The United States Government Manual is the official handbook of the federal government, published annually by the Office of the Federal Register and printed and distributed by the United States Government Publishing Office. The first edition was issued in 1935; before the 1973/74 edition it was known as the United States Government Organization Manual.
The Manual provides comprehensive information on the agencies of the legislative, judicial, and executive branches. It also includes information on quasi-official agencies; international organizations in which the United States participates; and boards, commissions, and committees. Appendices include a list of agency acronyms and a cumulative list of agencies terminated, transferred, or changed in name since 1933.