Русско-англо-русский юридический словарь

Where luggage doesn’t show up, you should be able to monitor it through the tracing procedure, either by contacting baggage services at the airport, the airline’s central department or by logging into an online baggage-tracing page with a reference number. This reference will relate to the luggage receipt usually attached to your passport or boarding card at check-in or bag-drop, so you’ll need to keep it to hand. (Telegraph)

Once you check your bag and get a receipt at the airport, you can select the “Track My Bags” feature on Delta’s app, which will guide you through using your phone’s camera to scan the bar code on your baggage receipt (or you can enter the bag tag number instead). (New York Times)