Does the USPS provide information on early retirement or do I have to get my information from the OPM site?

The USPS has a link for information about early retirement

"...Questions and Answers on Benefits, Pay and Leave Under Voluntary Early Retirement Authority (06/28/04)... Summary of Benefits and Leave Provisions Under Voluntary Early Retirement Authority (06/28/04) ..."    

Source: www.usps.com

.