MATAWAN - (AP) - Conductors are finding a big question inNew Jersey Transit's expanded quiet car program: How quiet is quietenough?

The New York Times reports disputes have been breaking out indesignated quiet cars over the past week.

Some passengers are trying to impose silence by hushing otherriders. Others say they have the right to talk quietly, or at leastwhisper.

The transit agency expanded its quiet car program last week.Now, the first and last car in every train stopping at Newark andNew York's Penn Station is designated quiet.

Conductors are handing out business cards to loud ridersreminding them to hush.

The rules call for cell phones, computers and other electronicdevices to be silenced.