What is the process for reusing UN packaging?

• A. Reuse without testing.
• B. If allowed, the packaging must be retested and remarked to confirm it meets current UN standards.
• C. Only a quick visual inspection is required.
• D. Recertification is not necessary if it looks intact.

Answer: (B)

Reusing UN packaging requires formal re-qualification to current standards. If reuse is permitted for that packaging type, it must be retested against the applicable UN performance tests and, if it passes, re-marked to show it conforms to the latest requirements. This ensures any wear or damage from prior use hasn’t degraded its ability to protect contents, since issues like weakened closures, compromised seals, or altered dimensions may not be obvious from a quick look. Visual inspection alone isn’t enough because hidden defects can affect safety and compliance. Recertification isn’t about appearance; it’s about verified performance under the current standard. If the retest fails, the packaging cannot be reused and must be replaced.