FedEx gets the credit for inventing guarantees of delivery. Who can forget, “When it absolutely, positively has to be there overnight?”
All packages that were shipped by FedEx, UPS, and DHL were guaranteed to be on time or your money back, including packages shipped ground.
Until now.
DHL eliminated service guarantees as of November 17, 2008 on packages shipped within the US.
UPS does not guarantee ground shipments that are “picked up or scheduled to be delivered during the period December 1 through December 31.” So that could mean anything after next Monday, November 24 is not guaranteed.
FedEx guarantees do not apply if the “package was tendered for transportation during the 14 calendar days before Christmas”. According to my calculations, that means anything shipped after December 10 is no longer guaranteed to be on time.
The US Post Office guarantees delivery of Express Mail to most destinations 365 days a year – even Sundays and holidays.
The guarantee is based on the origin and destination zip codes and the time that the package is dropped off. You can go the USPS Commitment Calculator to find out about your specific situation.
Most people don’t even ask for their money back or even check if their item was delivered when promised. Delivery guarantees will be back soon and you will find out more in future blogs.
Posted by mtaylortec 
Shipping Coach 