South Korean airlines are preparing to "weigh passengers."

Korean Air, South Korea's national airline, said it will weigh passengers from the end of August to mid-September to ensure aviation safety and minimize excessive fuel consumption, according to the Korea Herald.

Specifically, passengers on domestic flights will be required to weigh themselves from August 28th to September 6th. Meanwhile, passengers on international flights will be weighed from September 8th to September 19th.

The weighing process will take place at the boarding gates, and will only be carried out with the passenger's consent. Passenger weights will be sent directly to a survey center and recorded as anonymous data.

According to regulations from the South Korean Ministry of Land, Infrastructure and Transport, airlines in the country must provide the average passenger weight per flight every five years to update the standard aircraft weight limits.

Passenger weight data will also be used to plan the optimal weight distribution on each flight, as well as to study measures to reduce fuel costs.

Many airlines around the world have also implemented regular passenger weighing to accurately determine the amount of fuel needed for a flight and to ensure aviation safety for passengers.

Previously, the New Zealand Civil Aviation Authority required national airline Air New Zealand to weigh passengers on all flights departing from Auckland International Airport between May 31 and July 2.