I am visiting the United States ?

Question

Not sure what the regulations are as regards putting a lock on my suitcase.

Answer 1

The lock must be a special TSA approved lock (which TSA agents have a master key so they can remove your lock and check inside). If you have any other lock on the back it will be broken off.

Answer 2

The first answer is correct and there are "TSA approved" locks.  However, airport security has a nasty habit of cutting the locks on suitcases even if the locks are the "approved" type.

You are better off securing your suitcase with a plastic cable-tie, the twist-tie from a bread bag, or even some string.

Answer 3

It is better just to not put one on. I think if you get an approved lock you can but; it causes a hassle because security has to open your suitcase and check to make sure nothing prohibited is in it. In regards to carry-ons, I don't believe it is allowed. Hope this helps!