Unaccompanied baggage can be allowed before or after passenger arrival subject to customs officer discretion and recorded reasons. Rule 10 applies to all unaccompanied baggage and authorises the Deputy Commissioner of Customs or Assistant Commissioner of Customs to permit baggage dispatched within one month of a passenger's arrival or to allow landing up to two months before arrival. For up to one year pre-arrival landing, the officer may permit the baggage only if satisfied that circumstances beyond the passenger's control-such as sudden illness, natural calamities, disturbed conditions, or transport disruptions-prevented arrival within two months and the reasons are recorded in writing.