United States presidents issue executive orders to help officers and agencies of the executive branch manage the operations within the federal government itself. Presidential memoranda are closely related, and like executive orders have the force of law on the Executive Branch, but are generally considered less prestigious. Presidential memoranda do not have an established process for issuance or publication; unlike executive orders, they are not numbered. A Presidential determination is a determination resulting in an official policy or position of the executive branch of the United States government. Presidential determinations may involve any number of actions, including setting or changing policy, or any number of other exercises of executive power.A Presidential proclamation is a statement issued by a president on a matter of public policy. They are generally defined as, "the act of causing some state matters to be published or made generally known. A written or printed document in which are contained such matters, issued by proper authority; as the president's proclamation, the governor's, the mayor's proclamation." An Administrative Order (I.E.: findings, letters, orders) can be issued. Administrative orders are published in the Federal Register in forms other than those of executive orders, or proclamations, have been denominated as administrative orders when reproduced in CFR Title 3 compilations." A research guide by the National Archives defined administrative orders as "unnumbered signed documents through which the President of the United States conducts the administrative operations of the Federal Government" which "include but are not limited to memoranda, notices, determinations, letters, and messages."A Presidential notice or a Presidential sequestration order can also be issued. The newest executive power, National security presidential memoranda,2 operate like executive orders but are only in the area of national security. They date back to President Harry S. Truman and have been called many different names.Executive orders, Presidential memoranda, Presidential determinations, Presidential proclamations, Administrative orders, Presidential notices, Presidential sequestration orders, and National security presidential memoranda are compiled by the Office of the Federal Register (within the National Archives and Records Administration) and are printed by the Government Printing Office. They are published daily, except on federal holidays. A free source of these documents is the Federal Register, which contains government agency rules, proposed rules, and public notices. There are no copyright restrictions on the Federal Register; as a work of the U.S. government, it is in the public domain.