This book contains the rules and regulations constituting Title 21, re-
vised as of December 31, 1955. It replaces the volume published in 1949
entitled Title 21-Food and Drugs, and becomes an integral part of the
Code of Federal Regulations. In consolidating the material contained in
the 1949 volume with subsequent changes and additions, there have been
included all rules and regulations, general and permanent in nature, duly
published in the Federal Register on or before December 31, 1955, and
effective as to facts arising on or after January 1, 1956.
This book is provided with a pocket for the insertion of annual cumulative
supplements. Current regulatory material appearing in the daily issues
of the Federal Register follows the numbering system used herein and
serves as a daily supplement hereto. The book contains a subject index.
It also contains a list of sections affected since the publication of the 1949
volume. This list furnishes Federal Register citations to all changes in the
material since January 1, 1949, including changes which are no longer in
This book is published pursuant to Part 2 of the regulations of the Ad-
ministrative Committee of the Federal Register, approved by the President
October 11, 1948 (13 F. R. 5935; 1 CFR Part 2), under the authority con-
tained in section 11 (f) of the Federal Register Act as amended (67 Stat.
388; 44 U. S. C. 311 (f)). 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 (e)). The approved citation of the
Code is “CFR.”
Thus the citation “21 CFR 1.1” refers to Section 1.1
of this Title.
A General Preface to the Code of Federal Regulations appears in the
volume containing Titles 1–3 and also in the General Index volume.
B. R. KENNEDY
D. C. EBERHART
January 5, 1956.