The “Third Proclamation on Compulsory Identification Cards” [3. Bekanntmachung über den Kennkartenzwang] was issued on July 23, 1938. According to this new regulation, Jews were obliged to apply for an identification card before the end of the year. Starting on January 1, 1939, they were to present this card, without being asked, whenever they visited government offices or had dealings with authorities. In August 1938, the Reich Ministry of the Interior issued a list of officially approved "Jewish" forenames. According to the “Second Decree on the Execution of the Law regarding the Changing of Surnames and Forenames” [Zweite Verordnung zur Durchführung des Gesetzes über die Änderung von Familiennamen und Vornamen] of August 17, 1938, Jews whose names failed to appear on the government-approved list had to adopt either "Israel" or "Sara" as additional forenames. This decree also took effect on January 1, 1939. Below is a reproduction of the inside pages of a compulsory identification card for Dr. Anton Katzenberger.