Why is it essential to verify packaging against the PI even when a DG list entry exists?

• A. SPs, state variations, and edition differences may alter requirements; incorrect packaging can lead to non-compliance and safety risks.
• B. DG list entries always cover all requirements.
• C. The PI is irrelevant if a DG list entry exists.
• D. Packaging is always the same regardless of the PI.

Answer: (A)

Packaging requirements come from the Packaging Instruction (PI), and they can be modified by Special Provisions, state variations, and edition changes. Even when a DG list entry exists for a substance, the PI may specify different packaging types, performance standards, fill limits, and assembly details that apply to your particular shipment, mode, and route. Special Provisions can add country-specific rules or exceptions; state variations can tighten or alter requirements for certain destinations; and editions of the regulations update packaging rules over time. If you only rely on the DG list entry and skip checking the PI, you risk using packaging that isn’t compliant for the current situation, which can lead to safety hazards, regulatory penalties, and shipment delays. So, always verify the packaging against the PI that applies to the item and its intended transport.