[Code of Federal Regulations]
[Title 21, Volume 6]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR556.228]

[Page 345]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 556--TOLERANCES FOR RESIDUES OF NEW ANIMAL DRUGS IN FOOD--Table of Contents
 
     Subpart B--Specific Tolerances for Residues of New Animal Drugs
 
Sec.  556.228  Enrofloxacin.

    The acceptable daily intake for enrofloxacin is 3 micrograms per 
kilogram of body weight per day.
    (a) Chickens and turkeys. A tolerance of 0.3 part per million is 
established for residues of enrofloxacin (marker residue) in muscle 
(target tissue) of chickens and turkeys.
    (b) Cattle. A tolerance of 0.1 part per million for desethylene 
ciprofloxacin (marker residue) has been established in liver (target 
tissue) of cattle.

[61 FR 56893, Nov. 5, 1996, as amended at 63 FR 49003, Sept. 14, 1998]