According to FAA and international aviation safety regulations, there are four critical items that every passenger must be briefed on before an aircraft can take off. First is the use and location of Seat Belts, including how to fasten, tighten, and unfasten them. Second is the location and operation of Emergency Exits, with the explicit instruction that the nearest exit may be behind you. Third is the location and use of Oxygen Masks, emphasizing that you must secure your own mask before assisting others. Fourth is the location and use of Life Vest/Flotation Devices, including how to retrieve and inflate them (and the warning not to inflate them inside the cabin). In 2026, while many airlines have moved toward creative or humorous video briefings, these four core requirements remain the legal baseline for safety. Additionally, passengers are briefed on the "no smoking" policy (including e-cigarettes) and the requirement to keep tray tables and seatbacks in the upright and locked position for taxi, takeoff, and landing.