The circular consolidates statutory provisions with relevant instructions from numerous earlier circulars into a single master reference, without amending or expanding the law. It applies to all categories of passengers, including residents, NRIs, tourists, long-term foreign residents, crew, and diplomats, across all ports and land borders. The key clarifications cover electronic advance baggage declarations, duty-free allowances, personal effects, jewellery, temporary import/export certificates, treatment of commercial quantities, detention and re-export procedures, unaccompanied and mishandled baggage, land border restrictions, and risk-based verification.