The TSA has lifted the ban on knives of a certain size. Allowed in carry-on are knives if the blade is no longer than 2.36 inches or 6 centimeters in length, the blade width is no more than ½ inch at its widest point, doesn't have a locking or fixed blade and doesn't have a molded grip.
A knife is prohibited if the blade is longer than 2.36 inches or 6 centimeters in length, the blade width is more than ½ inch at its widest point, has a fixed blade or locks firmly when in use and has a molded grip.
Small bats are now allowed on the aircraft but only if they're a certain size. Bats that are more than 24 inches and more than 24 ounces cannot be put in carry-on, but anything less than than can brought on board.
The TSA will allow carry-on sports equipment such as billiard cues, ski poles, hockey sticks, lacrosse sticks and no more than two golf clubs.
Razor blades and box cutters are still not allowed.
The Transportation Security Administration announced Tuesday changes to what can and cannot be brought on board an aircraft. Amid a flurry of criticism, U.S. airline passengers will soon be allowed to carry small knives in their carry-on bags, but there are other changes tp the prohibited item list.