The U.S. Transportation Security Administration (TSA) said Wednesday it will impose new stricter security rules requiring airline travelers to remove all electronic items larger than mobile phones, including tablets, e-readers and video game consoles, from carry-on baggage for screening.

Prior rules required only laptops to be removed for separate screening. The new rules significantly expand the number of electronic devices that will need to be removed for screening and help government employees get a clearer view during X-ray screening.

TSA said the new rules have been in place in a pilot project at 10 U.S. airports, including Detroit, Los Angeles, Boston and Phoenix, and will expand to all U.S. airports in the months ahead.