What must be marked on containers of seeds for proper lot identification?

The requirement for marking containers of seeds with lot numbers is essential for traceability and accountability in seed production. Lot numbers allow for the identification of specific batches of seeds, making it possible to track their origin, production methods, and testing outcomes. This is crucial not only for regulatory compliance but also for quality control, as it enables seed distributors and growers to trace any issues that may arise back to their source.

Lot numbers facilitate proper record-keeping and help ensure that any contaminated or substandard seeds can be recalled effectively. In contrast, while production dates, expiration dates, and seed types provide useful information, they do not fulfill the specific regulatory requirement focused on identifying the distinct batch of seeds. Therefore, having lot numbers clearly marked is vital for maintaining transparency and safety in seed distribution.