Simple rules, low fees, and no claims to file, it's that simple! In Guaranteed Standard, we guarantee to deliver your shipment within the standard transit times, If we fail to make the service, we don't bill you and there are no claims to file. In Guaranteed Hour service, we guarantee to deliver your shipment within a minimum one-hour window of your choosing. If we fail to make the service, we don't bill you and there are no claims to file. Our Guaranteed Service offerings are really that simple!