Initialization is different for each of the various types of rollovers.
These are the most common types of rollovers. Recently, I had the pleasure of interviewing David Koegel, a 1990 graduate of Touro College. David attended Shaarei Torah High School in Rockland County, New York, then under the tutelage of Rabbi Berel Wein. Upon completion, David then went on to study in Israel as a pioneer at a new yeshiva, Yeshiva Bais Yisroel. After studying in Israel for a year, he went to Chafetz Chaim, in Forest Hills, New York, for two years.