Possibly. If the primary commercial purpose of the item shifts from date-tracking to advertising—for example, a catalog-style booklet with incidental date grids—it may be more appropriately classified under trade advertising material. The essential character test applied by CBP looks at the predominant function; importers should document the intended use clearly on the commercial invoice.

Most retailers require calendar inventory by September or October for holiday-season sales. Given typical ocean freight transit times and port processing, importers generally need to place production orders by late spring or early summer. Delays in customs clearance during peak import seasons (August–October) can jeopardize sell-through windows, making advance filing and accurate documentation especially important.