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Legislative history research at the federal level involves compiling documents leading up to a specific U.S. public law's enactment.  Researchers, attorneys, agencies, and courts might use legislative history to determine the congressional intent of a particular section of a statute, especially if the plain language of the statute is ambiguous.  

Compiled legislative histories save researchers time because documents have already been gathered.  If a compiled legislative history is not available, researchers use various sources to pull together a complete legislative history.

Sources of Compiled Legislative Histories

Major Types of Legislative History Documents

  Characteristics Examples
Selected Availability
Bill versions
  • Provide text of proposed legislation
  • May exist across several congresses, if the legislation does not pass the first time it is introduced
  • Government Printing Office: About Congressional Bills

H.R. 4954, 109th Cong., (as introduced by House, Mar. 14, 2006).

S. 2459, 109th Cong., (as introduced by Senate, Mar. 27, 2006)

GPO - FdSys (1993-)

GPO - Thomas (1989-)

ProQuest Congressional (1989-)

Westlaw (1995-) (CONG-BILLTXT-ALL)

Reports
  • Published with text of legislation when its reported out of committee
  • May contain: amendment text, purpose and summary, background, hearing information, budget information, minority reports, other analysis, etc.
  • Separately numbered from bills
  • Conference reports are issued if Senate and House work out differences late in the legislative process. (Relatively uncommon, e.g. in 2009 there were 11.)
  • Government Printing Office: About Congressional Reports

H.R. Rep. No. 109-447 (2006)

H.R. Rep. No. 109-711 (2006) (Conf. Rep.)

GPO - FdSys (1995-)

GPO - Thomas (1995-)

ProQuest Congressional (1817-)

Lexis (1990-) (LEGIS;CMTRPT)

Westlaw (1948-, enacted bills, USCCAN) (1990-, all reports, part of LH)

Hearings
  • Committees hear testimony in meetings (usu. open to public) from interested parties e.g. businesspeople, advocates, agency experts
  • Official publication of hearing testimony can be delayed
  • Unofficial transcripts are frequently available
  • Prepared statements may be published in official versions
  • Government Printing Office: About Congressional Hearings
The Safe Port Act: Hearing on H.R. 4954 Before the Subcomm. on Economic Security, Infrastructure Protection, and Cybersecurity of the H. Comm. on Homeland Security, 109th Cong. (2006).

GPO - FdSys (1995-, select Senate 1985-1988)

ProQuest Congressional (1824-)

Congressional debates
  • Published in Congressional Record 
  • Happen on the floor
  • Official Congressional Record can be amended to include prepared statements, reports, newspaper articles, etc. See Government Printing Office: About Congressional Record

152 Cong. Rec. H2,107 (daily ed. May 4, 2006).

HeinOnline (permanent ed. 1789-2006, daily ed. 1988-)

ProQuest Congressional (permanent ed. 1789-1997, daily ed. 1985-)

Committee prints and documents
  • Committees can issue reports on legislation or policy issues that are entirely separate from reported bills
  • Committee prints do not have a consistent numbering system, printing process, or format.  See Government Printing Office: About Congressional Committee Prints

Staff of H. Comm. on Homeland Security, 109th Congress, An Examination of Federal 9/11 Assistance to New York: Lessons Learned in Preventing Waste, Fraud, Abuse, and Lax Management (Comm. Print 2006).

 

GPO - FdSys (1995-)

ProQuest Congressional (1830-)

Lexis (1994-2003) (LEGIS;CMTPRN)

Presidential Signing Statements Presidential Statement on Signing the SAFE Port Act, 42 Weekly Comp. Pres. Doc. 1817 (Oct. 13, 2006).

GPO - FdSys (1992-)

HeinOnline (Weekly 1789-2009, Daily 2009-)

Lexis (1979-) (LEGIS;PRESDC)

Westlaw (1986-) (USCCAN-MSG)

Other Useful Documents

If you are doing an in-depth legislative history, it can be helpful to consult relevant secondary sources for background information.  For example, issues related to the SAFE Port Act were addressed in:

State

Each state has their own process and availability of documents.  For links to legislative information for all fifty states, visit the Mauer School of Law Library's State Legislative History Research Guides on the Web.

California

Several libraries have research guides for California Legislative History:

Last Modified: Jun 27, 2011

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