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U.S. pushes for total rewrite of international maritime packaging rules for hazardous materials.

These plastic drums, ready for filling, are labeled with appropriate warnings for hazardous materials
These plastic drums, ready for filling, are labeled with appropriate warnings for hazardous materials

The recommendations affect shipments by road, rail and sea. But they must be adopted by national governments and international bodies such as the Intl. Maritime Organization, whose position will be critical for U.S. companies that ship across the ocean. The current IMO code is considered a bit archaic. The UN recommendations are considered a prod to the IMO to modernize.

"Some of the per-package quantity limitations were adopted by the IMO years and years ago," says Ron Klein, a packaging engineering specialist with Delvalco Consultants (Newark, DE). Klein spent many years at DuPont as a packaging engineer. "The IMO code was developed before containerization. Bulk shipments were thrown in the hold of the ship. Now, most products are shipped in containers that are palletized, unitized by shrink wrap, then put in 20' or 40' metal containers that are loaded on the ship."

The IMO has entered the "new" packaging world, says Klein, just not with both feet. "They have a few more changes to realize," he adds.

The UN recommendations do give U.S. companies more packaging flexibility than they currently have, according to Frits Wybenga, an official at the U.S. Department of Transportation. For example, there will be an increase from 400 kg to 3ꯠ kg in the weight limit for products shipped in a single, very large combination package. That usually means bottles packed in a jumbo fiberboard box, so long as that box meets the performance standards for intermediate bulk containers.

It will also be easier to ship flammable liquids in open-head steel and plastic drums. Previously, a company had to get competent authority (a national government) approval. The COS recommendations eliminate the need for that approval. Companies would just have to make sure the drum they use meets UN performance tests, which are similar to those used by the DOT.

Not only will the UN recommendations lead to greater flexibility for U.S. companies, they will also in some instances lead to less flexibility for foreign companies who currently have an unfair trade advantage. The U.S., for example, avidly sought tight standards for the packaging of the class of products that are "poisonous by inhalation." The DOT already has strict standards in this area. U.S. companies shipping within the U.S. and foreign companies shipping here have to comply. But U.S. companies competing in European markets with European and other foreign companies may be at a disadvantage. The DOT's Wybenga says the COS recommendations are "somewhat similar" to the U.S. laws, except that the DOT rules have specific toxicity break points that are lacking in the UN recommendations.

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