always included if the flight does not overfly or fly near vast masses of water although is required by the FAA on any aircraft equipped with life vests) restrictions enforced by law and/or airline policies, which typically include requirements that passengers must comply with lighted signs, posted placards, and crew members instructions (generally only included in safety demonstrations on Australian, New Zealand, and American carriers as the CASA (AU), CAA (NZ) and FAA (US) require it to be stated) that smoking is not allowed on board, including in the lavatories (though most airlines now refer to them as restrooms); on all domestic flights in the United States and international flights going to or from that country, a warning that prohibits the use of e-cigarettes is also announced on flights where smoking was permitted, a reminder was often issued that smoking was only acceptable in smoking sections, but not when the no-smoking sign was illuminated nor anywhere else on board; another reminder warned that in case of deployment of the oxygen masks, any lit cigarettes must be extinguished; airlines which prohibited smoking on all their flights usually reminded passengers of such carrier-wide restriction; smoking was banned on all domestic and international flights in 2000 that United States federal law prohibits tampering with, disabling or destroying lavatory smoke detectors that the use of mobile phones is not allowed during flight, unless placed in "airplane mode" or the wireless capability is turned off, unless the aircraft has cellular connection and/or Wi-Fi that laptops and other electronics may only be used once the aircraft is at cruising altitude and the captain turns off the fasten seat-belt signs some airlines may require passengers to also turn off all devices during taxi, take-off, and landing (such as Kenya Airways, Air Transat, and Malaysia Airlines) in addition to having these devices set to airplane mode if present, most airlines may also require passengers to unplug these devices from charging ports during these times some newer aircraft have separate “please turn off electronic devices” signs in place of the now unnecessary “no smoking” signs (as smoking is never allowed anyway) and that electronics should be completely shut off and put away when these signs are illuminated If the passenger loses an electronic device under a seat, the passenger should not attempt to move the seat as this may damage the device or injure the passenger; the passenger should