Among Israel's first international efforts as a state was establishing an "Israel Office of Information" (IOI) in the United States in the fall of 1948. The IOI registered as a foreign agent with the US Department of Justice which required it not only to file activity reports about its efforts on behalf of Israel every six months, but also place a stamp on pamphlets and other materials circulating in the US that their true origin was the Israeli government.
The IOI quickly ran into trouble. It was cited by the FARA section for failing to disclose the existence of a California office. The FBI noticed it wasn't affixing disclosure stamps to the material it circulated. Isaiah Kenen, registered as a foreign agent of the Israeli Ministry of Foreign Affairs, soon tired of such regulatory oversight and disclosures. He coordinated his IOI departure with the Israeli government from the IOI to lobby from a domestically chartered lobbying organization, the American Zionist Council (AZC). The DOJ ordered him to reregister, but he never did.