In the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, a slip law is an individual Act of Congress

Act of Congress

An Act of Congress is a statute enacted by government with a legislature named "Congress," such as the United States Congress or the Congress of the Philippines....

, which are either public law

Public law

Public law is a theory of law governing the relationship between individuals and the state. Under this theory, constitutional law, administrative law and criminal law are sub-divisions of public law...

s (Pub.L.) or private law

Private law

Private law is that part of a civil law legal system which is part of the jus commune that involves relationships between individuals, such as the law of contracts or torts, as it is called in the common law, and the law of obligations as it is called in civilian legal systems...

s (Pvt.L.). They are part of a three-part model for publication

Publication

To publish is to make content available to the public. While specific use of the term may vary among countries, it is usually applied to text, images, or other audio-visual content on any medium, including paper or electronic publishing forms such as websites, e-books, Compact Discs and MP3s...

 of Federal statutes consisting of slip laws, session laws, and codification. Session laws are compiled into the Statutes at Large

United States Statutes at Large

The United States Statutes at Large, commonly referred to as the Statutes at Large and abbreviated Stat., are the official source for the laws and concurrent resolutions passed by the United States Congress...

 (Stat.), and codification results in the United States Code

United States Code

The Code of Laws of the United States of America is a compilation and codification of the general and permanent federal laws of the United States...

 (U.S.C.).

Public and private laws are prepared and published by the Office of the Federal Register

Office of the Federal Register

The Office of the Federal Register is an agency of the United States government within the National Archives and Records Administration.The Office publishes the Federal Register, Code of Federal Regulations, and United States Statutes at Large, among others. It also administers the Electoral College....

 (OFR) of the National Archives and Records Administration

National Archives and Records Administration

The National Archives and Records Administration is an independent agency of the United States government charged with preserving and documenting government and historical records and with increasing public access to those documents, which comprise the National Archives...

 (NARA). At the end of a Congressional session, slip laws are compiled into the Statutes at Large

United States Statutes at Large

The United States Statutes at Large, commonly referred to as the Statutes at Large and abbreviated Stat., are the official source for the laws and concurrent resolutions passed by the United States Congress...

, which are called "session laws", published by the Government Printing Office

United States Government Printing Office

The United States Government Printing Office is an agency of the legislative branch of the United States federal government. The office prints documents produced by and for the federal government, including the Supreme Court, the Congress, the Executive Office of the President, executive...

 (GPO). Today, most of the public laws, but not private laws, are drafted as amendments to the United States Code

United States Code

The Code of Laws of the United States of America is a compilation and codification of the general and permanent federal laws of the United States...

.