The links below retrieve documents from the U.S. Government Printing Office via the GPO Access web site (http://www.access.gpo.gov).
PDF documents downloaded from this site will be named "get-crf", and will not have the standard .PDF file ending. You will need to either tell your browser to use Adobe Acrobat to read the file, or save it to your hard disk and rename it, including adding the file extension "PDF", in order to view it.
Code of Federal Regulations
Title 5 - Administrative Personnel
Chapter I - Office of Personnel Management
Part 891 - Retired federal employees health benefits