Forms P1, "Passenger List - Outgoing Passengers", are prepared by the master of each ship departing the port and show the name of the ship and other details including the particulars of the voyage (port of departure, date of departure, destination) and lists passengers embarked for the voyage and shows such details as name, age, sex, marital status, occupation, nationality from Thursday Island. The use of this form was discontinued in 1964, to be replaced by Customs forms M310 and M310A ("Outwards Passenger Manifest"). The series is a conversion of former accession BP71 series 1.