The USPS will be implementing a rate change effective April 17, 2011 for First-Class Mail, Standard Mail, Package Services, Media Mail and Extra Services. Priority Mail and Express mail will remain unchanged.
The price to mail a one-ounce letter or flat within the U.S. will remain at $.44; however, the additional ounce rate will increase by 3 cents from $.17 to $.20. Other changes include: