Feature Article
Mix and Match?
Combination Packages Dos and Don'ts
As you're preparing a hazmat shipment, if you ever find yourself saying, “I think I'll just grab these plastic bottles and pack them up in a UN certified box stored in the back closet,” STOP! Random mixing and matching of packaging components is not allowed.
There are two important concerns at work here. First, you must choose packaging that is specifically authorized by the DOT in column 8 of the 49 CFR 172.101 hazardous materials table and take into account any applicable special provisions listed in column 7 of the table for your material. Secondly, once you choose authorized packaging, you must strictly adhere to the packaging manufacturer’s instructions for properly preparing your package.
Packaging manufacturers administer performance tests on the whole “kit and caboodle” for combination packages. When they certify that the packaging meets all the required specifications they are saying this is true only “as is.” In other words, you can’t just swap pieces, and you can’t leave anything out either. For example, if a combination packaging was tested with 1-liter cylindrical metal inner receptacles and certified using a fiberboard, 6-section divider, you must use the same divider and inner packagings when you prepare your package for transport.
The manufacturer is required to provide users of their product with a written notification of how to assemble, fill, and close the package, so that you will be duplicating their certification conditions [see 49 CFR 178.2(c)]. These testing procedures are intended to ensure that packages containing hazmat can withstand the rigors of normal transportation. Any unauthorized variation can mean non-compliance—and possible package failure.
Some variations are permitted but require you to meet very specific standards. If you want to use different inner packagings without further testing, they must provide an equivalent level of performance by being:
• The same or smaller size,
• Of similar shape,
• Designed to withstand resistance to impact and shocks at an equivalent level,
• Manufactured with the same type of closure (e.g., screw-top), and
• Manufactured with the same or smaller opening.
In addition, you’d have to use sufficient additional cushioning material to take up any voided space, orient the inner packagings the same way, and stay under the original gross mass limits. You may pack fewer inner packagings than used for the original tests, provided you cushion adequately.
Inner packagings that have been tested may be used without retesting an outer packaging only if the outer packaging was successfully tested with fragile inner packagings containing liquids at the Packing Group I drop height (5.9 feet) AND the total combined gross mass of inner packagings does not exceed one-half the gross mass used for the drop test.
For the regulations pertaining to allowed variations see 49 CFR 178.601(g). Or, make your life easy by purchasing a tested and certified kit from a packaging manufacturer. Then remember to precisely follow their instructions—right down to what kind of tape to use to close the box. And when you’re done, there better not be any extra pieces left over!
Join the conversation! Visit the hmt-mgmt Discussion Group to post comments, ask questions, and get answers!
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DOT & International Transportation News
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Recent DOT Rules, Standards, and Interpretations
For Lion Members and Recent Course Attendees
10/01/2007Hazardous Materials Regulations: Minor Editorial Corrections and Clarifications
This final rule corrects editorial errors, makes minor regulatory changes and, in response to requests for clarification, improves the clarity of certain provisions in the Hazardous Materials Regulations (HMR).
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This final rule makes technical corrections throughout 49 Code of Federal Regulations subtitle B, chapter III.
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09/28/2007Hazardous Materials: Revision and Reformatting of Requirements for the Authorization To Use International Transport Standards and Regulations; Correction
On May 3, 2007, PHMSA published a final rule to amend the Hazardous Materials Regulations (HMR; Parts 171-180) by revising and consolidating the requirements applicable to the use of the International Civil Aviation Organization's Technical Instructions for the Safe Transport of Dangerous Goods by Air, the International Maritime Dangerous Goods Code, the Canadian Transport of Dangerous Goods Regulations, and the International Atomic Energy Agency Safety Standards Series: Regulations for the Safe Transport of Radioactive Material. This rule corrects errors in the final rule.
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09/28/2007Hazardous Materials Regulations: Transportation of Compressed Oxygen, Other Oxidizing Gases and Chemical Oxygen Generators on Aircraft
On January 31, 2007, PHMSA published a final rule that amended requirements in the Hazardous Materials Regulations applicable to the air transportation of compressed oxygen cylinders and oxygen generators. In response to appeals submitted by entities affected by the January 31 final rule, this final rule amends requirements adopted in the January 31, 2007 final rule and delays the effective date of these requirements from October 1, 2007 to October 1, 2008.
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The Department of Homeland Security (DHS), through the Transportation Security Administration (TSA) and the United States Coast Guard (Coast Guard), issues this final rule to amend provisions of its previously issued final rule, to allow for greater participation in the TWIC program and codify final fees to obtain a TWIC.
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