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June 19, 2006 1:00 AM, EDT

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ne thing PrePass and Norpass deliver in equal measure to qualified truck operators is an easy way to avoid a time- and fuel-wasting delay at weight stations.

Otherwise, the two multistate bypass systems are interoperable only in the sense that participating Norpass truckers may use the same transponder when signing up for a PrePass account.

PrePass, however, prohibits non-member states from accessing the data of clients, which precludes PrePass transponders from being used in the Norpass service.

This article appeared in the June/July edition of TT's iTECH supplement. For the full story, see the June 19 print edition of Transport Topics. Subscribe today.