It depends on the knife.

Penal law section 186, subsection B.
a folding knife, with no locking mechanism (or other ways of turning it into a fixed blade) and with a blade no longer then 10 cm is classified as an “Olar” (pocket knife) and is legal to carry provided you have a reasonable reason for carrying it.

You are forbidden from carrying any knife in to sites with security, educational places, shopping malls, and government offices. Should you be caught with the knife it will be confiscated by the security or police. If it is a long bladed knife there might be possible holding time.

CHAI TIP – Leave such items at home.

Posted in: Luggage & Packing