Download the Code of Federal Regulations in XML.
The Electronic Code of Federal Regulations (e-CFR) is a regularly updated, unofficial editorial compilation of CFR material and Federal Register amendments produced by the National Archives and Records Administration's Office of the Federal Register (OFR) and the Government Printing Office.
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
Amendment from June 20, 2005
21 CFR--PART 520
View Printed Federal Register page 76 FR 59024 in PDF format.
Amendment(s) published September 23, 2011, in 76 FR 59024
Effective Dates: September 23, 2011
2. In §520.2640, add paragraph (b)(3); and revise paragraphs (a), (b)(1), (b)(2), (d)(2)(ii), (d)(3)(ii)(A), (d)(3)(ii)(B), and (d)(3)(iii) to read as follows:
(a)Specifications.Each container of soluble powder contains tylosin tartrate equivalent to either 100 or 256 grams tylosin base.
(b) * * *
(1) No. 000986 for use of a 100-gram jar as in paragraph (d) of this section.
(2) No. 016592 for use of a 100-gram jar or pouch as in paragraphs (d)(1), (d)(2), (d)(3)(i), (d)(3)(ii)(B), (d)(3)(iii), and (d)(4) of this section.
(3) No. 061623 for use of a 100- or 256-gram jar or pouch as in paragraphs (d)(1), (d)(2), (d)(3)(i), (d)(3)(ii)(B), (d)(3)(iii), and (d)(4) of this section.
* * * * *
(d) * * *
(2) * * *
(ii)Indications for use.For maintaining weight gain and feed efficiency in the presence of infectious sinusitis associated withMycoplasma gallisepticumsensitive to tylosin.
* * * * *
(3) * * *
(ii) * * *
(A) For the treatment and control of swine dysentery associated withBrachyspira hyodysenteriaewhen followed immediately by tylosin phosphate medicated feed; and for the control of porcine proliferative enteropathies (PPE, ileitis) associated withLawsonia intracellulariswhen followed immediately by tylosin phosphate medicated feed.
(B) For the treatment and control of swine dysentery associated withBrachyspira hyodysenteriae.
(iii)Limitations.Prepare a fresh solution daily. Do not administer within 48 hours of slaughter. As indicated in paragraph (d)(3)(ii)(A) of this section, follow with tylosin phosphate medicated feed as in §558.625(f)(1)(vi)(c) of this chapter.
* * * * *