U.S. Government Manual

As the official handbook of the Federal Government, the United States Government 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. The Manual begins with reprints of the Declaration of Independence and the U.S. Constitution.
A typical agency description includes:

• A list of officials heading major operating units.
• A summary statement of the agency's purpose and role in the Federal Government.
• A brief history of the agency, including its legislative or executive authority.
• A description of its programs and activities.
• Information, addresses, and phone numbers to help users locate detailed information on consumer activities, contracts and grants, employment, publications, and other matters of public interest.

The Manual is published as a special edition of the Federal Register (see 1 CFR 9.1). It focuses  on programs and activities. Persons interested in detailed organizational structure, the regulatory documents of an agency, or Presidential documents should refer to the Federal Register or one of its other special editions.
GPO Access contains the U.S. Government Manual for 1995-96 and all subsequent editions up through the present. The new edition of the Manual is available to the Public each year in the late summer. Documents are available as ASCII text and Adobe Portable Document Format (PDF) files.
The Wirtz Labor Library has the US Government Manual from 1935- current. It is shelved in the General Reference area in the main library under call no JK421.A5.