As long as your infant has a plane ticket, their luggage is aloud. However, for certain items you may have to consalt the plane board, or someone at the airport.
Your best bet is to go to the TSA web site and see the list. See the link below.
Yes. I did when I went to Toronto,Canada. Just put it in your purse,or some type of bag you want to bring aboard the plane. They usually dont check your items you bring on the plane anymore
Yes, allowed.
No
No
Yes, they are on any plane.
As of 6/9/2010, you are not allowed to bring any liquid items on a commuter airplane over 3.4 ounces.
Yes
No.
No.
Yes, unless the airline says something about it, you are allowed to take an mp3 player on a plane.