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Research Guides

Federal Statutory Law

Guidance on how to research up-to-date federal statutes

Interpreting Citations

Public Law Numbers:

A new law is first published as a slip law and is given a public law number. Public laws are numbered sequentially starting with each new Congress and cited in the following way: Pub. L. No. 101-123 where:

  • Pub. L. No. = The Bluebook abbreviation for "public law number"
  • 101 = First year of the Congress
  • 123 = Sequential number assigned to the law

United States Statutes at Large:

Slip laws are then compiled into bound volumes known as session laws. "Session laws" refer to the publication in chronological sequence of laws enacted during a legislative session. This is the function of the United States Statutes at Large. An example of a citation to the United States Statutes at Large is: 80 Stat. 931 where:

  • 80 = Volume number of the United States Statutes at Large
  • Stat. = The Bluebook abbreviation for United States Statutes at Large
  • 931 = Page on which the text of the law begins

United States Code:

In the United States Code (U.S.C.), the laws are grouped into titles, with each title representing a particular subject area, instead of chronologically. In the codified version of a law, section numbers of the session law version are renumbered from their original public law numbers. Thus, the section numbers of the session law will be different from the section numbers of the codified version. An example of a citation to the United States Code is: 5 U.S.C. § 555 where:

  • 5 = Title of the United States Code (Title 5, Government Organization and Employees)
  • U.S.C. = The Bluebook abbreviation for the United States Code
  • 555 = Section number

Reference Sources [Aids for finding the Law]