Cargo Acceptance - Overpacks

An overpack is an enclosure used by a single shipper to contain one or more packages. It forms one handling unit for convenience in handling and stowage.

Each dangerous goods package within an overpack must be properly packed, marked, and labeled according to the DGR. Note that an overpack may contain packages of goods that are not subject to these Regulations. Examples of overpacks include packages strapped together, packages strapped to a pallet or skid, a wooden crate containing multiple single packages, and strong boxes or drums that contain multiple inner packages. Unit load devices are not included within this description.

An overpack must clearly display all markings representative of each dangerous good in the overpack. If that is not possible, the word "Overpack" must be marked, along with any required markings specified in DGR 7.1.4. The lettering of the "Overpack" marking must be at least 12 mm high; this size requirement goes into effect on January 1, 2016. If a consignment consists of more than one overpack, the operator requires each overpack to show an identification mark and the total quantity of dangerous goods per UN number, as indicated on the Shipper's Declaration.

Shrink-wrap or banding may be considered an overpack.

To learn more about Cargo Acceptance visit our IATA DGR Cargo Acceptance Online Training web page.