Postal rate change FAQs What is a rate update? How do I download or install my rate update? How can I determine if I have already downloaded the rate change update? I am covered by a rate change protection contract. What do I do if I did not receive my rate update? My mailing system is covered by rate change protection. How do I download the new rates? I need to send a Purchase Order for my rate update. What do I do? How is the rate table software in my mailing equipment updated? What is Rate Change Protection? What is the best source of information about the USPS price changes?