HP -22S Owner's Manual page 154

West Germany. The HP-22S complies with VFG 1046/84, VDE
0871B, and similar non-interference standards. If you use equipment
that is not authorized by Hewlett-Packard, that system configuration
has to comply with the requirements of Paragraph 2 of the German
Federal Gazette, Order (VFG) 1046/84, dated December 14, 1984.
154 A: Assistance, Batteries, Memory, and Service