cost to mail envelopes usps
The U.S. Postal Service announced a decrease in postal rates that were approved by the Postal Regulatory Commission. The new rates began Sunday, April 10, 2016, at 12:01 AM. The cost to send a 1-ounce USPS Certified MailÂ® letter with Return Receipt (Green Card) will be $6.47. If you use Electronic Delivery Confirmation, the cost can be reduced to $4.52. Additional options such as Return Receipt Signature Electronic in PDF format cost $1.35. The First Class 1 oz.