This book contains the rules and regulations constituting Title 20, re-
vised as of January 1, 1967. It replaces the volume entitled "Title 20—
Employees' Benefits, Revised as of January 1, 1966," and becomes an inte-
gral part of the Code of Federal Regulations. The text in this revision
is derived from the latest text of the rules and regulations, general and per-
manent in nature, duly promulgated in the Federal Register on or before
December 31, 1966. Source materials from which the text is derived are
cited with the text and should be consulted to determine the effective date
of any given provision. All dates appearing in the source citations are
dates of publication in the Federal Register and should not be construed
as effective dates.
Current regulatory material appearing in the daily issues of the Federal
Register follows the numbering system used herein and serves as a supple-
ment hereto. This book contains the following finding aids: a list of cur-
rent CFR volumes; a list of superseded CFR volumes; an alphabetical list
of CFR subtitles and chapters; and a list of sections affected which fur-
nishes Federal Register citations to all changes in this book beginning January
1, 1964, including changes which are no longer in effect.
A compilation of the list of sections affected for the entire Code of Federal
Regulations from January 1, 1949, through December 31, 1963, is pub-
lished in a separate volume entitled "List of Sections Affected, 1949-1963."
A General Explanation of the Code of Federal Regulations appears in
the volume containing Titles 1-3, and in the General Index volume.
This book is published pursuant to Part 30 of the regulations of the
Administrative Committee of the Federal Register, as revised December 7,
1965 (30 F.R. 15131; 1 CFR Part 30), under the authority contained in
section 11 of the Federal Register Act as amended (67 Stat. 388, as
amended; 44 U.S.C. 311). The contents of the Federal Register and of
the Code of Federal Regulations are by law prima facie evidence of the
text of the original documents and are required to be judicially noticed
(49 Stat. 502, 67 Stat. 388; 44 U.S.C. 307, 311). The approved citation
of the Code is "CFR." Thus the citation "20 CFR 01.1" refers to section
01.1 of this Title.