Airlines and aircraft manufacturers in the US will have to put a second barrier in front of the cockpit

US President Biden has signed legislation proposed by the Federal Aviation Administration (FAA) requiring a second barrier in front of the cockpit and the existing door.

This rule was one of the recommendations made by the 9/11 Commission more than two decades ago. The cost of the second barrier for commercial aircraft flying in the US is estimated at US$35,000 per aircraft.

This innovation will cost airlines around 505 million dollars over the next few decades. It is stated that the cockpit door cannot permanently be closed due to the need for a restroom, especially on long flights, so an additional safety barrier is needed.