United States law

This section states that "Simple ownership and possession of a crossbow is legal in all states", but the link the reference points to ([6] - http://www.crossbowhuntingpro.com/regulations_by_state.html) says that "Crossbows are illegal. Except for Modified Crossbow Permit." for New York State. This is contradictory - unless i'm misunderstanding the definition of "simple ownership and possession"