 In June 1956, the name of the Vaad Hakashruth was changed to the Council of Orthodox Rabbis, the source of the abbreviation COR.In the early 1960s, COR successfully appealed to Prime Minister John G. Diefenbaker to have Shechita legally approved by the federal government and protected by Canadian law.For many years, Rabbi Gedalia Felder was the chairman of the Vaad Hakashruth, and in 2006, his son Rabbi Yacov Felder became the vice chairman, and eventually the chairman.