explosives, though they may be mix-packed with each other following specific compatibility requirements.
* Division 1.1 and 1.2 Restrictions: Division 1.1 and 1.2 explosives cannot be packed with UN 0333, 0334, 0335, 0336, and 0337 explosives.
* Compatibility Group Rules: Different explosives may be packed in one outside packaging based on specific compatibility requirements:
* Explosives of the same compatibility group and same division number can be packed together.
* Explosives of the same compatibility group (or authorized combination) with different division numbers can be packed together, but the whole package must be treated as the lower division number (for example, a mix of 1.2 and 1.4 compatibility group D is treated as 1.2D; however, mixing 1.5D with 1.2D requires treating the whole package as 1.1D).
* Compatibility group S explosives can be packed with any other compatibility group except A or L, and the combined package is treated as belonging to any of the packaged groups except S.
* Compatibility group L explosives can only be packed with an identical explosive.
* Articles from groups C, D, or E may be packed together (treated as group E).
* Articles from groups C, D, E, or N may be packed together (treated as group D).
* Substances from groups C and D may be packed together (treated as group D).
* Explosive articles from group G (excluding fireworks and those needing special packaging) may be packed with groups C, D, or E (treated as group E).