USPS® sites shipping authorized equipment, parts, or electronics through the mailstream to the Asset Recovery Center in Topeka, Kansas, should not use any extra services such as Certified Mail®, Signature Confirmation™, Registered Mail™, or Delivery Confirmation™. The additional work hours required to process mail with these premium services is not a cost effective use of resources for items that have reached their end of life.
For a list of authorized excess equipment to be returned to the Asset Recovery Center and complete shipping instructions, visit the Investment Recovery website at http://blue.usps.gov/purchase/operations/ops_ir_arc.htm.
— Operating Asset Fulfillment,
Supply Management, 4-19-12