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 numerical list of sections affected. For the period before January 1, 1964, the user should consult the "List of Sections Affected, 19491963" 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 book.

GENERAL INDEX

The subject index to the Code, which is revised annually, and supplemented periodically, is contained in a separate volume entitled "General Index." This volume also contains a table of CFR titles, chapters, and parts, an alphabetical list of CFR subtitles and chapters, and lists of current and superseded CFR volumes. An index to the text of Presidential documents is found at the end of each compilation of Title 3A, The President.

ADDITIONAL FINDING AIDS

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Designation

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Table III-Guide to Federal Register Find-
ing Aids.

Table IV—List of Acts Reguiring Publication in the Federal Register.

Nature

Table of U.S.C. citations with related CFR citations.

Table of Proclamations and Executive orders included or cited in CFR.

Table of Finding Aids and location in Federal Register Publications.

Table of Acts with Statutory and U.S.C citations.

This volume also contains a table of CFR titles, chapters, and parts, an alphabetical list of CFR subtitles and chapters, and lists of current and superseded CFR volumes.

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April 1, 1975.

FRED J. EMERY

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Title 21-Food and Drugs

(This book contains Parts 600 to 1299)

Part

CHAPTER I—Food and Drug Administration, Department of Health, Education, and Welfare (Continued)

600

CROSS REFERENCES: Federal Trade Commission: See Commercial Practices, 16 CFR Chapter I.

U.S. Customs Service, Department of the Treasury: See Customs Duties, 19 CFR Chapter I Internal Revenue Service, Department of the Treasury: See Internal Revenue, 26 CFR Chapter I. Bureau of Alcohol, Tobacco, and Firearms, Department of the Treasury: See Alcohol, Tobacco Products and Firearms, 27 CFR Chapter I.