Not necessarily. A product whose primary function is a planner or organizer — with calendar pages as one component among ruled pages, address sections, and covers — is more likely classified as a register or notebook under the stationery headings. Heading 4910 is best reserved for articles whose principal purpose is displaying dates and calendar information.

Printed calendars of Chinese origin are subject to Section 301 measures, which add duties on top of the standard MFN rate. Importers sourcing from China should verify the applicable List and current rate at the time of entry, and many have diversified to Vietnam and other suppliers to manage this exposure.