TSA: Small Knives to Be Allowed on Flights

Knives with blades no more than 2.36 inches long and no more than half an inch wide will soon be allowed in carry-on bags

The Transportation Security Administration has announced a revision to its carry-on rules effective April 1, 2017. Travelers will be permitted to bring small folding or fixed-blade knives in their carry-on luggage, provided the blade length does not exceed 2.36 inches measured from tip to the start of the handle, and the blade width remains under half an inch. This marks a significant change from the longstanding prohibition on most knife blades in the cabin.

What’s Allowed and What’s Not

• Permitted knives: Small pocket knives or multi-tools with blades ≤ 2.36 inches long and ≤ 0.5 inch wide.
• Still prohibited: Daggers, dirks, swords, machetes, and any blade that exceeds the size limits or locks open on its own.
• Other newly permitted items: Toy bats, hockey sticks, and golf clubs may be carried on board, though airlines may limit items that won’t fit in overhead bins or under seats.

Reason for the Change

The TSA cites improved screening technology and a detailed risk assessment that indicates small blades pose limited threat compared to larger knives. Enhanced X-ray and millimeter-wave scanners can now detect more precise dimensions, allowing screeners to distinguish allowable knives from banned items.

Airline and Crew Concerns

The Flight Attendants Union Coalition, representing 90,000 cabin crew members, has voiced strong objections. They warn that even a small blade could be used as a weapon in a confined cabin environment. Airlines are working with the TSA to update training and safety procedures to handle any incidents involving permitted blades.

Tips for Travelers

• Check dimensions carefully: Use a ruler to verify blade length and width before packing.
• Pack securely: Store knives in a hard case or sheath inside your carry-on to prevent accidental exposure during screening.
• Declare unfamiliar tools: If you carry a multi-tool with blades near the size limit, inform the TSA officer to avoid confusion.
• Review airline policies: Individual carriers may impose size or quantity limits for sporting or utility items in cabins or overhead bins.
• Consider checked baggage: If in doubt, place any knife or sporting equipment in checked luggage to guarantee compliance.

How to Prepare for Screening

When approaching the security checkpoint, remove any knives from pockets and place them in a bin along with electronic devices and liquids. Keep knives in a clearly marked pouch or case. TSA officers will X-ray your bag and confirm dimensions before returning the item for carry-on.

What Happens If You Exceed the Limits

Knives that exceed 2.36 inches in length or 0.5 inch in width remain prohibited in carry-ons. Attempting to carry oversized blades will result in confiscation and potential fines. To avoid delays, measure blades ahead of travel or opt to check them.

For full details on permitted and prohibited items, visit the TSA website or consult the latest TSA Traveler’s Guide. With these new allowances and proper preparation, travelers can confidently carry small knives and select sports gear on board without risking confiscation at the checkpoint.