Also under the new policy, billiard cues, ski poles, and lacrosse and hockey sticks will be allowed in aeroplane cabins in carry-on luggage.

BBC: TSA to allow some small knives in carry-on luggage

The TSA also will allow travelers to bring billiard cues, ski poles, hockey and lacrosse sticks and a maximum of two golf clubs into aircraft cabins as carry-on baggage.

CNN: March 7, 2013 -- Updated 0312 GMT (1112 HKT)

But passengers will be allowed to include in their carry-on luggage novelty-size baseball bats less than 24 inches long, toy plastic bats, billiard cues, ski poles, hockey sticks, lacrosse sticks and two golf clubs.

WSJ: NY Senator opposes plan to allow knives on planes

Besides knives, the policy will also allow passengers to include in their carry-on luggage novelty-size baseball bats less than 24 inches (610 millimeters) long, toy plastic bats, billiard cues, ski poles, hockey sticks, lacrosse sticks and two golf clubs.

NPR: TSA Stands By Plan To Allow Small Knives On Planes

Passengers also will be allowed to bring onboard as part of their carry-on luggage novelty-sized baseball bats less than 24 inches long, toy plastic bats, billiard cues, ski poles, hockey sticks, lacrosse sticks and two golf clubs, the agency said.

NPR: TSA To Allow Small Knives, Bats, Clubs On Planes