Express Mail (USPS)
This is the fastest service available. Express Mail is the only overnight service delivered 365 days a year, including weekends and holidays. Important letters, documents and merchandise may be sent Express Mail.
Priority Mail (USPS)
When the speed of Express Mail is not needed, but preferential handling is desired, use Priority Mail. Priority Mail offers faster delivery at the least expensive rate in the industry. You also have the option of sending mail weighing less than 11 ounces as Priority Mail. The maximum weight for Priority Mail is 70 pounds, and the maximum size is 108 inches in length and girth combined. Priority Mail should be well identified.
Priority Mail can be insured, registered, certified, or sent COD for an additional charge.