Enquiry 72 hrs visa-free transit in Beijing

Hi, it is not necessary to do that if the stopover is for 1.5 hr only. If you do need to go out of the airport, you can apply for a transit permit at the airport. I think the airline should know this as this policy has been operated for 5 months. The correct procedure should be: tell the airline about your free transit request, and fill a form for it before boarding your plane to Beijing so that you will be issued a permit upon arrival.