Explanation 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. ISSUE DATES 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 42 through Title 50. as of January 1 _as of April 1 __as of July 1 _as of October 1 The appropriate revision date is printed on the cover of each volume. LEGAL STATUS 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). HOW TO USE THE CODE OF FEDERAL REGULATIONS 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, September 26, 1977) the following two lists must be consulted: the "Cumulative List of CFR Sections Affected" 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. EFFECTIVE DATES 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. OBSOLETE PROVISIONS Provisions that become obsolete before the revision date stated on the cover of CFR INDEXES AND TABULAR GUIDES 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. This volume contains the Parallel Table of Statutory Authorities and Agency Rules (Table I), and Acts Requiring Publication in the Federal Register (Table II). A list of CFR An index to the text of Presidential documents appears at the end of each 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 A Cumulative List of CFR Sections Affected is published monthly, keyed to the revision dates of the 50 CFR titles. INQUIRIES AND SALES Inquiries concerning technical or legal 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 202-523-5240). Sales are handled exclusively by the Superintendent of Documents, Title 41-PUBLIC CONTRACTS AND PROPERTY MANAGEMENT consists of Sub- title A-Federal Procurement Regulations System, Subtitle B-Other Provisions Relating to Public Contracts and Subtitle C-Federal Property Management Regulations System. Subtitle D is reserved for other provisions relating to property The Federal procurement regulations in Chapter 1 of Subtitle A are those government-wide procurement regulations issued by the General Services Ad- ministration. In Chapters 2 through 49 of Subtitle A are procurement regulations issued by individual government agencies. The first 49 parts in each of Chapters 2 through 49 are reserved for agency regulations implementing the Federal pro- curement regulations in Chapter 1 and are numerically keyed to them. The remaining parts in Chapters 2 through 49 contain agency regulations supplementing the Federal procurement regulations. Other government-wide procurement regulations relating to public contracts The Federal property management regulations in Chapter 101 of Subtitle C are government-wide property management regulations issued by the General Services Administration. In the remaining chapters of Subtitle C are the imple- menting and supplementing property management regulations issued by individual Government agencies. Those regulations which implement Chapter 101 are The numbering system of Title 41 differs from that used for other titles of the |