Place liquids in a one-quart clear plastic bag and set the bag separately on the X-ray conveyor when passing through airport security. All of the bottles inside the carry-on bag should be 3 ounces or less.
Carry a valid, government-issued photo ID with you when traveling. You will be required to show your ID and verify that your name matches the name on the airline ticket when you go through security. When traveling internationally, carry your passport when required.
Sharp, dangerous and flammable items are prohibited in carry-on baggage. Many weapons, liquids and knives, however, are allowed in checked baggage. Explosives are never allowed to travel on an aircraft with you. Check the TSA's list of prohibited items for specifics on whether you can take an item in your checked baggage.
Carry your laptop, cell phone, DVD player, camcorder or other electronic device on board with you, for safe keeping. Electronics must be removed from your carry-on bags and placed separately on the X-ray machine when passing through security. On board, flight attendants will let you know which items can be used in flight and those that must remain off when in the air.
Security officers in airports around the world conduct random security screenings of individual passengers. Sometimes short interviews are required of all passengers before boarding an aircraft. Be patient and do not make inappropriate jokes if this happens. Men and women can choose to be screened in private and are allowed to wear their usual religious or cultural clothing, as long as they submit to the security screenings.
The International Civil Aviation Organization imposes safety and security regulations worldwide to promote safe international travel. In the United States, the Transportation Security Administration is the agency developed by the Department of Homeland Security to enforce air travel security.