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.
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.
Electronic Code of Federal Regulations
Title 21: Food and Drugs
§520.1451 Moxidectin tablets.
(a) Specifications. Each tablet contains 30, 68, or 136 micrograms of moxidectin.
(b) Sponsor. See No. 054771 in §510.600(c) of this chapter.
(c) Conditions of use—(1) Amount. 3 micrograms per kilogram (1.36 micrograms per pound) of body weight.
(2) Indications for use. To prevent infection by the canine heartworm Dirofilaria immitis and the subsequent development of canine heartworm disease.
(3) Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian.
[62 FR 37713, July 15, 1997, as amended at 78 FR 28825, May 20, 2014]