e-CFR banner

Home
gpo.gov
govinfo.gov

e-CFR Navigation Aids

Browse

Simple Search

Advanced Search

 — Boolean

 — Proximity

 

Search History

Search Tips

Corrections

Latest Updates

User Info

FAQs

Agency List

Incorporation By Reference

eCFR logo

Related Resources

The Code of Federal Regulations (CFR) annual edition is the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government produced by the Office of the Federal Register (OFR) and the Government Publishing Office.

Download the Code of Federal Regulations in XML.

Download the Electronic Code of Federal Regulations in XML.

Monthly Title and Part user viewing data for the e-CFR is available for download in CSV format.

Parallel Table of Authorities and Rules for the Code of Federal Regulations and the United States Code
Text | PDF

Find, review, and submit comments on Federal rules that are open for comment and published in the Federal Register using Regulations.gov.

Purchase individual CFR titles from the U.S. Government Online Bookstore.

Find issues of the CFR (including issues prior to 1996) at a local Federal depository library.

[A1]

 

Electronic Code of Federal Regulations

e-CFR data is current as of January 24, 2020

Title 21 → Chapter I → Subchapter E → Part 500

TITLE 21—Food and Drugs

CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED)

SUBCHAPTER E—ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS

PART 500—GENERAL

rule

Subpart A—[RESERVED]

rule

Subpart B—SPECIFIC ADMINISTRATIVE RULINGS AND DECISIONS

§500.23
Thermally processed low-acid foods packaged in hermetically sealed containers.
§500.24
Emergency permit control.
§500.25
Anthelmintic drugs for use in animals.
§500.26
Timed-release dosage form drugs.
§500.27
Methylene blue-containing drugs for use in animals.
§500.29
Gentian violet for use in animal feed.
§500.30
Gentian violet for animal drug use.
§500.45
Use of polychlorinated biphenyls (PCB's) in the production, handling, and storage of animal feed.
§500.46
Hexachlorophene in animal drugs.
§500.50
Propylene glycol in or on cat food.
rule

Subpart C—ANIMAL DRUG LABELING REQUIREMENTS

§500.51
Labeling of animal drugs; misbranding.
§500.52
Use of terms such as “tonic”, “tone”, “toner”, or “conditioner” in the labeling of preparations intended for use in or on animals.
§500.55
Exemption from certain drug-labeling requirements.
rule

Subpart D—REQUIREMENTS FOR SPECIFIC ANIMAL DRUGS

§500.65
Epinephrine injection 1:1,000 in 10-milliliter containers for emergency treatment of anaphylactoid shock in cattle, horses, sheep, and swine.
rule

Subpart E—REGULATION OF CARCINOGENIC COMPOUNDS USED IN FOOD-PRODUCING ANIMALS

§500.80
Scope of this subpart.
§500.82
Definitions.
§500.84
Conditions for approval of the sponsored compound.
§500.86
Marker residue and target tissue.
§500.88
Regulatory method.
§500.90
Waiver of requirements.
§500.92
Implementation.
rule

Subpart F—METHODS FOR DETECTION OF RESIDUES OF CARCINOGENIC COMPOUNDS USED IN FOOD-PRODUCING ANIMALS

§500.1410
N-methyl-2-pyrrolidone.

Need assistance?