What exactly does 'processed through ISC New York' mean on USPS

Answer (1 of 51): Easiest answer: The phrasing is completely misleading. At worst, it can merely mean that the plane has landed at the airport where the ISC (International Service Center) is located. It does NOT mean that it’s gone through Customs. All packages from Singapore and India automatica

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What Does Processed Through ISC New York Mean on USPS Tracking?

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What exactly does 'processed through ISC New York' mean on USPS tracking? - Quora

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