1955–1964. Records are arranged by the city, year, and then by subject accord to an alpha–numeric classification filing scheme issued in December 1955, by USIA for its overseas posts. The records are generally found in three–year blocks.
1965–1980. Arranged by city, year, and then accord to a subject–numeric filing scheme patterned after that used by the Department of State. The Department of State–USIA Records Classification Handbook was issued jointly in 1965. In 1967, USIA expanded the “Administration” and the “Culture & Information” sections of the handbook to better meet its needs, and issued them under “Excerpts from Records Classification Handbook.” The majority of USIS offices used only these two subject categories. The USIS offices that required broader subject coverage used the other five categories from the 1965 Department of State–USIA Records Classification Handbook.