How do I know if my lock is TSA-approved?
TSA-approved locks feature a red diamond on the exterior indicating they are TSA (Transportation Security Administration) accepted.
TSA in the US may open checked luggage as part of their security screening process. If your luggage is locked with a non-TSA-approved lock, the lock or your luggage may be broken open.
If your luggage is locked with a TSA-approved lock, TSA staff will open the lock using their keys and re-lock your luggage. Only TSA staff have access to keys to TSA-approved locks.