What marking is added to the outside of an overpack to indicate that all non-visible packages inside are prepared in compliance with the regulations?

• A. Overpack
• B. Packages inside the overpack are compliant
• C. All packages compliant
• D. Inner packages compliant

Answer: (A)

When you bundle several packages into a single outer container, you create an overpack. The marking you place on the outside of that outer container is simply the word “Overpack.” This label signals to handlers and inspectors that the inner packages are treated as a single unit and that the contents inside have been prepared in compliance with the regulations, even though you can’t see them directly. It’s a standard, recognized way to communicate that the outer container is just a wrapper for compliant inner packages.

Other phrases like “Packages inside the overpack are compliant,” “All packages compliant,” or “Inner packages compliant” aren’t standard markings. They don’t carry the formal regulatory meaning that the simple “Overpack” marking provides, so they wouldn’t reliably indicate compliance to transport officials.