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Cite this Code CFR

thus: 41 CFR 6-1:1


The Code of Federal Regulations is a codification of the general and permanent rules published in the Federal Register by the Executive departments and agencies of the Federal Government. The Code is divided into 50 titles which represent broad areas subject to Federal regulation. Each title is divided into chapters which usually bear the name of the issuing agency. Each chapter is further subdivided into parts covering specific regulatory areas.


Each volume of the Code is revised at least once each calendar year and issued on a quarterly basis approximately as follows:

Title 1 through Title 16............

Title 17 through Title 27.......
Title 28 through Title 41.......

Title 42 through Title 50......

as of January 1 of April 1


................................... as of July 1 ........ as of October 1

The appropriate revision date is printed on the cover of each volume.


The contents of the Federal Register are required to be judicially noticed (44 U.S.C. 1507). The Code of Federal Regulations is prima facie evidence of the text of the original documents (44 U.S.C. 1510).


The Code of Federal Regulations is kept up to date by the individual issues of the Federal Register. These two publications must be used together to determine the latest version of any given rule.

To determine whether there have been any amendments since the revision date of the Code volume in which the user is interested (in this case, July 3, 1978) the following two lists must be consulted: the "List of CFR Sections Affected (LSA)" issued monthly and the "Cumulative List of Parts Affected" which appears daily in the Federal Register. These two lists will refer the user to the Federal Register page where he may find the latest amendment of any given rule.


Each volume of the Code contains amendments published in the Federal Register since the last revision of that volume of the Code. Source citations for the regulations are referred to by volume number and page number of the Federal Register and date of publication. Publication dates and effective dates are usually not the same and care must be exercised by the user in determining the actual effective date. In instances where the effective date is beyond the cut-off date for the Code a note has been inserted to reflect the future effective date.

Provisions that become obsolete before the revision date stated on the cover of each volume are not carried. Code users may find the text of provisions in effect on a given date in the past by using the appropriate numerical list of sections affected. For the period before January 1, 1964, the user should consult the "List of Sections Affected, 1949-1963" published in a separate volume. For the period beginning January 1, 1964, a “List of CFR Sections Affected" is published at the end of each CFR volume.


A subject index to the Code of Federal Regulations which is revised annually as of July 1, is contained in a separate volume entitled CFR INDEX AND FINDING AIDS. This volume contains the Parallel Table of Authorities and Rules (Table I), and Acts Requiring Publication in the Federal Register (Table III). A list of CFR Titles, Chapters, and Parts, an alphabetical list of CFR subtitles and chapters, and lists of current and superseded CFR volumes are also included in this volume.

An index to the text of Presidential documents appears at the end of each compilation of Title 3, The President.

The Federal Register Index is issued monthly, quarterly, and annually. This index is based on a consolidation of the "Contents" entries in the daily Federal Register.

A List of CFR Sections Affected (LSA) is published monthly, keyed to the revision dates of the 50 CFR titles.


Inquiries concerning technical aspects of the Code should be addressed to the Director, Office of the Federal Register, National Archives and Records Service, General Services Administration, Washington, D.C. 20408 (telephone 202-5235240). Sales are handled exclusively by the Superintendent of Documents, Government Printing Office, Washington, D.C. 20402.

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Title 41 is composed of 11 volumes. The chapters in these volumes are arranged as follows: Chapters 1-2, Chapters 3-6, Chapter 7, Chapter 8, Chapter 9, Chapters 10-17, Chapters 18 (Volumes I, II, and III), Chapters 19-100, and Chapters 101 to end.


The NASA Procurement Regulation in 41 CFR Chapter 18 appears in three volumes as follows:

(1) Title 41, Chapter 18, Parts 1-52, Volume I (containing Parts 1-5),

(2) Title 41, Chapter 18, Parts 1-52, Volume II (containing Parts 6-19), and (3) Title 41, Chapter 18, Parts 1-52, Volume III (containing Parts 20-52 and Appendices).


Normally, text appearing in the CFR is derived from matter previously published in the Federal Register. In this instance, however, the NASA PR is being updated and incorporated directly into the CFR. Currently, these regulations are contained in a looseleaf publication and are distributed by NASA to a list of subscribers. Because of the great bulk of this material, a decision was made to bypass the Federal Register and make the CFR the place of primary publication for the NASA Procurement Regulation. Announcement of this special method of promulgation was made on September 8, 1978 (43 FR 40018).

The CFR volumes have been reproduced photographically from the updated 1977 NASA PR edition and, thus, are identical in content. As such these CFR volumes contain the NASA PR numbering system which differs substantially from standard CFR numbering. (See below)


For the 1978 edition, the Office of the Federal Register has agreed to accept the NASA numbering or "codification" system. This was done in the interest of expediting the complete publication of the procurement regulations and to facilitate future amendments. The following table shows the correlation between NASA PR and CFR numbering terminology:







..... Part Subpart


The terms above represent levels or rankings of text. All of the NASA PR is contained in 41 CFR Chapter 18, which is referred to as the "Regulation." This

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