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  • MJO Services
    MJO Services
    410-840-9104
    1101 Business Pkwy. S., 21157  Westminster

    What is the Intelligent Mail Barcode? This barcode, formerly referred to as the 4-State Customer barcode, is a new Postal Service device used to sort and track letters and flats. The USPS is promoting the use of the Intelligent Mail Barcode because it expands the ability to track individual mail pi…