[Code of Federal Regulations] [Title 20, Volume 2] [Revised as of April 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 20CFR423.7] [Page 1100] TITLE 20--EMPLOYEES' BENEFITS CHAPTER III--SOCIAL SECURITY ADMINISTRATION PART 423_SERVICE OF PROCESS--Table of Contents Sec. 423.7 Acknowledgment of mailed process. The Social Security Administration will not provide a receipt or other acknowledgment of process received, except for a return receipt associated with certified mail and, where required, the acknowledgment described in rule 4(e) of the Federal Rules of Civil Procedure (28 U.S.C. App. 4(e)).