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? 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?