Federal Legislative History



I. Introduction

The "legislative history" of a particular law consists of all the documents created by the legislature during the process of the law’s passage. This material often becomes valuable later, when disputes arise from vague or ambiguous statutory language. Although some courts disapprove of using such "extrinsic evidence" to clarify the meaning of a law, the sheer volume of legislation in recent years has resulted in an increasing reliance on legislative history, particularly in the federal court system.

Today there is an abundance of legislative history material published for most federal statutes. All legislative history materials have only persuasive legal authority, although courts consider certain types of documents to be more persuasive than others. Normally, the reports of the congressional committees that considered the proposed legislation and recommended its enactment are considered the best source for determining the intent behind a law. Other documents generated prior to enactment include statements made on the floor of Congress in legislative debate, statements or testimony at committee hearings, and earlier or alternative versions of the bill. Statements made and reports written after enactment are usually found to be less persuasive, and are not considered part of the "legislative history".

This guide should serve as an introduction to the basic documents and procedures for researching the legislative history of a federal law.



II. Getting Started

All federal legislation of a "general and permanent nature" which is currently in force is codified in the official U.S. Code (U.S.C.), which is published every six years with annual supplements. The U.S.C. is available in the Law Library's Stevens Federal Alcove (Level 3), as well as online through the U.S. Government Printing Office's FDsys site, and the Office of the Law Revision Counsel. Unofficial, annotated versions of the Code text are also available in the Federal Alcove, and online to the Law School community via the research databases LexisNexis and Westlaw, and to the University community via LexisNexis Academic.

The language of each Code section is based on the original act that created it and any later laws that amended it. To compile a complete legislative history for a current federal law, it is necessary to locate the documents related to both the creating act and any later amendments. To begin the process, it is helpful to locate as much as possible of the following information for each act:

its Public Law (or chapter) number;
its location in the U.S. Statutes at Large;
the date of enactment;
the number of the House or Senate bill that was enacted.
The Public Law number and Statutes at Large citation are easily found with the text of the codified language in the official U.S. Code or the annotated unofficial versions. Each section of the Code also provides a short parenthetical note explaining how the amendments changed the existing text.

The U.S. Statutes at Large are the official federal session laws, compiling laws enacted during a particular congressional session. Prior to 1957, each act was given a separate chapter number in the Statutes at Large. Later laws are identified and cited by individual Public Law numbers and by their volume and page location in the Statutes at Large, e.g.: "ch. 347, 61 Stat. 516 (1947)" or "Pub. L. No. 96-374, 94 Stat. 1367 (1980)." The Statutes at Large can be found in the library’s Federal Alcove; Documents AE 2.111; and online in FDsys from 1950-present and in HeinOnline’s U.S. Statutes at Large library from 1789-present.

Although it is increasingly easier to find material with only the Public Law number or Statutes at Large location, much information in the official records of Congress is indexed and organized around the bill number. The bill number for a law enacted since 1903 can be found with its text in the appropriate volume of the Statutes at Large. Bill numbers are also published with the full text of the act in the unofficial session laws set U.S. Code, Congressional & Administrative News (USCCAN) (1941- present) (Federal Alcove & online in Westlaw). For very recent acts, bill numbers are included with the slip law (a pamphlet version of the new law, which serves as the official version until the next compilation of Statutes at Large is published). Slip laws are available in the Federal Alcove and full-text via FDsys.

Bill numbers for earlier laws can be most easily found through the tables in Eugene Nabors, Legislative Reference Checklist: The Key to Legislative Histories from 1789-1903 (1982) (Ref. KF49.L43). They can also be found through the indexes and tables of the Congressional Record and its predecessors (see section V, part B, for more information on the Congressional Record).



III. Compiled Legislative Histories

Considerable research time can be saved if a legislative history has already been compiled for the law in question. Compiled legislative histories are of two types: those assembled for selected laws by previous researchers, and those issued on a regular continuing basis by commercial sources.

Available compilations of the first type are listed by Public Law number and by Statutes at Large location in Nancy P. Johnson's Sources of Compiled Legislative Histories: A Bibliography of Government Documents, Periodical Articles, and Books (Ref. KF42.2 2012 & HeinOnline's U.S. Federal Legislative History Library), which includes materials dating back to the 1st Congress. Most sources listed by Johnson provide the actual texts of legislative history documents (with many available in the library's book collection); some are journal articles or other sources that provide only citations to relevant documents. Hein's Federal Legislative History Title Collection includes online versions of many compiled legislative history publications, making it an excellent starting point for legislative history research.

The Law Librarians' Society of Washington, D.C. (LLSDC) indexes Legislative Histories of Selected U.S. Laws on the Internet as part of its Legislative Sourcebook. The site points to compiled legislative histories in Lexis, Westlaw, HeinOnline, the Department of Commerce, and other sources.

Another valuable source for compiled legislative history materials is ProQuest Legislative Insight, available to current members of the Duke University community. It includes nearly 20,000 compiled legislative histories for federal laws (mostly 1929-present, with some coverage back to 1897). Files are provided in PDF.

Current members of the Duke Law community also have access to have access to various compiled legislative history databases:

Westlaw's FED-LH database includes PDFs of legislative histories compiled by the U.S. Government Accountability Office, from 1921-1995. This database provides a comprehensive and searchable collection of documents related to a particular Public Law number, including alternate versions of bills which did not become the final law.
Westlaw's Arnold & Porter Legislative Histories collection includes compiled legislative histories for many major federal statutes. A complete list can be accessed in Westlaw by searching the Directory (in Westlaw Classic) or the main page (in WestlawNext) for arnold and porter. Westlaw also includes PDFs of legislative histories compiled by the U.S. Government Accountability Office, beginning in 1915 (FED-LH database).
LexisNexis offers similar compiled legislative histories for important laws, particularly in the areas of treasury appropriations and environmental protection. A complete list may be accessed in the Lexis.com interface by following the path: Legal > Legislation & Politics, U.S. & U.K. > U.S. Congress > Legislative Histories.
Federal Legislative Histories: An Annotated Bibliography and Index to Officially Published Sources (Ref. KF42.2 .F42) is an annotated bibliography of sources published from 1862 -1990. The information provided includes a history of the law and publications associated with the law. This source includes popular name, author, congressional session, Public Law number, and Bill Number indexes.



IV. Assembling Legislative Histories

If compiled legislative history publications are not available, it is a more complicated process both to determine whether useful documents exist and where they can be located. Fortunately, online resources have greatly simplified the process of locating legislative history documents.

Congress.gov provides free federal legislative information for the 93rd Congress forward (1973-present). This site links users to the text of legislation as well as related bills, amendments, debates, and committee documents. The “Actions” tab for a particular bill is useful for determining what legislative history materials exist for a particular law, and will link to any available reports and debates (generally 1994-present).

Current members of the Duke University community also have access to other legislative history resources. ProQuest Congressional is the online counterpart to Congressional Information Service (CIS). CIS is an index/abstract service and full-text microfiche publisher of congressional documents (print Index/Abstracts in Federal Alcove, Level 3; microfiche in Microforms Room, Level 1). CIS provides detailed and highly specific subject indexing of congressional publications. The CIS index found in ProQuest Congressional is also available in the Law School's version of LexisNexis as the CIS/Historical Index database, or CISHST, currently available only in the Lexis.com interface. For a particular Public Law number, both the electronic and print versions of CIS provide citations to associated bills, reports, hearings and dates of consideration on the floor of each house. References are given to each document's CIS accession number (e.g., S183-4), which provides access to its CIS abstract or to the microfiche text. (Note: The microfiche service does not include the text of the Congressional Record. However, the dates cited can be used to locate debates in both the daily and permanent editions of the Record.) ProQuest Congressional provides direct links to full text where it is available through their interface; note that certain types of materials or certain time periods may need to be accessed via other online sources. The rest of this guide discusses research procedures for several common types of legislative history material.



V. Locating Specific Document Types

A. Committee Reports/Serial Set
Usually the most persuasive sources of legislative history are the written reports that accompany a bill from committee to consideration on the floor of the House or Senate. This is because committee reports are written to explain the proposal, as well as its intended effects, by the legislators who looked at the bill most closely. Normally, there are separate House and Senate reports available for each enacted law, as well as a conference report if the final language was developed by a conference committee of legislators from both chambers.

There are separate numbered series of House and Senate reports for each two-year congressional term. Conference reports are numbered within either the House or Senate series. The documents are commonly referred to by a number including that of Congress, e.g., "H.R. Rep. 97-857" (i.e., the 857th House report issued by the 97th Congress). House reports began this numbering system in 1817; Senate reports in 1847.

Sources for Committee Reports

Committee reports are published individually in paper and, since 1979, in microfiche. The paper copies normally are not preserved in libraries, however, because they are republished by the government (along with several other congressional documents) in the series of bound volumes known as the “Serial Set”. Each serial set volume is numbered in consecutive order, from the first volume issued in 1817 to date. There is a print version of the serial set in the Perkins/Bostock Public Documents department. The Duke University community also has access to the serial set, and to individual committee reports, through a variety of electronic databases, described below.

Resources marked with an asterisk (*) are available only to current members of the Duke Law community.

FDsys: 1995 - present
ProQuest Congressional: 1817 – 1969
ProQuest Legislative Insight: 1897 - present (reports related to enacted laws only)
U.S. Congressional Serial Set Digital Collection: 1817-1994
Bloomberg Law*: 1995 - present
LexisNexis*: 1990 - present (CMTRPT file)
Westlaw*: 1921 - present (FED-LH database: PDFs of reports related to selected public laws 1921-1995; LH database: 1948-1989 for public laws as published in USCCAN; 1990 - present for all reports, including reports on bills that did not become law)
The predecessor to the serial set, the American State Papers, contains selected committee reports from 1789-1838 and may be searched electronically. The American State Papers are also available through the U.S. Congressional Documents Library of HeinOnline, the Archive of Americana database, and in microform at the Law Library.

Locating Report Numbers

Selected reports are published as part of West's U.S. Code, Congressional and Administrative News (USCCAN) (1941 - present) (Federal Alcove & Westlaw); legislative history materials were generally not published in this set before 1947. For most laws, either a Senate or a House report and the conference report (if there is one) are reprinted. In addition to the text of public laws and selected reports, USCCAN, since 1948, has included the numbers of reports it does not publish. This information is also included in volumes of the U.S. Statutes at Large published since 1963, and with the text of each slip law.

For older laws, it is necessary to know the number of the enacted House or Senate bill, and to consult the tables in the Congressional Record (or its predecessors). This information is also available in the Digest of Public General Bills and Resolutions (published 1936-90), shelved in the Documents Collection at LC 14.6 (1978-1990), and also available at Perkins/Bostock (1971-1990).

Locating Serial Set Volumes in Print

After a report number is found, it is necessary to determine in which volume of the serial set the report is located. The CIS U.S. Serial Set Index (Ref.Z1223.Z9.C65; electronic equivalent in ProQuest Congressional) provides detailed subject indexing, and tables converting report number to serial set volume number, for reports published between 1789 and 1969. The set is divided chronologically into twelve parts, each with a separate subject index and tables for the period it covers. The subject index provides references to report number, Congress and session number, and serial set volume number. Consequently, if the Serial Set Index is available, both report and serial set numbers can be located directly, without knowing the bill number or going through the Congressional Record. ProQuest Congressional provides corresponding serial set volume numbers for committee reports up to 1969.



B. Congressional Debates
Statements made in floor debates have been found useful as sources of legislative intent, but they have only limited value as accurate explanations of a bill's meaning. Remarks made by the sponsor of the legislation or the chairperson of the committee that considered it tend to carry more authority than the opinions of members at large.

Congressional Record

Since 1873, congressional debates have been published in the Congressional Record, which appears first on a daily basis, then is recompiled into annual bound volumes at the end of each session of Congress (known as the "permanent," or "bound" edition). There are separate Bluebook citation formats (Rule 13.5) for the daily and permanent editions of the Congressional Record; researchers should cite to the daily edition only if the material has not yet appeared in the permanent volume.

The Congressional Record is available on the Web through Congress.gov since 1995 and via FDsys from 1994 – present (daily) and 1999-present (bound).

HeinOnline's U.S. Congressional Documents library has also digitized the bound Congressional Record (1873 - present); the daily edition is also available here from 1980 - present. Hein has also developed a search tool which converts daily edition citations to bound edition citations (currently available back to 1980).

The Congressional Record is also available online to the Duke Law community through LexisNexis and Westlaw beginning in 1985, and in Bloomberg Law from 1989-present (daily) and 1933-1988 (bound). NOTE that Lexis and Westlaw do not revise the page numbers once the permanent edition is published; although you should cite to the permanent edition, they contain only the citations to the daily edition.

When using a print, microfiche or PDF copy of the Record, the best source for locating the text of debates on the floor of Congress is the "History of Bills and Resolutions" table for each annual volume of the Congressional Record. It is necessary to know the number of the bill that was enacted, but the annual table provides page citations to the voluminous text of each Congressional Record. References to dates of consideration for each bill can be found in the Digest of Public General Bills and Resolutions, USCCAN, CIS and the Statutes at Large, but, because those references are published before the daily edition of the Record has been compiled into the permanent bound edition, they include no page numbers.

Pre-1873 Sources

The publication known today as the Congressional Record has undergone a number of title changes in American history. Earlier versions are available in the Law Library as well as full-text online through the Library of Congress's American Memory Project. and HeinOnline's U.S. Congressional Documents library.

Congressional Globe (1833 - 1873); Documents X 72-180
Register of Debates in Congress (1824 - 1833); Documents X 43-X 71
The Debates and Proceedings in the Congress of the United States (1789-1824);
Documents X 1-42 (labeled on spine as The Annals of Congress)


C. Committee Hearings
Statements made in testimony before the committee considering the proposed legislation or by committee members have been accepted by courts as evidence of legislative intent. Their usefulness is limited by the large amount of testimony, both pro and con, on many bills and the difficulty in establishing a connection between particular remarks made at the hearing and the final language of the bill.

Hearings are not held on all pieces of federal legislation, and not every hearing is published. Unpublished hearings are sent to the National Archives, and remain under seal for 20-50 years, depending upon the chamber which originally held the hearing and the sensitivity of its content. In addition, even hearings which are selected for official publication may be delayed due to the lack of a mandatory printing schedule for congressional committees; the amount of time between the hearing and its official publication can vary widely, from a few weeks to several years.

Indexes to Hearings

CIS (see Section IV) is the best indexing source for hearings. The hearings themselves are included in the CIS microforms set and online in ProQuest Congressional & Legislative Insight.

Additional access to hearings is provided by the following historical print indexes:

CIS U.S. Congressional Hearings Index (Ref KF40.C561981). Published in eight parts, going back to the 23d Congress in 1833, the Index provides subject access, descriptive information on the hearing, and (most importantly for legislative history purposes) an index by bill number, that brings together citations for available hearings on each bill. CIS, Inc. also distributes a microfiche collection of these pre-1969 hearings included in the index; however, this microfiche set is not available at Duke. (Instead, use ProQuest Congressional for electronic access to the Digital Collection of hearings.)
The basic index for hearings (and most other government documents) has historically been the Monthly Catalog of United States Government Publications, which began publication in 1895, and is available in the Law Library at Documents GP 3.8 from 1911-2004 (at which point it moved exclusively to http://catalog.gpo.gov). Along with detailed bibliographic information about each published hearing, the Monthly Catalog includes its Superintendent of Documents (SuDocs) classification number, e.g., Y4.Ed8/1:P92/4, which determines its physical location in most documents libraries. The Monthly Catalog is indexed annually, in various five and ten year cumulations, and in the Cumulative Index to the Monthly Catalog of United States Government Publications 1900-1971 (1973-75) (Documents GP 3.8/10:0 B83).
Hearings of both houses are also indexed in the U.S. Senate Library's Index of Congressional Committee Hearings (Ref KF40.C86). The original volumes cover hearings in the Senate Library published before 1935; later supplements cover up to 1978. Each provides access by subject, committee name and bill number. Their usefulness is somewhat limited because they do not provide Superintendent of Documents classification numbers for the hearings, but indicate the bound volume where they can be found in the Senate Library. However, the indexes do allow the researcher to verify whether or not a hearing has been published for a particular bill. The subject and committee indexes do provide fairly complete title information for each item and simplify locating its SuDocs number in the Monthly Catalog. The bill number index provides only the Senate Library volume number, but there are published shelf lists through 1971 that serve as tables allowing the user to find the titles of hearings within each library volume.
Pre-1935 hearings not held in the Senate Library are indexed in Harold O. Thomen, Supplement to the Index of Congressional Committee Hearings prior to January 3, 1935 (1973) (Ref.KF40.C862).
Electronic Access

The best source for accessing congressional hearings online at Duke University is ProQuest Congressional, which provides PDFs of selected hearings from 1824-present as part of its digital collection. The full text of selected hearings is also available for free through FDsys from 1994 - present. Hearings related to Supreme Court nominations are also available back to 1971 on FDsys, under "Additional Government Publications." Individual congressional committee websites also often make the full text of their hearings available (often with video); however, their archives generally do not predate what is available through FDsys.

HeinOnline’s U.S. Congressional Documents Library includes more than 3,000 hearings from the 71st Congress (1927) through the 103rd Congress (1994), with plans to expand coverage up to the current Congress. Rutgers-Camden Law Library has digitized its congressional documents collection, including hearings. Hearings are added on an ongoing basis and will include material from the library’s collection from the years 1970-1998. The University of New Orleans also maintains a digital collection of hearings from the 1960s-1980s, which may be searched online. The Law Library of Congress, in a test partnership with Google, has also digitized selected historical hearings related to the areas of immigration, freedom of information/privacy law, and the United States Census.

Many federal hearings can be located in print in the Duke University Libraries’ catalog with a search of the hearing title. Most are housed in the libraries’ off-site storage facility, the Library Service Center, but may be requested for delivery.



D. Bills
Frequently, before the final version of a bill is reported to the floor, a committee will consider alternative versions or proposed amendments. Comparing the enacted language with that found in earlier versions of the bill, or in amendments that were not accepted, can better illustrate the intent of the final version. Because of the general unavailability of bills from earlier congresses, however, this process can be difficult. Comprehensive historical collections are available at the Library of Congress and in the offices of each house, but at few locations outside of Washington, D.C.

However, bill texts have become increasingly available online, at least for more recent Congresses. Congress.gov provides the full text of federal proposed and enacted bills back to 1973. LexisNexis offers the full text of bills dating back to the 101st Congress (1989 - present). Westlaw’s coverage begins with the 104th Congress (1994 - present); its FED-LH database also offers PDFs of alternate versions of bills which later became public law (1921-1995). Bloomberg Law includes federal bills back to 1995.

Older bills are available on microform, although complete collections are not held by many libraries, and pre-1973 bills may require an interlibrary loan request. Congressional bills, resolutions and laws from 1789-1933 have been preserved on microform by the Library of Congress; this material is not available at Duke. CIS has published Congressional Bills, Resolutions and Laws, a collection of bills on microfiche from the 73d-96th Congress (1933-1980); however, this collection is not available at Duke. The Government Printing Office began distributing bill texts on microfiche beginning with the 96th Congress (1980 - present). These are available in the Microforms Room, Level 1, Documents Y 1.4/.

For historical bills, the Library of Congress has digitized selected bills and resolutions through its American Memory Project. House materials are available from the 6th - 42nd Congress (1799-1873); Senate materials from the 16th - 42nd Congress (1819-1873). Note that this archive is not comprehensive.

In addition to the electronic and microfiche sources listed above, it is sometimes possible to locate the bill text reprinted in published hearings, committee reports, or the Congressional Record.



E. Other Publications
Other congressional documents, although not usually related to particular bills, may provide useful background for legislative history research.

1. Committee Prints
Many committee studies and reports are published under the general classification: “committee prints.” Committee prints are not usually related to a particular bill, but are often released in support of the committee’s general functions and activities. Although not widely distributed in hard copy, the prints are available in microfiche in the basic CIS collection (1970‑ present) and in U.S. Committee Prints on Microfiche, a CIS collection of more than 15,000 prints issued before 1969 (Microforms Room, Level 1). ProQuest Congressional provides the full text of committee prints back to the 19th century. Committee prints are also freely available back to 1997 via FDsys. Individual committees may also make them available on their websites. The CIS U.S. Congressional Committee Prints Index (Ref. Z1223 .Z7 C66 & electronic equivalent in ProQuest Congressional) includes indexes by subject, title, committee and congress, SuDocs number and bill number.

Although not widely distributed in hard copy, the prints are available in microfiche in the basic CIS collection (1970 - present) and in U.S. Committee Prints on Microfiche, a CIS collection of more than 15,000 prints issued before 1969 (Microforms Room, Level 1). Citations for the post-1970 prints can be found through the general CIS indexes and in ProQuest Congressional; access to the older material is through the CIS U.S. Congressional Committee Prints Index, that includes indexes by subject, title, committee and congress, SuDocs number and bill number (Ref.Z1223.Z7C66).



2. Congressional Research Service (CRS) Reports
Many congressional committee studies are prepared by the Congressional Research Service (CRS), an office of Congress which prepares nonpartisan research reports meant to help members of Congress understand public policy issues. (For example, see the 2011 guide to federal legislative history research, available online.) CRS does not provide the full text of these reports directly to the public, although citizens may request copies through the office of their congressperson.

ProQuest Congressional provides an index and selected full-text PDFs of CRS reports, dating back to 1916. The site features a number of search options for locating CRS reports on a topic.

In addition, a number of organizations have created free online archives of selected reports. The most comprehensive is through the University of North Texas Libraries, which attempts to compile available reports dating back to 1990. Its "Related Resources" page links to a number of other subject-based CRS report libraries, on topics such as the environment, national security, and foreign policy. The Open CRS Network and the Federation of American Scientists are two more excellent sources for locating these often elusive reports. A commercial publisher, Penny Hill Press, provides RSS feeds of newly-released reports.

Many CRS reports are also accessible through CIS microfiche. Others can be found in the microfilm publication: Major Studies and Issue Briefs of the CRS, first published in 1977 and supplemented through 1990 (Perkins/Bostock Public Documents has the index from 1976 and the full set from 1986). The material is indexed in a series of individual guides to the base set and its annual supplements.



VI. Other Sources of Information

Although there is much current journal literature on the uses of legislative history in statutory interpretation, there is no useful current bibliography. The standard American treatise on statutory interpretation is the multi-volume J.G. Sutherland, Statutes and Statutory Construction, 7th ed. (Reserve KF425 .S966 2007 & online in Westlaw's SUTHERLAND database). Sutherland provides only a limited treatment of legislative history problems, although a small bibliography is included in volume 4.

Compilation and uses of legislative histories are covered in general texts on legal research, such as Barkan, Mersky & Dunn's Fundamentals of Legal Research, 9th ed. (Reserve KF240 .P65 2009) and Federal Legal Research (Reference KF240 .F48 2012). Historical federal legislative history texts, while obviously outdated with regard to new publications and electronic resources, may be a good introduction to the documents of legislative history and research techniques for early laws, and can be found in the Duke University Libraries catalog with a subject heading search for “Legislative histories -- United States.”



rev. Jennifer L. Behrens
02/2014


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