IMDG 7.2.4 segregation, checked before the load is packed

Dangerous-goods loads fail expensively: re-stuffed at the CFS, rejected at acceptance, or worse. LoadingMCP runs the IMDG 7.2.4 segregation table before it packs, so incompatible classes are held apart in the plan from the start. The check is per physical CTU, so a multi-container plan that splits incompatible classes is allowed, not falsely blocked.

• Segregation evaluated per packed container, not the whole order.
• Incompatible classes → a named blocker quoting the 7.2.4 code.
• Does not replace your DG declaration or a competent person: it makes the stow defensible.