Questions on Beaverton’s air gun ban

Just noticed that the Beaverton air gun went into effect today.

“BEAVERTON — A ban on carrying airsoft guns in public went into full effect in Beaverton Tuesday. Officers spent the past month issuing warnings but said starting May 1, it was possible to be fined for carrying the guns. Police said the guns are too realistic looking and it may be hard for an officer to make a split-second decision in such a case. ” KGW 5/2/07

The question arises does this apply to all air-guns or just air-guns that “look like” or “look mostly like” or “sorta look like” real guns? (This of course doesn’t change the fact that pulling anything on a cop is green light for self-inflicted trouble.) The details of this ban are elusive.